Patent Publication Number: US-7593983-B2

Title: Data processing apparatus, data processing method, and storage medium storing computer-readable program

Description:
This application is a continuation of application Ser. No. 09/560,184, filed Apr. 28, 2000. 

   BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   The present invention relates to a data processing apparatus capable of data communication with various apparatuses, a data processing method, a storage medium storing computer-readable programs, and the like. 
   2. Related Background Art 
   Devices such as personal computers (PC), printers, scanners, digital copying machines and digital cameras are now widely used and networks such as LAN&#39;s are prevailing. Under such circumstances, needs of sharing a printer, a modem or an image reader on a network are increasing. By sharing devices such as printers and scanners on the network, the environment that various devices can be used on the network has been established. 
   However, a method of combining devices to realize a particular function such as a copy function to be realized by a combination of a scanner and a printer or a combination of a digital copying machine and a scanner, is not available in some cases. Even if such a method is made available, specific devices are required or only devices of a particular kind can be used. Devices capable of being applied to general use are not known. 
   When a user sets a combination of devices to realize a particular function, if the user cannot grasp all option units and expansion functions of each device, there is a possibility that the performance of each device cannot be demonstrated most effectively, the user cannot set each device as desired, or the user may abandon to set each device as desired. For example, in the case of a digital copying machine, such option units include an automatic document feeder (ADF), a sorter, a sheet cassette, a sheet deck and the like, and such expansion functions include a page layout function, a two-face printing function, a bookbinding function, an OHP printing function, a staple function, a stamp function and the like. Each device shared by users is installed in many cases at a remote site in a network environment. Even if devices have the same fundamental function, in many cases some devices have some expansion functions whereas other devices don&#39;t have such expansion functions. It is therefore difficult for a remote side user to grasp information of these devices in the network environment by using a list display form. Even if the network environment can meet various needs of users, the system may not be utilized most effectively because users cannot grasp the system. In order to solve these possible problems, a user interface easy to use has been desired to date. 
   It has also been desired not only to realize a particular function by a combination of devices, but also to meet various complicated and sophisticated needs of users under advancement of techniques. For example, a function together with composite image processing provided by a user computer is desired. Therefore, an excellent user interface easy to use in dealing with an image processing request from users has also been desired. 
   SUMMARY OF THE INVENTION 
   It is an object of the invention to solve the above-described problems and provide a data processing apparatus and method, and a storage medium storing computer-readable programs. 
   It is another object of the invention to provide a data processing apparatus capable of allowing a user to visually confirm the configuration of various devices of a network system together with expansion functions and flexibly meeting various complicated and sophisticated needs of users under advancement of techniques, a data processing method and a storage medium storing computer-readable programs. 
   The other objects and features of the present invention will become apparent from the following detailed description of embodiments when read in conjunction with the accompanying drawings. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is a block diagram showing a structure of a system of network devices including a data processing apparatus according to the present invention; 
       FIG. 2  is a block diagram for explaining a client structure in the first embodiment of the present invention; 
       FIG. 3  is a sectional view for explaining a structure of a digital copying machine shown in  FIG. 1 ; 
       FIG. 4  is a block diagram for explaining a control structure of the copying machine shown in  FIG. 3 ; 
       FIG. 5  is a view for explaining a first network connection structure displayed on a CRT (cathode-ray tube) shown in  FIG. 2 ; 
       FIG. 6  is a view showing an example of a combination judgment data structure stored in a data processing apparatus shown in  FIG. 2 ; 
       FIG. 7  is a view showing an example of a copying function setting screen displayed on the CRT shown in  FIG. 2 ; 
       FIG. 8  is a view showing an example of an error message displayed on the CRT shown in  FIG. 2 ; 
       FIG. 9  is a flow chart showing an example of a first data processing procedure in the data processing apparatus according to the present invention; 
       FIG. 10  is a view showing an example of device driver information managed by a data processing apparatus according to the second embodiment of the present invention; 
       FIG. 11  is a view for explaining a second network connection structure displayed on the CRT shown in  FIG. 2 ; 
       FIG. 12  is a view showing an example of a virtual operation panel displayed on the CRT of the data processing apparatus shown in  FIG. 2 ; 
       FIG. 13  is a view showing an example of the virtual operation panel displayed on the CRT of the data processing apparatus shown in  FIG. 2 ; 
       FIG. 14  is a view showing an example of the virtual operation panel displayed on the CRT of the data processing apparatus shown in  FIG. 2 ; 
       FIG. 15  is a view showing an example of a first window displayed, in case of amusement setting, on the virtual operation panel of the CRT of the data processing apparatus shown in  FIG. 2 ; 
       FIG. 16  is a view showing an example of a second window displayed, in case of amusement setting, on the virtual operation panel of the CRT of the data processing apparatus shown in  FIG. 2 ; 
       FIG. 17  is a view showing an example of a property screen displayed, according to icon instructions, on the virtual operation panel of the CRT of the data processing apparatus shown in  FIG. 2 ; 
       FIG. 18  is a view showing an example of a resource file of device driver information managed by the data processing apparatus according to the second embodiment of the present invention; 
       FIG. 19  is a view showing an example of a button editing screen displayed on the virtual operation panels shown in  FIGS. 12 to 14 ; 
       FIG. 20  is a view showing an example of log information managed by a data processing apparatus according to the third embodiment of the present invention; 
       FIG. 21  is a view showing an example of the log information managed by the data processing apparatus according to the third embodiment of the present invention; 
       FIG. 22  is a view showing an example of the log information managed by the data processing apparatus according to the third embodiment of the present invention; 
       FIG. 23  is a view showing an example of the log information managed by the data processing apparatus according to the third embodiment of the present invention; 
       FIG. 24  is a view showing an example of the log information managed by the data processing apparatus according to the third embodiment of the present invention; 
       FIG. 25  is a view showing an example of the log information managed by the data processing apparatus according to the third embodiment of the present invention; 
       FIG. 26  is a view showing relation between a data processing apparatus registered as a management server and a client device, in the data processing apparatus according to the present invention; 
       FIG. 27  is a view for explaining management server device information shown in  FIG. 26 ; 
       FIG. 28A  is a view for explaining in detail PC (personal computer) information shown in  FIG. 27 ; 
       FIG. 28B  is a view for explaining in detail printer information shown in  FIG. 27 ; 
       FIG. 29A  is a view for explaining in detail scanner information shown in  FIG. 27 ; 
       FIG. 29B  is a view for explaining in detail FAX (facsimile) board information shown in  FIG. 27 ; 
       FIG. 30  is a view for explaining server device information shown in  FIG. 26 ; 
       FIG. 31  is a view for explaining client device information shown in  FIG. 26 ; 
       FIG. 32  is a flow chart showing an example of a second data processing procedure in the data processing apparatus according to the present invention; 
       FIG. 33  is a view showing an example of a copying function execution screen of a data processing apparatus according to the fourth embodiment of the present invention; 
       FIG. 34  is a flow chart showing an example of a third data processing procedure in the data processing apparatus according to the present invention; 
       FIG. 35  is a flow chart showing an example of a fourth data processing procedure in the data processing apparatus according to the present invention; 
       FIG. 36  is a view showing an example of a warning message displayed on the CRT shown in  FIG. 2 ; 
       FIG. 37  is a view showing an example of an output format selection window displayed on the CRT shown in  FIG. 2 ; 
       FIG. 38  is a flow chart showing an example of a fifth data processing procedure in the data processing apparatus according to the present invention; 
       FIG. 39  is a view showing an example of the warning message displayed on the CRT shown in  FIG. 2 ; 
       FIG. 40  is a flow chart showing an example of a sixth data processing procedure in the data processing apparatus according to the present invention; 
       FIG. 41  is a flow chart showing an example of a seventh data processing procedure in the data processing apparatus according to the present invention; 
       FIG. 42  is a view showing an example of a virtual operation panel displayed on the CRT of the data processing apparatus shown in  FIG. 2 ; 
       FIG. 43  is a view showing an example of a combination document selection window displayed according to icon instructions corresponding to buttons displayed on the virtual operation panel of the CRT of the data processing apparatus shown in  FIG. 2 ; 
       FIG. 44  is a view showing an example of a combination image data selection window displayed according to the icon instructions corresponding to the buttons displayed on the virtual operation panel of the CRT of the data processing apparatus shown in  FIG. 2 ; 
       FIG. 45  is a flow chart showing an example of an eighth data processing procedure in the data processing apparatus according to the present invention; and 
       FIG. 46  is a view for explaining a memory map of a storage medium in which various data processing programs readable by the data processing apparatus according to the present invention are stored. 
   

   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
   First Embodiment 
   &lt;Explanation of Apparatus&gt; 
     FIG. 1  is a block diagram showing a structure of a system of network devices including a data processing apparatus according to the present invention. 
   In  FIG. 1 , a printer  102  which has open-system architecture is connected with a network through an NB (network board)  101 . The NB  101  is connected with LAN&#39;s  100 ,  120  and  130  through a local area network interface such as an Ethernet interface 10BASE2 having a coaxial connector, an Ethernet interface 10BASE-T having an RJ-45, or the like. 
   Plural PC&#39;s (personal computers)  103 ,  104 ,  111  and  112  are also connected with the LAN&#39;s  100  and  130 , whereby these PC&#39;s can communicate with the NB  101  under the control of a network operating system. 
   Therefore, one of the PC&#39;s (e.g., the PC  103 ) can be used as the PC for network device management. Further, a printer  105  may be locally connected with the PC  104  as a local printer. 
   Further, since a PC  106  which functions as a file server is connected with the LAN  100 , the PC  106  manages accessing to files stored in a large-capacity (e.g., 10,000,000,000 bytes) network disk  107 . 
   The PC  104  which functions as a printer server manages printing of the printer such as the locally connected printer  105 , the remotely located printer  102  or the like. 
   Similarly, a PC  115  which functions as a printer server manages printing of the printer such as a locally connected printer  116 , the remotely located printer  102  or the like. 
   Further, the PC  115  can be functioned as a scanner server to manage the scanner such as a remotely located scanner  110  or the like. The scanner  110  is connected with the LAN  100  through the network board or the like. Further, a digital copying machine  118  provides printer and scanner functions under the management and control of an image processing unit  119 . 
   In order to effectively perform communication among various network members, Network software such as Novell, UNIX or the like can be used for the network shown in  FIG. 1 . For example, software such as commercially available NetWare (trademark of Novell) can be used. Since the details of this software package are described in the on-line documentation included in the NetWare package, the explanation thereof will be omitted. 
   Each of the PC&#39;s  103  and  104  is a general PC which can generate a data file, transmit the generated data file to the LAN  100 , receive a file from the LAN  100 , display these files, and/or process these files. 
   In  FIG. 1 , although the personal computer devices (PC&#39;s) are illustrated, other computer devices suitable for executing the network software may be used. For example, when UNIX software is used, a UNIX workstation may be connected with the network. In this case, the connected UNIX workstation is used together with the illustrated PC&#39;s. 
   Ordinarily, the LAN  100  provides services to a relatively local user group, e.g., a user group in one floor or plural consecutive floors in one building. 
   On the other hand, when plural users are located at positions away from others (e.g., different buildings, different prefectures or the like), a WAN (wide area network) may be constructed. 
   Basically, the WAN is composed of the plural LAN&#39;s which are connected together through a high-speed digital line such as ISDN (Integrated Services Digital Network). For example, as shown in  FIG. 1 , when the LAN  100  and the LAN  120  are connected with each other through a backbone  140 , the WAN is established. In this case, the devices connected with the LAN&#39;s  100 ,  120  and  130  can access functions of devices connected with other LAN&#39;s through the WAN. 
     FIG. 2  is a block diagram for explaining a client structure acting as a data processing apparatus according to the first embodiment of the present invention. It is assumed that, in the client structure, predetermined devices (including the printer, the scanner, the modem, a multifunctional image processing apparatus, etc.) can communicate with locally connected other data processing apparatus based on a predetermined protocol through a not-shown communication medium (e.g., a LAN according to Ethernet or the like). 
   In  FIG. 2 , numeral  1  denotes a system bus to which later-explained units are connected, and numeral  2  denotes a CPU (central processing unit). 
   Numeral  3  denotes a PMEM (program memory) which appropriately selects and reads a program for the processing, from an HD (hard disk)  10 . The read program is executed by the CPU  2 . Further, data input from a keyboard  12  is stored as code information in the PMEM  3  also acting as a text memory. 
   Numeral  4  denotes a communication control unit which controls input and output data of a communication port  5 . A signal output from the communication port  5  is transmitted to a communication port  7  of other apparatus on the network through a communication line  6 . 
   A printer and an image reading apparatus (e.g., the scanner) which are shared on the network are controlled through the communication control unit  4 . Although the network such as the LAN is used in the present embodiment, it is needless to say that the present invention is applicable to a case where the communication port or the communication line connected with the communication control unit  4  is a general public line. 
   Numeral  8  denotes an external memory control unit which controls access to a data file disk such as an FD (floppy disk)  9 , the HD  10  or the like. 
   Numeral  11  denotes an input control unit to which input devices such as the keyboard  12 , a mouse  13  and the like are connected. A user issues an operation instruction to the system by operating the keyboard  12 . Numeral  16  denotes a CRT (cathode-ray tube) on which a PD (pointing device) is used to instruct editing of image information. In the present embodiment, the mouse  13  is used as the PD. 
   Thus, the user arbitrarily shifts a cursor on the CRT  16  in X and Y directions and selects a command icon on a command menu to instruct the processing. Besides, the user shifts the cursor to indicate an editing target, a drawing position and the like. 
   Numeral  14  denotes a VRAM (video random-access memory) which acts as a video image memory. Drawing data (bit map data) which is to be displayed on the CRT  16  is expanded in the VRAM  14 , the expanded data is appropriately read by a display output control unit  15 , and the content of the read data is displayed on the CRT  16 . Numeral  17  denotes a printer control unit which controls data outputting to a connected printer  18 . 
   Symbol  1 A denotes an image reading device control unit which controls image reading of a connected image reading device  1 B. An external device control unit  19  controls the operation of the external device through the printer control unit  17  or the image reading device control unit  1 A. 
   In an image reading server of the present invention necessarily includes the image reading device control unit  1 A and the image reading device  1 B. Incidentally, as described above, a client-side apparatus can share these units with the server, through the communication control unit  4  and the communication port  5 . 
   Further, in the structure of  FIG. 2 , even if the image reading device is physically independent of the image reading apparatus, it is assumed that the image reading apparatus has the function of one component including the image reading device. 
   In the present embodiment, the program which is stored in a ROM (read-only memory) may be stored in the HD  10  or the FD  9  directly connected with the apparatus, or in other apparatus connected with the apparatus through the network. Further, the program according to the present invention can be supplied to the system or the apparatus through the storage medium such as the HD  10 , the FD  9  or the like, or through the network. 
     FIG. 3  is a sectional view for explaining the structure of the digital copying machine  118  shown in  FIG. 1 . 
   In  FIG. 3 , numeral  2080  denotes an ADF (automatic document feeder) which is installed as an option. The ADF  2080  feds an original one by one from a sheaf of originals put on an original feeding board to an original mounting board (platen glass)  200  of the copying machine  118 . Numeral  2002  denotes a scanner which is composed of an original illumination lamp  2003 , a scanning mirror  2004  and the like. The scanner  2002  is reciprocated by a not-shown motor along a predetermined direction to scan the original. Thus, reflection light from the original is imaged on a CCD (charge-coupled device) in an image sensor unit  2008  through scanning mirrors  2004 ,  2005  and  2006  and a lens  2007 . 
   The image sensor unit  2008  performs predetermined image processing to an electrical signal obtained by converting the reflection light from the original, to generate an image signal. Numeral  2009  denotes an exposure control unit which is composed of a laser beam generation unit, a polygonal scanner and the like. The exposure control unit  2009  generates a laser beam  2019  which is modulated based on the image signal generated by the image sensor unit  2008 , and irradiates a photosensitive drum  2011  with the generated beam  2019 . 
   Numeral  2010  denotes an image formation unit which is composed of the photosensitive drum  2011 , a primary charger  2012 , a development unit  2013 , a transfer charger  2016 , a separation charger  2017 , a preexposure lamp  2014 , a cleaner  2015  and the like. The primary charger  2012 , the development unit  2013 , the transfer charger  2016 , the separation charger  2017 , the preexposure lamp  2014  and the cleaner  2015  are disposed around the photosensitive drum  2011 . 
   In the image formation unit  2010 , the photosensitive drum  2011  is driven by a not-shown motor and thus rotated in the direction indicated by an arrow A. The primary charger  2012  charges the photosensitive drum  2011  to a predetermined potential. The later beam  2019  generated by the exposure control unit  2009  is irradiated on the photosensitive drum  2011  charged by the primary charger  2012 , whereby an electrostatic latent image is formed. The development unit  2013  develops the electrostatic latent image formed on the photosensitive drum  2011  to visualize the image on the drum  2011  as a toner image. 
   Numerals  2021 ,  2022 ,  2023  and  2024  respectively denote first, second, third and fourth cassettes which hold transfer sheets as recording media. The transfer sheet held in the cassette is picked up by a pickup roller  2025 ,  2026 ,  2027  or  2028 , fed to the copying machine  118  by a pair of sheet feed rollers (simply referred as a sheet feed roller hereinafter)  2029 ,  2030 ,  2031  or  2032 , and then carried to the image formation unit  2010  by a pair of registration rollers (simply referred as a registration roller hereinafter)  2033 . 
   The transfer charger  2016  transfers the visualized toner image on the photosensitive drum  2011  to the carried transfer sheet. After the toner image is transferred to the transfer sheet, the cleaner  2015  cleans residual toner on the photosensitive drum  2011 . After the residual toner is cleaned by the cleaner  2015 , the preexposure lamp  2014  eliminates the residual charges on the photosensitive drum. 
   The separation charger  2017  separates the transfer sheet on which the toner image was transferred, from the photosensitive drum  2011 . Numeral  2034  denotes a carrying belt which carries the transfer sheet separated by the separation charger  2017 , to a fixing unit  2035 . The fixing unit  2035  presses and heats the transfer sheet to fix the toner image on the transfer sheet. Numeral  2036  denotes a pair of sheet discharge rollers (simply referred as a discharge roller hereinafter) which discharges the transfer sheet on which the toner image was fixed by the fixing unit  2035 , outside the copying machine (body)  118 . 
   Numeral  2037  denotes a sheet discharge flapper which changes the sheet transfer path between a carrying path  2038  and a discharge path  2043 . Numeral  2040  denotes a lower carrying path which guides, to a sheet refeed path  2041 , the transfer sheet carried by the sheet discharge roller  2036  and a pair of reversal rollers (simply referred as a reversal roller hereinafter)  2045  and then reversed through a reversal path  2039 . 
   Numeral  2042  denotes a pair of sheet refeed rollers (simply referred as a sheet refeed roller hereinafter) which refeeds the transfer sheet guided to the sheet refeed path  2041  to the image formation unit  2010 . Numeral  2044  denotes a pair of sheet discharge rollers (simply referred as a sheet discharge roller hereinafter) which is disposed in the vicinity of the sheet discharge flapper  2037  and discharges the transfer sheet outside the copying machine  118  when the sheet transfer path is changed to the sheet discharge path  2043  by the flapper  2037 . 
   When the copying machine  118  performs two-face recording (two-face copying), the sheet discharge flapper  2037  is moved upward to guide the transfer sheet to which the copying was performed to the sheet refeed path  2041  through the carrying path  2038 , the reversal path  2039  and the lower carrying path  2040 . At this time, the reversal roller  2045  completely passes the trailing edge of the transfer sheet through the carrying path  2038  and then carries the sheet to the reversal path  2039  up to the position where the sheet is nipped by the reversal roller  2045 . Then the reversal roller  2045  is reversed to carry the sheet to the lower carrying path  2040 . 
   When the transfer sheet is reversed and discharged outside the copying machine (body)  118 , the sheet discharge flapper  2037  is moved upward, and the transfer sheet is carried to the reversal path  2039  by the reversal roller  2045  up to the position where the trailing edge of the sheet remains in the carrying path  2038 . Then the reversal roller  2045  is reversed to reverse and carry the sheet to the sheet discharge roller  2044 . 
   Numeral  2090  denotes a sheet discharge unit (sorter) which is installed as an option, and flushes and staples the transfer sheets discharged from the copying machine  118 . Concretely, the transfer sheets discharged one by one are stacked and flushed on a processing tray  2094  until the discharge of the sheets to which image formation of one copy (one sheaf) ends. Then the sheaf of transfer sheets is stapled by a not-shown stapler of the processing tray  2094 , and the stapled sheaf is discharged to a sheet discharge tray  2092  or  2093 . Each of the sheet discharge trays  2092  and  2093  is moved upward and downward by a not-shown motor and controlled to reach the position of the processing tray  2094  before an image processing operation is started. 
   Numeral  2091  denotes a sheet tray on which slipsheets each of which is to be inserted between the two continuous transfer sheets discharged are stacked. Numeral  2095  denotes a Z folder which is installed as an option and folds the discharged transfer sheets into Z shape. Numeral  2096  denotes a bookbinding unit which is installed as an option and performs bookbinding by folding the center of the discharged transfer sheets of one copy and then stapling them. The obtained sheaf of transfer sheets is discharged to a sheet discharge tray  2097 . 
   Further, a paper deck (or a sheet deck)  2050  which can hold, e.g., 4000 transfer sheets is installed as an option in the copying machine (body)  118 . A lifter  2051  of the paper deck  2050  ascends according to a quantity of the stacked transfer sheets such that the uppermost sheet is always in contact with a pickup roller  2052 , whereby the transfer sheet is fed to the body  118  by a pair of sheet feed rollers (simply referred as a sheet feed roller hereinafter)  2053 . Further, a multipurpose manual feeder  2054  which can hold  100  transfer sheets is installed. 
   The development unit  2013  may be a type in which toner is refilled by changing a toner cassette, or may be a type in which toner is directly refilled. Further, the development unit  2013  can detect a residual toner quantity in the unit  2013  itself. 
   Here, although a structure of a monochromatic copying machine is explained by way of example of the image output apparatus of the present invention, the present invention is applicable to a color copying machine. 
   In this case, the development unit  2013  is composed of four, i.e., Y (yellow), M (magenta), C (cyan) and Bk (black), development parts. Further, the development unit  2013  can independently detect each of residual Y, M, C and Bk toner quantities. 
   Further, the copying machine  118  can detect a residual transfer sheet quantity in each of the first to fourth cassettes  2021 ,  2022 ,  2023  and  2024 , and the paper deck  2050 . The sheet discharge unit (sorter)  2090  can detect a residual staple quantity in the processing tray  2094 . Since the sheet discharge unit (sorter)  2090 , the Z folder  2095  and the paper deck  2050  are the options, they are detachably installed in the copying machine (body)  118 . 
     FIG. 4  is a block diagram for explaining a control structure of the copying machine  118  shown in  FIG. 3 . In  FIG. 4 , the same parts as those in  FIG. 3  are added with the same reference numerals. 
   In  FIG. 4 , numeral  3002  denotes an operation unit which is used to perform various setting and instruct various operations for the digital copying machine (body)  118 . Numeral  3003  denotes a reader unit which is composed of the elements  2001  to  2009  shown in  FIG. 3 , reads the original image, and outputs the image data corresponding to the original image to a printer unit  3004  and a control unit  3009 . The printer unit  3004  which is composed of the elements  2009  to  2045  shown in  FIG. 3  outputs the image according to the image data from the reader unit  3003  and the control unit  3009  onto a recording medium. 
   The control unit  3009  is connected with the reader unit  3003 , a FAX (facsimile) unit  3006 , a network I/F (interface) unit  3007  and an HD (hard disk) unit  3008 , and entirely controls the copying machine  118 . 
   The FAX unit  3006  decompresses compressed image data received through a telephone line, and transfers the decompressed image data to the control unit  3009 . Further, the FAX unit  3006  compresses the image data transferred from the control unit  3009 , and transmits the compressed image data through the telephone line. It should be noted that the compressed image data received by the FAX unit  3006  can be temporarily stored in the HD unit  3008 . 
   The network interface unit  3007  is an interface between LAN  130  and the control unit  3009 . The network interface unit  3007  develops code data (PDL: Page Description Language) representative of an image transferred from LAN  130  into image data which is sent to the control unit  3009  to be printed by the printer unit  3004 . 
   The control unit  3009  is constituted of a CPU  3011 , a ROM  3012 , a RAM  3013  and the like. In accordance with data stored in ROM  3012  and data supplied from other portions, the control unit  3009  controls the data flow to and from the reader unit  3003 , FAX (facsimile) unit  3006 , network interface unit  3007  and HD (hard disk) unit  3008 . 
   The HD unit  3008  including an unrepresented HD, a page memory and the like can store plural sets of image data. Plural sets of image data stored in the HD unit  3008  can be output in the order corresponding to the editing mode designated by the operation unit  3002  of the digital copying machine (main body)  118 . 
   In the present embodiment, an unrepresented optional controller and the control unit  3009  as a main controller for the main body of the digital copying machine  118  can perform data communications with each other via signal lines on the apparatus. The option controller controls various option units such as ADF  2080 , sheet deck  2050 , sorter  2090 , Z folder  2095 , bookbinding unit  2096  and inserter  2091 . The optional controller can access each option unit via a signal line. In accordance with an instruction from the control unit  3009 , the optional controller supplies each option unit with a predetermined command to operate the option unit, issues a predetermined inquiry to receive a response to the inquiry and supplies it to the control unit  3009 . In accordance with the contents of the response from the option unit and in accordance with whether the response is received or not, the optional controller checks the connection state of the option unit, and supplies the check result to the control unit  3009 . The check result includes at least data representative of whether each option unit is not mounted or not, whether the option unit is mechanically and electrically connected, whether the option unit is not electrically connected although it is mechanically connected, whether the option unit is neither electrically nor mechanically connected, and the like. In this example, although the digital copying machine shown in  FIG. 3  has been described mainly, the above-described processes can also be executed for other devices on the network and checked information can be transferred to other devices such as management server and PC via the network. 
   The control unit  3009  can supply information to each device (PC, management server and the like) connected with LAN  130  or WAN constituted of LAN&#39;s  130  and  100  shown in  FIG. 1  via the network interface unit  3007 . Such information includes a residual tone amount, residual transfer sheets of each size, a residual amount of staples, a copying state (open door, sheet jam and the like), a mount/dismount state of each option unit (sorter  2090 , Z folder  2095 , sheet deck  2050  and the like shown in  FIG. 3 ). 
     FIG. 5  is a display screen on a data processing apparatus shown in  FIG. 2 , e.g., of CRT  16  of PC, and illustrates a first network connection. 
   In  FIG. 5 , numeral  301  denotes a main window in which a menu and a tool bar are displayed, icons  301   a  to  301   f  representative of PC&#39;s (including a subject PC and other PC&#39;s) and devices (scanner, printer, fax machine and the like) and representative of functions to be executed by PC&#39;s and devices being displayed on the tool bar. 
   For example, the icon  301   a  is used for executing a copy function of reading image data from the selected scanner and outputting the image data to a selected printer. The icon  301   b  is used for executing a FAX function. 
   The icon  301   c  is used for executing an image data read function. The icon  301   d  is used for executing an OCR processing function by reading image data. 
   The icon  301   e  is used for executing a PC information display function. The icon  301   f  is used for executing a personal tray data display function. Numeral  302  denotes a system display window. 
   In the system display window  302 , icons  302   a  to  302   z  represent PC&#39;s and devices shared by the network shown in  FIG. 1 . These icons represent a device type such as PC, printer, scanner, and FAX modem and a status such as “under processing” and “error”. 
   Symbol  302   a  denotes a root icon, symbol  302   b  denotes a domain the subject apparatus logs in, and symbol  302   c  denotes the subject apparatus. Since the subject apparatus is a specific apparatus, its icon is different from the icons of other PC&#39;s. 
   Those PC&#39;s and devices, which although shared in the network, they are not installed with drivers, have icons such as  302   m  and  302   p  displayed in grey. 
   The icon  302   d  indicates that this scanner is under operation, and the icon  302   n  is added with, e.g., a numeral “3” indicating three jobs are spooled in this printer. 
   The icon  302   z  indicates that although a driver is being installed, the device cannot be used from some reason (such as failure, no toner and not sheet). As above, the connection state and status of all PC&#39;s and devices on the network can be graphically confirmed on the display screen. In this example, although all icons are not shown from the reason of the screen size, the connection state of all PC&#39;s and devices can be confirmed by using a scroll bar SB disposed laterally on the display screen. 
     FIG. 6  is a view showing an example of the structure of combination judgement data stored in the data processing apparatus shown in  FIG. 2 , the data being stored, for example, in the HD  10 . 
   In  FIG. 6 , numeral  601  and  602  denote header segments. The header segment  601  stores the number of registered combination functions, and the header segment  602  stores a comment. 
   Symbol  603   a  to  603   d  denote data of one function. The data  603   a  is first device data, and the data  603   b  is second device data. In this example, the first device data corresponds to a scanner and the second device data corresponds to a printer. This combination may be reversed. The function data  603   c  corresponds to a function (in this example, copy function) which becomes executable when plural devices (in this example, scanner and printer) are virtually combined. The data  603   d  corresponds to a comment. In the present embodiment, the data segments  604   a  to  604   d  correspond to N-th data. 
     FIG. 7  is a view showing an example of a copy function setting screen displayed on CRT  16  of the data processing apparatus shown in  FIG. 2 . This screen is displayed on CRT  16  when the scanner icon is dragged and dropped upon the printer icon shown in  FIG. 5  and this combination function is judged as effective. 
   The reason why such a setting screen is displayed will be described. The devices corresponding to a drag and drop operation on the screen shown in  FIG. 5 , in this example, the scanner and printer, are installed physically remotely and electrically connected by a communication path for data communications. The scanner has as an executable function at least an image input function, whereas the printer has as an executable function at least an image output function. Although these devices are installed physically remotely, the copy function can be executed if the functions of these devices are combined. Namely, by using these devices in combination; the copy function can be executed. For example, an original set by a user on the scanner is read and this read image is transferred via the communication path to the printer to print it out. 
   The setting screen shown in  FIG. 7  is displayed to the operator of the data processing apparatus so that the operator can use the two devices as if they are one integral device. The different contents from those of the setting screen shown in  FIG. 7  are given for a different combination of devices designated through a drag and drop operation. The above-described reason is also applicable to the screens shown in  FIGS. 12 to 14 ,  FIG. 42  and the like to be later described. 
   In  FIG. 7 , numerals  401  and  402  denote magnification factor setting buttons. The button  401  is depressed for an equal magnification, and the button  402  is depressed for a reduction/enlargement, to thereby set a desired magnification factor. 
   Buttons  403  and  404  are used for input/output sheet setting buttons. In response to a depression of the buttons  403  and  404 , a dialog for setting the sheet size and direction is displayed to set the sheet size and direction. A button  405  is used for setting a color mode of an input image td set color, monochrome, grey scale and the like. 
   Numeral  406  denotes a setting content confirmation display segment for displaying the setting contents corresponding to the function designated by a combination of icons, in this example of the copy function, an equal magnification “100%”, a vertical input sheet “A4”, a vertical output sheet “A4”, a color copy and the like being displayed. 
   Ten key buttons  407  set the number of output sheets. As a layout adjusting button  408  is depressed, a dialog for setting a sheet output position, a 2-in-1 output and the like is displayed. 
   A slider  409  is used for setting a desired image density with the mouse  13 . A slider  410  is used for setting a desired image quality with the mouse  13 . 
   A preview segment  411  displays an input size, an output size, and an output enabled area. A button  412  is used for changing input/output devices. When this button  412  is depressed, a dialog box is displayed to set input/output devices desired by a user different from those designated by a drag and drop operation. When a button  413  is depressed, the present copy function is reset and a predetermined standard copy function is set. Numerals  414  and  415  denote a stop button and a copy execution button. 
     FIG. 8  is a view showing an example of an error message displayed on CRT  16  shown in  FIG. 2 . This error message is displayed if the CPU  2  judges from stored judgement information that a combination of icons designated by a user with the mouse on the display screen shown in  FIG. 5  is not effective. 
   In  FIG. 8 , numeral  501  denotes an error message dialog which is displayed when the designated combination is not effective. 
   In the present embodiment, the error message is displayed by judging whether the combination designated by a drag and drop operation is effective or not. Instead, the combination may be judged when the drag operation is performed to inhibit the drop operation. 
     FIG. 9  is a flow chart illustrating an example of a first data processing operation to be executed by the data processing apparatus of the present invention. This flow chart corresponds to the combination function execution operation after the system configuration display processing. This flow chart includes steps S 201  to S 208 . 
   First, at the step S 201  the connection information, use state information, and status information of all PC&#39;s and devices shown in  FIG. 1  shared by the network are acquired. The acquired information is stored in PMEM  3  shown in  FIG. 2 . Next, at the step S 202  the information of a driver installed at the subject apparatus is checked (acquired). At the step S 203 , in accordance with the acquired information, a display screen is displayed on CRT  16  of the subject apparatus to display at the same time the system configuration and system status shown in  FIG. 5 . 
   Next, at the step S 204 , it is checked whether the combination designated with the mouse is effective. For example, the scanner icon  302   d  is dragged and dropped on the printer icon  302   n  with the mouse on the display screen shown in  FIG. 5 . In this case, the copy function is executed. 
   If it is judged at the step S 204  that the combination is not effective, the flow advances to the step S 205  to display the error message on CRT  16  as shown in  FIG. 8 . 
   If it is judged at the step S 204  that the combination is effective, the flow advances to the step S 206  whereat the corresponding function window is displayed. In this example, the copy function setting screen shown in  FIG. 7  is displayed on CRT  16 . 
   Next, it is judged at the step S 207  whether copy function is executed. If the button  414  on the virtual operation panel shown in  FIG. 7  is depressed to enter a copy inhibition instruction, the processing is terminated. 
   If it is judged that a copy execution instruction is entered with the button  415 , the flow advances to the step S 208  to execute a copy operation in accordance with the setting contents to thereafter terminate the processing. Namely, an image of an original set on an actual scanner corresponding to the icon dragged on the display screen shown in  FIG. 5  is input, the input image is transferred via the network to the actual printer corresponding to the dropped icon, the printer prints out an image on a printing sheet by performing a printing operation corresponding to the setting contents entered on the setting screen shown in  FIG. 7 . 
   Second Embodiment 
   In the first embodiment, each PC on the network communicates with each device and acquires device driver information from the device when the power of PC is turned on or at other timings. The connection information and operation status of each device are graphically and virtually displayed by an icon specific to the device in a different display form. The invention is applicable not only to a network system having printers, scanners and the like but also to a system having multi-function devices having at the same time both a printer function and a scanner function, or having these functions and another function (fax function, database function or the like). Such an embodiment will be described hereinafter. 
     FIG. 10  is a view showing an example of device driver information managed by a data processing apparatus according to the second embodiment of the invention. For example, at the initialization time such as at the time when the power of PC is turned on or at the time when an icon is depressed as will be later described, device driver information of a composite device connected with the network, e.g., the digital copying machine  118  managed by devices shown in  FIG. 1  is acquired at PC on the network and stored and managed in PMEM  3  or HD  10 . If a management server managing device driver information is connected with the network, the device driver information is acquired from the management server. 
   Although the description for  FIG. 10  pertains mainly to the digital copying machine  118 , each device on the network has the device driver information such as shown in  FIG. 10 . The device driver information may be acquired directly from PC or each device and managed in PMEM  3  or HD  10  (or management server), and in response to a request from another device, necessary information is read and transferred to the requesting device. 
   In  FIG. 10 , numeral  800  denotes acquired information. Numeral  801  denotes a header segment which stores a driver name, version information and a comment. 
   Numeral  802  denotes a page setting information segment constituted of an original size, an output sheet size, a printing direction, a page layout, a magnification factor, and a stamp. The original size and output sheet size are, for example, A4, A3 and B4. The printing direction is, for example, vertical and horizontal. The page layout is, for example, 1-in-1, 2-in-1, and 4-in-1. The magnification factor is, for example, 100% and 141%. The stamp is, for example, “Corporation Secret” and “Confidential”. 
   In the present embodiment, the digital copying machine  118  has fundamental functions and in additions expansion functions such as a page layout function and a stamp function. In such a case, the page setting information includes information of the fundamental functions as well as information of the expansion functions such as the page layout function and stamp function. If one function has plural selectable candidates (e.g., user selectable candidates such as 2-in-1 and 4-in-1 of the page layout function, user selectable candidates such as “Secret” and “Confidential”), the details of this information are also stored. It is managed that when a user designates each function, the candidates are displayed on the operation panel so that the user can select a desired candidate. 
   Numeral  803  denotes a finish information segment including a printing method, a binding direction, and a sheet discharge method. The printing method includes, for example, a normal printing, a binding printing, a two-face printing, an OHP printing and the like. The binding direction is, for example, vertical and horizontal. The sheet discharge method is, for example, sort, group, and rotation sort. 
   In the present embodiment, the digital copying machine  118  can execute the fundamental functions such as normal printing as well and the expansion functions such as the staple function by the sorter  2090 , sort function, binding function with bookbinding unit  2096  and two-face printing function. In such as case, the finish information segment  803  includes information of the fundamental functions as well as information of the such expansion functions executable by the subject apparatus. It is managed that when a user designates each function, the fundamental functions as well as the expansion functions are displayed on the operation panel so that the user can select a desired function. 
   Numeral  804  denotes a sheet feed information segment constituted of various sheet feed setting information (sheet feed method and OHP printing detail setting). For example, the sheet feed method is to use the cassette  1 , to manually feed sheets, or the like, and the OHP printing detail setting includes a sheet feed port, an intermediate sheet, a sheet type or the like. 
   Numeral  805  denotes a device setting information segment including sheet feed/discharge option information (sheet feed option and sheet discharge option). The sheet feed option is used for setting a sheet feed option unit, and the sheet discharge option is used for setting a sheet discharge option unit. 
   In the present embodiment, the digital copying machine  118  has various option units including the ADF  2080 , sheet deck  2050 , sorter  2090 , Z folder  2095 , bookbinding unit  2096 , inserter  2091  and the like. Therefore, for example, the sheet feed option  805  stores and manages information on each option unit such as the ADF  2080  and sheet deck  2050 , and the sheet discharge option  805  stores and manages information on each option unit such as the sorter  2090 , Z folder  2095 , bookbinding unit  2096 , and inserter  2091 . 
   The device driver information of each device (in this example, device driver information  800 ) is also utilized in order to display a graphical image, function button or the like on CRT when a user designates the network device (in this example, digital copying machine  118 ) corresponding to the device driver information (to be later described with reference to  FIGS. 12 to 14  and the like). 
   As described above, the device driver information is managed for each device. The managed device driver information becomes different for each device, for example, for devices capable of executing the printing function, depending upon whether the devices have the option unit, upon the type of the option unit, and upon the executable functions other than the fundamental functions such as the normal printing. As the device driver information is different, it is obvious that the display contents and form of the visual image, function button or the like to be displayed on CRT in accordance with the device driver information are different for each device. 
   In the first embodiment, the same icons are used for the same type of devices. In the embodiment, data of an icon similar to the appearance of a product of each maker is stored in advance and this icon is displayed. It is therefore possible to discriminate between icons of devices of respective makers. As shown in  FIG. 11 , a maker name and a product name may be displayed near the icon. 
   If the device can used for color, a color mark CM (the details being shown in  FIG. 11 ) is added. 
   Displaying an icon is controlled by device driver information managed in the HD  10  or PMEM  3 . 
   The device driver information uses information of a device mode supported by the device driver. Therefore, even if a maker provide a new device (option unit), the new device can be used at once by installing the device driver of the device. 
     FIG. 11  is a view illustrating a second network connection configuration to be displayed on CRT  16  of the data processing apparatus shown in  FIG. 2 . In the system configuration state display screen shown in  FIG. 11 , like elements to those shown in  FIG. 5  are represented by using identical symbols. 
   In  FIG. 11 , symbols  301   g  to  301   j  denote icons. As the icon  301   g  is clicked with the cursor of the mouse  13 , the display screen is changed to an unrepresented favorite display screen (by dividing the system display window, icons of devices of the system registered as favorite devices frequently used by the subject apparatus user as well as the whole system are displayed). 
   The icon  301   h  is used for changing the system display window  302  to an editing window for registering an icon to the favorite window. The icon  301   i  is used for updating the contents of the system display window  302 . The icon  301   j  is used for stopping the program for displaying the system display window. 
   Symbols  302   g  to  302   u  denote icons corresponding to other PC&#39;s connected with the network. An icon  302   f  corresponds to a composite device, for example, the digital copying machine  118  shown in  FIG. 1 , and is added with a numeral “3” indicating three jobs are spooled presently. The icon  302   f  has a specific icon and a device name different from input/output devices connected with the network devices. 
   Symbols  303   a  to  303   m  denote icons corresponding to input/output devices connected with the network devices. The icons  303   a  to  303   m  are specific icons (icons having very similar appearances to the actual devices connected) identified by the device names to display the connection and operation states thereof. The icon  303   m  with a “cross mark” indicates that the corresponding device cannot be selected because of some failure those icons (in this example, icons  303   a  and  303   f ) corresponding to the devices which although are connected, they are not installed, are displayed in grey. 
     FIGS. 12 ,  13  and  14  show examples of a virtual panel displayed on CRT  16  of the data processing apparatus (e.g. PC) shown in  FIG. 2 . When the scanner icon (e.g.,  302   d ,  303   c  or the like) dragged in the state that the icon  302   f  shown in  FIG. 11  is displayed in an effective state, is dropped on the icon  302   f , the device driver information (e.g., device driver information shown in  FIG. 10 ) and the like acquired from the digital copying machine  118  corresponding to the icon  302   f  and managed in the HD  10  or PMEM  3  are referred to display on CRT  16  an image which a user can visually confirm various option units including the digital copying machine  118  and the sorter  2090 , ADF  2080 , sheet deck  2050 , and inserter  2091  connected with the digital copying machine  118 . Namely, the displayed virtual operation panel changes with the types of icons subjected to a drag and drop operation (i.e., a combination of plural devices as one selected group). In  FIGS. 12 to 14 , like elements to those shown in  FIG. 7  are represented by using identical symbols. 
   Symbols B 1  to B 8  shown in  FIGS. 12 to 14  denote function buttons disposed in a predetermined display area of the setting screen (operation panel) and capable of being selected by a user with the mouse  13  or the like. The buttons B 1  to B 6  are operation buttons specific to the digital copying machine  118  (i.e., buttons for setting the expansion functions of the digital copying machine  118  different from the fundamental functions such as the normal printing). The buttons B 1  to B 6  are buttons approximately equal to those in the operation panel for the digital copying machine  118 . The button B 1  is designated with the cursor when the page layout mode (e.g., including a node of forming image data of plural pages on one side of one recording sheet: layout modes including an n-in-1 mode such as 2-in-1 and 4-in-1 and a 1-to-N mode of outputting one image to plural recording sheets) is to be set. In a default state, the sheet size is “A4”, and the output image corresponding to the laterally written output is displayed (refer to an image visually expressing an output sheet displayed in a display area above the buttons B 1  to B 4 ). 
   The button B 2  is depressed by a user when the two-face printing mode is designated. The button B 3  is depressed when the bookbinding mode is to be performed. The button B 4  is depressed when the OHP printing mode is to be performed. The button B 5  is depressed when the staple mode is to be designated as the sheet discharge option of the digital copying machine  118 . The button B 6  is depressed when the stamp output mode is to be performed to output stamp information to be added to the output image, e.g., output an image such as an image of “Secret” superposed upon an output image (e.g., a mode of forming an input original image together with additional image such as an image of “Secret” on a recording sheet). 
   The functions to be set by these buttons B 1  to B 6  are the expansion functions possessed by the digital copying machine  118  (in this example, although six expansion functions of the digital copying machine  118  are displayed, if there are more expansion functions, they are also displayed in the display area to allow the user to select a desired one). 
   The button B 7  is depressed for setting a fun setting mode of executing a function executable by PC and not possessed by the digital copying machine  118  (a PC function executable by PC). In the present embodiment, the fun setting mode includes two modes, an image effect setting mode and a stamp setting mode. As a user depresses the button B 7 , the display screen is changed to a setting screen for setting these two modes. The button B 8  is depressed when the copy mode setting is to be reset to the standard mode. 
   As described above, in the present embodiment, the setting screen for setting a function executable by a device such as the digital copying machine  118  installed remotely from the subject apparatus can be displayed on CRT  16  of the subject apparatus. In addition, for example, even if there are plural printers having the printing function connected with the network, the expansion functions possessed by the devices can be displayed in a discriminable manner without uniformly displaying the display contents and forms of the setting screen of these devices. Namely, if the expansion functions of even those devices having the printer function are different, the contents to be displayed by using the buttons B 1  to B 6  of the setting screens shown in  FIGS. 12 to 14  become different. 
   The buttons for allowing a user to set the expansion functions of a device such as the digital copying machine  118  installed remotely from the subject apparatus and the buttons for allowing the user to set the function executable at the subject apparatus (PC) can be all disposed and displayed in the predetermined display area of one setting screen. It is possible for the user to select a desired function. 
   Therefore, not only processing can be executed by using the devices designated by a drag and drop operation on the display screen shown in  FIGS. 5 and 11  and the like, but also combination processing (composite processing) added with an image processing at the computer (PC) of the user side can be requested to the system and executed. Further, a user is not required to perform a cumbersome and complicated operation such as setting a digital copying machine on the setting screen of the digital copying machine, then setting the PC side on the PC setting screen, and then combining the above settings on a different display screen. The user can execute all desired settings by using one display screen without being conscious about the execution of different functions for plural devices. 
   In the operation panel displayed on CRT  16  shown in  FIG. 13  or  14 , PV 1  and PV 2  denote preview areas in which as an effect image to be selected by the PC fun setting to be described later, in the present embodiment, “mosaic” is selected, and as the stamp, “secret” is selected. 
   It is assumed that the resolution indicated by the slider  410  is automatically set to a half of the maximum resolution of a selected output device by considering the traffics of image data to be transferred on the network, and the resolution same as the automatically set resolution or near to it is automatically set as the resolution of an input device. 
   Therefore, in the display screen shown in  FIG. 12 , although the maximum resolution of a color copying machine is “600 dpi”, the input resolution of a color scanner is set to a half of the printer resolution, i.e., “300 dpi”. 
   Similarly, a resolution of, for example, about a half of the read resolution set to a scanner corresponding to the dragged icon is automatically set. It is possible to increase or lower the resolution in response to a user request. 
   MFI displayed in a display area above the display area for the buttons B 5  to B 8  is a system image. If the scanner icon is dropped on the icon  302   f  by a user with the mouse  13  or the like while it is displayed in an effective state on the display screen of  FIGS. 5 and 11 , then the CPU  2  of the apparatus confirms the device driver information (e.g., device driver information  800  shown in  FIG. 10 ) acquired from the device corresponding to the icon, i.e., the digital copying machine  118 , and managed in the HD  10  or PMEM  3 . In accordance with this confirmation, image data expressing the detailed appearances of the whole image forming system including option units is displayed as the image MFI on CRT  16  in order to visually confirm the digital copying machine  118  and various option units connected with the main body of the digital copying machine  118  such as the sorter  2090 , ADF  2080 , sheet deck  2050 , and inserter  2091 . It is assumed that an automatically selected sheet feed unit among sheet feed units in the image MFI is displayed so as to be discriminated from other sheet feed units. 
   Each device has, as described earlier, the device driver information managed by the data processing apparatus to be used also for displaying the image MFI data displayed on the operation panel shown in  FIGS. 12 to 14 . The data processing apparatus manages the device driver information in a manner capable of discriminating the device driver information. 
   If the network has a digital copying machine of the same model as the digital copying machine  118  and it has no sorter and sheet deck, the device driver information of the device is different from that of the digital copying machine  118 . The image MFI data to be displayed on the operation panel of PC corresponding to the device is only the main body of the digital copying machine  118  and the image data showing the appearances of a sorter, a sheet deck and the like of the digital copying machine  118  is not displayed. If a sorter is connected and a sheet deck is not connected, image data showing the appearances of the device main body and sorter is displayed as the image MFI. If a new sheet deck is installed, the device driver information of the device is updated, and image data showing the appearances of the device main body, sorter and sheet deck is displayed as the image MFI. 
   As described above, in the present embodiment, even for devices (e.g., image forming apparatus) of the same type, depending upon whether an option unit is connected with the device, the display form of the image MFI to be displayed on the operation panel shown in  FIGS. 12 to 14  and the like is made different for each device, and also depending on the type of a connected option unit, the display form is made different for each device. In this manner, the CPU  2  controls the display operation. 
   In the example described with  FIGS. 12 to 14  and the like, in response to designation of a combination of a scanner and a digital copying machine on the display screen shown in  FIG. 5  or  11 , the device driver information of the digital copying machine is derived. In accordance with the derived device driver information, the display form on the operation panel shown in  FIGS. 12 to 14  is determined. This is because the functions of the digital copying machine include also the functions of the scanner. Therefore, for example, if the scanner icon is not dropped on the icon  302   f  of the digital copying machine on the display screen of  FIG. 11  or the like but it is dropped on the printer icon (e.g.,  303   h ), the display contents and forms are determined in accordance with the device driver information of both the scanner and printer managed in the HD  10  or PMEM  3 . In such a case, for example, image data showing the appearance of the digital copying machine main body not connecting an option unit such as ADF is displayed as the image MFI. 
   Icons  403   a  and  404   a  are used as buttons for setting input/output sheet sheets. In response to depression of the icon  403   a ,  404   a , a dialog (e.g.,  FIG. 17  to be described later) for setting the sheet size, sheet direction and the like is displayed to allow detail settings including the sheet size, sheet direction, color/monochrome mode and the like. 
     FIG. 15  shows an example of a first window displayed on the virtual operation panel on CRT  16  of the data processing apparatus shown in  FIG. 2  when the fun setting is initiated. This first window is displayed, for example, when a user selects “effect” on an unrepresented menu screen to be displayed when the user depresses the button B 7  shown in  FIG. 14  or the like. 
   In  FIG. 15 , numeral  811  denotes an original image input from a scanner. Numerals  811 - 1  to  811 - 8  denote effect images. The effect image  811 - 1  is a color reversed image, the effect image  811 - 2  is an embossed image, the effect image  811 - 3  is a mosaic image, the effect image  811 - 4  is a posterization image, the effect image  811 - 5  is a soft-focussed image, the effect image  811 - 6  is a sharpened image, the effect image  811 - 7  is an oil painted image, and the effect image  811 - 8  is a noise-added image. The effect image  811 - 3  is presently selected and the mosaic image is displayed in the preview area PV 1  on the virtual operation panel shown in  FIG. 13 . If a button  811 - 9  is depressed, the selected effect can be established, or if a button  811 - 10  is depressed, the selected effect can be cancelled. 
   The effect processing is executed by an image software application of PC which performs a predetermined image processing calculation of scanner image data. 
   For example, consider the example shown in  FIG. 11  and  FIGS. 12 to 14 . An image of an original set to a scanner corresponding to an icon dragged on the display screen shown in  FIG. 11  is acquired by the scanner. The data processing apparatus receives the image from the scanner via the network. PC processes the image data supplied from the scanner so as to execute the effect processing corresponding to an effect candidate selected by the user on the window shown in  FIG. 15 . The image data processed by PC is transferred via the network to the digital copying machine  118  corresponding to the icon  302   f  to print the image on a recording sheet at the digital copying machine  118 . 
     FIG. 16  shows an example of a second window displayed on the virtual operation panel on CRT  16  of the data processing apparatus shown in  FIG. 2  when the fun setting is initiated. This second window is displayed, for example, when a user selects “stamp” on an unrepresented menu screen to be displayed when the user depresses the button B 7  shown in  FIG. 14  or the like. 
   In  FIG. 16 , numerals  821  and  822  denote buttons which are used for selecting or cancelling a stamp (displayed in reversal) selected in a stamp list  824 . A button  823  is used for displaying a help screen for the stamp processing. 
   Symbols  826 X and  826 Y denote sliders which can set a stamp position in an output sheet independently for X- and Y-directions. In the example shown, stamp information  825  is set at the center of the output image. 
   Stamp information registered in the stamp list can be newly added or deleted. Namely, printing data of stamp information desired by a user and formed by an application or the like, image data input from a scanner, or a combination thereof, are stored and managed in the HD  10  or the like. The stamp processing is executed by a function of PC not by a function of a copying machine. Similar to the effect processing, the data processing apparatus (PC) executes the stamp processing and stamp image data is transferred to the digital copying machine  118  to form a stamp image. 
     FIG. 17  shows an example of a property window displayed upon operation of an icon displayed on the virtual operation panel on CRT  16  of the data processing apparatus shown in  FIG. 2 . The property window is displayed, for example, in accordance with the device driver information of the input and output devices acquired through a drag and drop operation of the icon  403   a  shown in  FIG. 14  or the like. 
   In  FIG. 17 , numeral  830  denotes a property window through which various image input conditions of, for example, a scanner, can be set flexibly. In this example, a sheet size  831  is set to A4, a mode  832  is set to black and white, a resolution  834  is set to FAX 200 dpi. Numerals  833 ,  835  and  836  denote sliders. The slider  833  is used for setting a gradation threshold value, the slider  835  is used for setting a contrast, and the slider  836  is used for setting a brightness. Numerals  837  and  838  denote buttons. The button  837  is used for establishing the set contents, and the button  838  is used for cancelling the set contents. 
     FIG. 18  shows an example of a resource file of device drivers to be managed by the data processing apparatus of the second embodiment of the invention. For example, at the initializing processing such as when a power of PC is turned on or at the time of designation by an icon to be described later, this resource file of each device is displayed which is acquired and integrally managed by an unrepresented management server connected with the network. 
   In  FIG. 18 , numeral  800  denotes acquired information, numeral  801  denotes the header segment in which a driver name, version information and a comment are stored. 
   Numeral  802  denotes the page setting information segment constituted of resource offset information and page information (original size, output sheet size, printing direction, page layout, magnification factor, and stamp). For example, the original size and output sheet size are A4, A3, B4 or the like, the printing direction is vertical, horizontal or the like, the page layout is 1-in-1, 1-in-1 or the like, the magnification factor is 100%, 141% or the like, the stamp is “Secret”, “Confidential” or the like. 
   Numeral  803  denotes the finish information segment constituted of resource offset information, a printing method, a binding direction, and a sheet discharge method. For example, the printing method is a normal printing, bookbinding printing, two-face printing, OHP printing or the like. The binding direction is vertical, horizontal or the like. The sheet discharge method is sort, group, rotation sort or the like. 
   Numeral  804  denotes the sheet feed information segment constituted of resource offset information and various sheet feed setting information (sheet feed method, OHP printing detail setting). For example, the sheet feed method is to use a cassette, to manually feed sheets, or the like. The OHP printing detail setting is a sheet feed port, an intermediate insertion sheet, a sheet type or the like. 
   Numeral  805  denotes the device setting information segment constituted of resource offset information and sheet feed/discharge option information (sheet feed option, sheet discharge option). For example, the sheet feed option means a sheet feed option unit, and the sheet discharge option means a sheet discharge option unit. 
   Numeral  806  denotes a resource data segment stored in which is specific image information (image components) including various icon image data for displaying the system configuration of devices. The resource data capable of being updated stored in the resource data segment  806  is used for displaying the system configuration state display screen shown in  FIGS. 5 and 11  and  FIG. 33  or the like to be later described, and the display screens shown in  FIGS. 12 to 14 , and the like. 
   Even if the functions of a composite device on the network are expanded by connecting a new option unit, a virtual operation panel or buttons representative of the expanded functions can be displayed flexibly by acquiring the newest resource file from the management server (refer to the display screens of  FIGS. 12 to 14  and the like. 
     FIG. 19  shows an example of an editing window for editing buttons to be displayed on the virtual operation panel shown in  FIGS. 12 to 14  and the like. This editing window is displayed on CRT  16  so that a user can select a candidate for an expansion function to be displayed as a function button on the virtual operation panel shown in  FIGS. 12 to 14  and the like, and can designate the layout order of function buttons. 
   In  FIG. 19 , numeral  850  denotes an editing window. In this window, a button to be displayed is selected from a function button group displayed in a function list area  81 , and moved to a display function area  852  by using shift buttons  853  and  854 , or alternatively a button is moved from the display function area  852  to the function list area  851 . In this manner, displayed buttons can be edited. 
   Numeral  855  denotes a button layout display area. Buttons B 1  to B 6  shown in  FIG. 12  or the like to be displayed are arranged in the order a user selected (the order can be arranged with the mouse or the like). This editing window is initiated when an editing program is read from the HD  10  in response to depression of an unrepresented editing button to be displayed on the virtual operation panel. 
   After buttons desired to be displayed are edited, a desired button to be displayed is established or cancelled by using buttons  856  and  857 . 
   Data processing will be described. This data processing is executed by the CPU  2  shown in  FIG. 2  in accordance with a program stored in the HD  10  or the like. 
   First, display/non-display is designated by the shift buttons  853  and  854  on the editing window  850 , and the selected button is moved from the function list area  851  to the display function area  852  or vice versa. 
   Next, when a change designation of the button layout is effected on the button layout display area  855  of the editing window  850 , the layout of buttons on the button layout display area  855  is changed in accordance with the change designation. 
   Next, when a setting designation is effected by the button  857  of the editing window  850 , the setting on the editing window  850  is acquired and stored as setting function button layout information in the HD  10  or the like shown in  FIG. 2  to thereafter close the editing window. 
   When a cancel designation is effected by the button  856  of the editing window  850 , a setting designation on the editing window  850  is cancelled to thereafter close the editing window. 
   Candidates for the buttons B 7  and B 8  may be displayed on the editing window  850  together with candidates for the buttons B 1  to B 6 . The user selects a candidate to be displayed as a function button on the virtual operation panel shown in  FIGS. 12 to 14  and the like, from the displayed candidates, to determine the layout order. 
   As described above, according to the present embodiment, a function button (e.g., button B 7 ) and a function button (e.g., buttons B 1  to B 6 ) can be displayed on one virtual operation panel (refer to  FIGS. 12 to 14 ) in the order desired by a user. The function button (e.g., button B 7 ) corresponds to a function executable by the subject apparatus (PC), and the function button (e.g., buttons B 1  to B 6 ) corresponds to an expansion function executable by another device (in the present embodiment, digital copying machine  118 ) installed remotely from the subject apparatus (PC). Obviously, it is possible to display only the function button corresponding to the expansion function executable by the remotely installed device or to display only the function button corresponding to the function executable by the subject apparatus. It is also possible for a user to determine whether the function button is displayed on the virtual operation panel, or if there are plural candidates for function buttons capable of being displayed, to determine the candidates to be displayed on the virtual operation panel shown in  FIGS. 12 to 14  and the like and the layout order of these candidates. It is therefore possible for each client to display on its PC the function setting display screen in the display form desired by the client. 
   With the above processes, the function buttons (B 1  to B 8  shown in  FIGS. 12 to 14 ) in a predetermined area on the virtual operation panel can be edited (layout order and display/non-display) by using the editing window  850  shown in  FIG. 19 . The function can therefore be set more easily. 
   Third Embodiment 
   In the above-described embodiment, it was explained the case where the desired function processing is performed by the drag-and-drop operation for the virtually displayed icons of the scanner and the printer or of the scanner and the multifunctional device. However, the management server on the network can sequentially manage the information concerning a resource remaining quantity for each printer by managing such the combined function or a log for each device. Thus, log information is acquired when a log demand is issued from the PC on the network or when the function is executed, whereby it is possible to display whether or not the set function can be executed or to effectively use the log information for each device. Hereinafter, the third embodiment will be explained. 
     FIG. 20  is a view showing an example of the log information managed by a data processing apparatus according to the third embodiment of the present invention. In the present embodiment, either of PC&#39;s on the network shown in  FIG. 1  is registered as the management server, and the registered management server manages the function log information. 
   In  FIG. 20 , numeral  860  denotes the function log information which is composed of a header segment  861  and function log information segments  862 - 1  to  862 -N. 
   Numeral  863  denotes a segment which corresponds to a function (e.g., a copying function) capable of using the network device. In the segment  863 , discrimination information of the copying function is set. Numeral  864  denotes a segment which corresponds to the number of registered binds. The number of binds is the value which is counted every time a bind function is executed. Numeral  865  denotes a segment which corresponds to a scanner ID (identification). In the segment  865 , a device ID corresponding to the dragged and dropped icon (scanner) on the network is set. Numeral  866  denotes a segment which corresponds to a printer ID. In the segment  866 , a device ID corresponding to the dragged and dropped icon (printer) on the network is set. 
   Numeral  867  denotes a segment which corresponds to the number of uses. In the segment  867 , the number of copying operations based on the identical combination is accumulatively counted and set. Numeral  868  denotes a segment which corresponds to a comment. 
   When the function execution is started by using the icon dragged and dropped by the user who operates the PC on the network, the function log information is notified to the management server and stacked on the HD in this server. 
   Further, according to an acquirement demand from the user on the network, the function log information managed by the management server is read and transferred to the demand sender&#39;s PC. The transferred function log information is maintained or subjected to data processing and then displayed in a list form or a visual form on the demand sender&#39;s PC. 
     FIG. 21  is a view showing an example of the log information managed by the data processing apparatus according to the third embodiment of the present invention. In the present embodiment, either of PC&#39;s on the network shown in  FIG. 1  is registered as the management server, and the registered management server manages the device log information. 
   In  FIG. 21 , numeral  870  denotes printer log management information which is composed of a header segment  871  and printer log information segments  872 - 1  to  872 -M. It should be noted that symbol M denotes the number of discriminating printers on the network. 
   Numeral  873  denotes a segment which corresponds to a printer name. In the segment  873 , the printer name determined based on the device driver information is automatically set. Numeral  874  denotes a segment which corresponds to the number of logs. In the segment  874 , the value N1 which is obtained by accumulatively counting the number of logs in the printer is set. Numeral  875  denotes a segment which corresponds to a comment. Numerals  876 - 1  to  876 -N denote segments which correspond to log detail information. In the segments  876 - 1  to  876 -N, input information (an application name or the like), the number of total printing pages, a preset sheet size, a longitudinal size of non-preset sheet, a lateral size of non-preset sheet, color printing/monochrome printing, one face/two faces, a toner use quantity, and the like are set. The toner use quantity is set based on toner use quantity information notified by the printer every time a printing job by the printer ends. Each log information is occasionally updated and managed in the HD of the management server. 
   Therefore, every time each printer on the network executes the job, latest log information is updated. Thus, when the printer function or the copying function is executed on the PC of the network, the log information might be used as judgment information to judge whether or not the set job can be executed with the current toner quantity. Therefore, when a command to demand the printer log management information is received from the PC on the network (e.g., when the user&#39;s operation to drag and drop the scanner icon to the printer icon to execute the copying function is issued as the key to the management server), the management server notifies the printer log management information managed based on ID (the printer name) of the designated icon, to the PC of the demand sender. 
     FIGS. 22 ,  23 ,  24  and  25  are views showing examples of the log information managed by the data processing apparatus according to the third embodiment of the present invention. In the present embodiment, either of PC&#39;s on the network shown in  FIG. 1  is registered as the management server, and the registered management server manages the log information for each job. 
     FIG. 22  shows job information which is managed when a FAX function job is executed and corresponds to log item information in a reception folder. Concretely, a sender, a FAX number, date, a reception result, a reception time, a reception page, error information, resolution, a compression system and the like are managed as the log information by the management server. 
     FIG. 23  shows job information which is managed when the FAX function job is executed and corresponds to log item information in a transmission-end folder. Concretely, a receiver, a FAX number, date, a transmission result, a transmission time, the number of trials, a document name, the number of receivers, a transmission page, error information, a belonging of a receiver, a comment, resolution, a compression system, a server reception time, a sender, a sender&#39;s PC and the like are managed as the log information by the management server. 
     FIG. 24  shows log information of the scanner on the network shown in  FIG. 1 . The log information which includes items of user name, scan start time, scan end time, the number of total scan pages, machine name, TWAIN driver name, sheet size, height of sheets, width of sheet, color/monochrome and the like is notified to the management server, when the job using the scanner is executed. Then the notified log information is managed on the HD of the management server and read from the HD according to the log information demand from the user of the PC on the network, and the read log information is displayed on a display apparatus of the PC or the management server of the demand sender. 
     FIG. 25  shows log information of the printer on the network shown in  FIG. 1 . The log information which includes items of user name, printing start time, printing end time, the number of total printing pages, machine name, printer driver name, application name, the number of designated prints, preset sheet size, non-preset sheet longitudinal size, non-preset sheet lateral size, color/monochrome, one face/two faces, toner use quantity and the like is notified to the management server, when the job using the printer is executed. Then the notified log information is managed on the HD of the management server and read from the HD according to the log information demand from the user of the PC on the network, and the read log information is displayed on a display apparatus of the PC or the management server of the demand sender. 
   The toner use quantity data detected or calculated at the printer side is set as the toner use quantity. 
   &lt;Explanation of Data Processing Procedure&gt; 
   Hereinafter, the data processing procedure in the data processing apparatus according to the fourth to tenth embodiments of the present invention will be explained. The processing of the later-described fourth to seventh embodiments is executed by the CPU  2  on the basis of a program stored in the HD  10  of  FIG. 2  or a not-shown storage medium. 
   Fourth Embodiment 
     FIG. 26  is a view showing relation between the data processing apparatus registered as the management server and a client device, in the data processing apparatus according to the present invention. 
   In  FIG. 26 , numerals  1501 ,  1510  and  1513  denote client apparatuses. Numerals  1502 ,  1511  and  1514  denote server device information (later-described  FIG. 30 ), and numerals  1503 ,  1512  and  1515  denote client device information (later-described  FIG. 31 ) which are all stored in the HD  10  of  FIG. 2 . 
   The server device information  1502  ( 1511 ,  1514 ) is composed of information (1. shared device; 2. information) of the devices shared on the network and information (3. non-shared device; 4. information) of the devices not shared on the network, acquired according to the device driver information installed in the user&#39;s own apparatus, and managed in a client program in the client apparatus  1501  ( 1510 ,  1513 ). 
   Numeral  1504  denotes a management server which stores and manages management server device information  1505  (later-described  FIG. 27 ) in the HD  10  of  FIG. 2 . Numerals  1506  and  1508  denote non-client apparatuses in which a server program, a client program, programs represented by later-described flow charts, and the like are not installed. The non-client apparatuses  1506  and  1508  store device information  1507  and  1509 , respectively. 
   The client device information  1503  ( 1512 ,  1515 ) is composed of the server device information, the device information of the client apparatus effective or available on the network, and the device information of the non-client apparatus, acquired by the management server and the non-client apparatus, and managed by the client program in the client apparatus  1501  ( 1510 ,  1513 ). 
     FIG. 27  is a view for explaining the management server device information  1505  shown in  FIG. 26 . 
   As shown in  FIG. 27 , the management server device information  1505  is composed of header information  1601 , an index table  1602 , and device information (client PC device information data)  1603 - 1  to  1603 -N of the client apparatuses effective or available on the network. 
   Each of elements [0] to [N−1] in the index table  1602  is composed of a data offset, a data size and a flag. The elements [0] to [N−1] correspond to the device information  1603 - 1  to  1603 -N, respectively. 
   Further, each of the device information (client PC device information data)  1603 - 1  to  1603 -N of the client apparatuses is composed of PC information  1604  (later-described  FIG. 28 ), printer information  1605  (later-described  FIG. 28 ), scanner information  1606  (later-described  FIG. 29 ), and FAX board information  1607  (later-described  FIG. 29 ). 
   Further, the device information  1603 - 1  to  1603 -N of the client apparatuses correspond to the information (1. shared device; 2. information) of the device shared on the network which is acquired from the server device information  1502 ,  1511  and  1514  shown in  FIG. 26 . 
     FIG. 28A  is a view for explaining in detail the PC information  1604  shown in  FIG. 27 , and  FIG. 28B  is a view for explaining in detail the printer information  1605  shown in  FIG. 27 . 
   The PC information  1604  is composed of information and content, as shown in  FIG. 28A . 
   The printer information  1605  is composed of information, content and an acquirement method, as shown in  FIG. 28B . 
     FIG. 29A  is a view for explaining in detail the scanner information  1606  shown in  FIG. 27 , and  FIG. 29B  is a view for explaining in detail the FAX board information  1607  shown in  FIG. 27 . 
   The scanner information  1606  is composed of information, content and an acquirement method, as shown in  FIG. 29A . 
   The FAX board information  1607  is composed of information, content and an acquirement method, as shown in  FIG. 29B . 
     FIG. 30  is a view for explaining the server device information  1502 ,  1511 ,  1514  shown in  FIG. 26 . In  FIG. 30 , it should be noted that the same content as that in  FIG. 27  is added with same explanation. 
   In  FIG. 30 , numeral  1701  denotes local device information (or local device information data) which represents the devices locally connected with the user&#39;s own apparatus. The structure of the local device information  1701  is the same as that of the device information  1603 - 1  to  1603 -N of the client apparatus shown in  FIG. 27 . 
   As shown in  FIG. 30 , the server device information  1502  is composed of the header information  1601 , the index table  1602  and the local device information  1701 . 
     FIG. 31  is a view for explaining the client device information  1503  ( 1512 ,  1515 ) shown in  FIG. 26 . In  FIG. 31 , it should be noted that the same content as that in  FIG. 27  is added with same explanation. 
   As shown in  FIG. 31 , the client device information  1503  is composed of the header information  1601 , the index table  1602 , the local device information  1701 , the device information (client PC device information data)  1603 - 1  to  1603 -N−1 of the client apparatuses effective or available on the network, the device information  1507  of the non-client apparatus  1506 , and the device information  1509  of the non-client apparatus  1508 . 
   The structure of the printer information in each of the device information  1507  and  1509  of the non-client apparatuses  1506  and  1508  is the same of that of the printer information  1605  shown in  FIG. 28 . As the printer information, only a shared name and a server name are set. 
     FIG. 32  is a flow chart showing an example of a second data processing procedure in the data processing apparatus according to the present invention. The second data processing procedure corresponds to a combination function processing procedure according to a system structure display processing. 
   First, in a step S 301 , the domain information to which the user&#39;s own apparatus belongs is acquired, the address of the management server (either of PC&#39;s on the network shown in  FIG. 1  is registered as the management server), and the connection information of all the PC&#39;s and the peripheral devices of  FIG. 1  shared on the network and use conditions and status information of these devices are acquired from the management server. At this time, also the device information (the management server device information  1505  shown in  FIG. 26 ) which has been installed in other PC (i.e., managed by the management server) is acquired. The acquired information is stored and managed in the PMEM  3  shown in  FIG. 2 . Next, in a step S 302 , the device information (the server device information of  FIG. 30 , the information of  FIG. 10  or the like) which has been installed (managed) in the user&#39;s own apparatus is checked (acquired). At this time, the device information acquired from the management server is compared with the device information installed in the user&#39;s own apparatus to specify the device of which driver information is not installed in the user&#39;s own apparatus. 
   The management server always monitors the connection information of all the PC&#39;s and the peripheral devices of  FIG. 1  shared on the network and the use conditions and status information of these devices. Thus, when status of the PC or the peripheral device on the network changes, the management server notifies latest system information (the connection status, the user condition and the status of each device on the network) to each client through the LAN&#39;s  100 ,  120  and the like. 
   In a step S 303 , the PC&#39;s and the peripheral devices are displayed on the basis of the acquired information. Namely, a system structure status screen for simultaneously displaying the system structure and the system status shown in  FIG. 11  is displayed based on the client device information shown in  FIG. 31 . At this time, each peripheral device is represented by a device name and an inherent icon (i.e., a icon highly close to the actual appearance of the device body to be connected (the icon representing the function including monochrome/color information)) specified by the device name, on the basis of the acquired information and the resource data of the resource data segment  806  of  FIG. 18  stored in the HD  10 . Such the icon is displayed on the CRT  16  together with the connection status and the operation status (including the number of currently spooled jobs, and visual or numerical information representing a unusable status). Also, at this time, the icon which corresponds to the device not installed in the user&#39;s own apparatus is displayed in gray. 
   Next, in a step S 304 , when execution of each function is instructed, it is judged whether or not such an instruction is effective. For example, on the screen shown in  FIG. 11 , the scanner icon  303   c  is dragged to and dropped on the digital copying machine icon  303   f  by using the mouse to execute the copying function. 
   If judged that the combination is not effective (e.g., a combination of the scanner and the scanner, a combination of the printer and the printer, or the like), the flow advances to a step S 305  to display the error message as shown in  FIG. 8 . 
   Conversely, if judged in the step S 304  that the combination is effective (e.g., a combination of the scanner and the printer, a combination of the scanner and the copying machine, a combination of the scanner and the PC, a combination of the scanner and the FAX unit, a combination of the PC and the printer, a combination of the PC and the PC, a combination of the FAX unit and the FAX unit, or the like), the flow advances to a step S 306  to display a corresponding-function window such that the function executable by combining the devices can be set as well as the function executable by each device. In the present embodiment, the virtual operation panels shown in FIGS.  12  to  14  are displayed. 
   Next, it is judged in a step S 307  whether or not the copying is to be performed. When it is instructed to stop the copying, the processing ends. Conversely, when the button  415  on the virtual operation panels shown in  FIGS. 12 to 14  is depressed to instruct the copying, the flow advances to a step S 308  to perform the copying according to the setting. When the processing is performed, the function window is closed, and the displayed content returns to the system structure status screen for simultaneously displaying the system structure and the system status shown in  FIG. 11 . 
   Next, in a step S 309 , the status that the processing is being performed (the copying processing is being performed in this case) is image-displayed on the screen for simultaneously displaying the system structure and the system status shown in  FIG. 11 . The display continues until the processing ends (step S 310 ) (see later-described  FIG. 33 ), and the processing ends. 
     FIG. 33  is a view showing an example of a copying function execution screen of the data processing apparatus according to the fourth embodiment of the present invention. It should be noted that the same parts as those in  FIG. 11  are added with same numerals and symbols, respectively. 
   In  FIG. 33 , numeral  900  denotes function in-execution (i.e., function is being executed) display which represents that the image read by the scanner of the icon  303   c  is being printed now by the printer of the icon  302   f , by displaying the icons  303   c  and  302   f  in a manner different from other icons and further displaying as an image a network path with an arrow of fat chain line. When the scanner icon  303   c  is dragged and dropped on the digital copying machine icon  302   f  by using the mouse on the operation screens shown in  FIGS. 12 to 14  to instruct the copying function execution, the function in-execution display  900  continues until the copying processing ends. 
   By the above processing, the device on the network is displayed with the icon highly close to the actual appearance of the device body, the icon representing the function including monochrome/color information, and the number of currently spooled jobs, whereby it is possible to easily select the optimum device on the network. Besides, after the processing execution for the selected device is instructed, the status that the processing is being performed is displayed as the image such that the user can grasp the data transfer status among the selected input and output devices on the network, whereby it is possible to visually confirm the used input and output devices and processing end timing. 
   As described above, in the present embodiment, the data processing apparatus which can perform the data communication with the various peripheral devices (the printer, the FAX machine, the digital copying machine, the scanner, the digital camera, the modem, etc.) including the PC&#39;s connected on the data communication paths such as the LAN&#39;s  100  and  120  shown in  FIG. 1  is provided. The data processing apparatus acquires, e.g., the device driver information of  FIG. 10 , the device information of  FIG. 26 , the status information of each peripheral device, the connection information of the peripheral devices, the use condition of the peripheral device, the resource data of  FIG. 18  and the like, through the management server or directly from the various peripheral devices by the communication with them. Then, on the basis of the acquired information, the information managed in the user&#39;s own apparatus, and the like, the data processing apparatus displays together with the data communication path the image on one screen (e.g., screen of  FIG. 5 ,  11  or  33 ) of the CRT  16 , such that the user can confirm as the visible image whether the device having what function exists on the system (i.e., the kind of device), by which maker the device was manufactured (in case where there are plural makers), and how the device is connected and disposed on the communication path. Besides, the data processing apparatus displays on the screen of the CRT  16  the icons which were classified for the function of the devices actually connected with the path. On the screen, the shape of the visible image of the icon represents the actual appearance of the device. Further, the data processing apparatus determines arrangement or layout of the image of the communication path and the respective icons on the screen according to the actual connection status of them, and disposes and displays the path and the icons on the screen such that the user can visually confirm the connection status of the devices and the data communication path. In this case, the arrangement status of the image representing the communication path and the icons is made near to the actual system as much as possible. For example, in the actual system, when one printer is connected with the communication path through the scanner and the PC, the status that the scanner icon and the PC icons are interposed between the image of the communication path and the printer icon is displayed on the screen of the CRT  16 . Further, for example, in the actual system, when one printer is directly connected with the communication path without using the device such as the PC, the status that any device icon is not interposed between the image of the communication path and the printer icon (i.e., the communication path image and the printer icon are directly connected with each other) is displayed on the screen of the CRT  16  (see the screen shown in  FIG. 11 ). Thus, the user can confirm as the visible image on the screen shown in  FIG. 11  or the like whether the device having what function (type) is connected with the communication path, whether or not the device is connected with the path through other device, what other device interposed is in case of connecting the device with the path through other device, and the like. 
   The shape of the icon classified for each function is made different from that for other function. Besides, the displayed icon shape is made different for each maker and each kind of device even if the plural kinds of devices have an identical function. Further, on the screen, the operation status that, e.g., three jobs are spooled now is displayed nearby the icon, the status that the color mark or the like is added to the corresponding to the icon is displayed when the device can cope with color processing. Further, when the device connected with the communication path and existing on the system is shared on the network but does not have any installed driver software, the icon of the corresponding device is displayed in gray on the screen so as to make the displaying status of the icon of the corresponding device different from other icons. In this case, before the screen is displayed, it is judged in the data processing apparatus whether or not driver software has been installed in each of the plural devices shared on the network. When the device in which the driver software is not installed exists, such the device is specified. Further, when the device in which the driver software has been installed but which can not be selected (used) due to some troubles (e.g., no sheet, no toner, breakdown, etc.) exists, the impossibility mark or the like is added on the icon of the corresponding device and such the status is displayed (see  FIG. 11 ). 
   When the user performs the drag-and-drop operation of the icon on the system structure status screen of  FIG. 5  or  11  displayed on the CRT  16  by using the cursor or the like, an arbitrary combination of the icons classified for the respective functions is instructed or designated. Thus the data processing apparatus judges whether or not the combination of the dragged-icon device and the dropped-icon device is appropriate (i.e., effective or available). When the data processing apparatus judges that such the combination is not appropriate, the apparatus notifies the user of such a judged result and demands to again perform the instruction operation. Conversely, when the data processing apparatus judges that such the combination is appropriate, the screen shown in  FIG. 5  or  11  is changed to the operation screen (e.g., the screen shown in  FIG. 12 ,  13  or  14 ) which displays at least the button capable of selecting the function (including the expanded function) executable by each device and the function obtained by combining these executable functions. Then, when the output is instructed on this screen by the user (i.e., when the copying start button  415  is depressed), for example, the image is input from the scanner corresponding to the dragged icon, the input image is then transmitted to the printer corresponding to the icon on which the dragged icon is dropped, and the image formation based on the mode set on the setting screen is performed. On the basis of the output instruction by such the combined functions, while the processing is being actually performed by using the devices of the corresponding icons, the screen as shown in  FIG. 33  is displayed on the CRT  16 , and a specific emphasis pattern (e.g., a blinking flash pattern) is added to each of the indicated icons to emphasis it. Further, the displaying status of the indicated icon for each function is temporarily made different from the displaying status of other icons, and the communication path which is displayed on the screen and connects shortest the icons for the respective functions to which the network path is indicated is made different from other paths (see  FIG. 33 ). 
   As explained above, the system structure is discriminated by the specific icon capable of being discriminated for each function and displayed together with its use condition (the screen of  FIG. 5  or  11 ). Namely, one icon selected from the discriminated and displayed icons is overlaid on other icon for combination function (multifunctional) processing intended by the user, and display of the operation status of the devices indicated by the icons is changed to other display (see the screen in  FIG. 33 ), whereby the connection status of the devices constituting the system can be displayed as the icons connected with the virtual network path. Thus, the user can visually confirm the running network structure and the connected peripheral devices as compared with the existing network structure without strangeness. Besides, the user can easily discriminate whether or not the user-selected input and output devices normally operate on the virtually displayed system, as compared with other non-selected icons. Thus, it is possible to highly improve operability of the data processing apparatus in case of selecting each peripheral device connected with the network and issuing intended input and output instructions. 
   Therefore, as the user visually confirms the entire system by using the icons for connecting the combination function (multifunctional) structure with the virtual network path, he can perform the function setting for combining the peripheral devices on the network by a simple icon instruction operation. 
   When the PC connected with the network is shut down, this PC notifies the management server of such shutdown. The management server judges whether or not there is other user who has selected the device connected with this PC. If there is the user who has selected the device connected with this PC or already started the processing by the device connected with this PC, a message “There is a user who has selected or uses the device connected with this computer. If you shut down this computer, the selection or use of such the device by that user is forcedly released or ended. Do you shut down this computer?” is transmitted to this PC. Thus, the shutdown of the PC from which the shutdown is demanded is temporarily reserved. 
   Thus, when the device connected with other PC has been selected, or when the processing by the device connected with other PC was already started, it is possible to prevent that, by the PC shutdown, the selection of such the device is released or the processing by such the device is forcedly ended. For example, in  FIG. 33 , even if the PC of the icon  302   j  connected with the scanner of the icon  303   c  notifies the management server of the shutdown through the network, the management server returns the above-described message to the PC of the icon  302   j  so as to cause this PC to temporarily reserve the shutdown at least until the current job ends. 
   Fifth Embodiment 
     FIG. 34  is a flow chart showing an example of a third data processing procedure in the data processing apparatus according to the present invention. The third data processing procedure corresponds to display processing procedure on the virtual operation panels shown in  FIGS. 12 to 14 . For example, when the scanner icon  303   c  is dragged and dropped on the digital copying machine icon  302   f  and thus the copying function is executed, the third data processing procedure is executed in the step S 306  of  FIG. 32 . 
   First, in a step S 401 , the information of the selected input and output devices is acquired from the device driver information (e.g., the device driver information of  FIG. 10 ) stored and managed in the user&#39;s own apparatus, the resource file of  FIG. 18 , and the like. 
   Concretely, on the basis of the device driver information of  FIG. 10 , the resource file of  FIG. 18  and the like, the resource data (corresponding to the icons  403   a  and  404   a  respectively representing the input and output devices of  FIGS. 12 to 14 ) of the inherent icons corresponding to the selected input and output devices (i.e., the icons (the icons representing the functions including monochrome and color information) extremely close to the appearances of the connected bodies) and the resource data (corresponding to the system image MFI of  FIGS. 12 to 14 ) of the system image MFI (including each option device image) corresponding to the selected output device are acquired. 
   Next, the virtual operation panels shown in  FIGS. 12 to 14  are displayed on the CRT  16  in a step S 402 , the icons  403   a  and  404   a  respectively representing the input and output devices corresponding to the selected input and output devices are displayed on the virtual operation panel in a step S 403 , and the system image MFI corresponding to the output device is displayed in a step S 404 . This system image MFI is the structure image which includes an expansion function capable of being set by the output device, i.e., the structure image of the output device which includes option devices (a finisher, a sorter, a paper deck, etc.) optionally installed in the output device. Here, in addition to the structure image concerning the output device, the structure image which includes an expansion function capable of being set by the input device, i.e., the structure image of the input device which includes an option device optionally installed in the input device (e.g., the ADF optionally installed in the scanner) may be displayed. 
   Next, in a step S 405 , the setting function button layout information which has been previously set on the editing window  850  of  FIG. 19  and stored in the HD  10  or the like of  FIG. 2  is acquired. Then, in a step S 406 , the selectable function buttons (the buttons B 1  to B 8  of  FIGS. 12 to 14 ) are displayed on the virtual operation panel, on the basis of the setting function button layout information. 
   Next, in a step S 407 , on the basis of the input device performance and the output device performance, optimum input and output settings (monochrome/color, density, an image style (resolution), and a sheet size) is determined. 
   For example, when both the input and output devices can cope with color processing, the color is determined as the monochrome/color setting. Conversely, when either one of the input and output devices can cope with only monochrome processing, the monochrome is determined. Half the resolution of the resolution of the output device is determined as the resolution setting. The sheet size is determined based on, e.g., the image size and the sheet size capable of being managed by the selected scanner and printer (A4 size for both the input and output images in this case). 
   Next, in a step S 408 , the optimum input and output settings are displayed as default values on the virtual operation panel (the slider  409  for performing the density setting of  FIGS. 12 to 14 , the slider  410  for setting the image style, the color mode of the input image, and the sheet size are set and displayed in the area  406 ), and the processing ends. Although it is not displayed here (i.e., it is displayed according to the indications by the icons  403  and  404   a  of the input and output devices), the determine optimum input and output settings are set and displayed on the property screen  830  shown in  FIG. 17 . 
   By the above processing, since the icons highly close to the appearances of the bodies of the selected input and output devices and the function including the monochrome/color information and the like are displayed on the virtual operation panel, the user can visually recognize the kinds and functions of the selected input and output devices. 
   Further, since the optimum input and output settings of the selected input and output devices are displayed as default values, even the user who is unfamiliar with the input and output settings (the monochrome/color, the density, the image style (resolution), and the sheet size) can easily output the high-quality image suitable for the performances of the input and output devices. 
   Further, the user can perform the input and output settings in detail by using the detail setting screen (e.g., the property screen shown in  FIG. 17 ) displayed according to the indications by the icons  403   a  and  404   a  respectively representing the input and output devices. 
   Further, since the system image which includes the option device installation status of the selected output device is displayed on the virtual operation panel, the user can visually recognize the option device installation statuses of the selected input and output devices. Thus, even the user who does not know the option device installation status of the selected output device can easily perform the option setting. 
   Further, since the function buttons (the buttons B 1  to B 8  of  FIGS. 12 to 14 ) can be previously edited (i.e., arrangement order setting, and display/non-display setting) on the editing window  850  of  FIG. 19 , thereby further improving operability for function setting. 
   Since the resource file and the resource data of the icon of each device shown in  FIG. 18  are transmitted from the management server to each device through the network path every time the data is updated, the resource of the latest option can be always provided. Even if a new device (including an option device) is manufactured and added by a maker, it is possible by only installing the resource file into the management server, to display the icon (system image) corresponding to the new device (including the option device) on all client machines (PC&#39;s) on the network without performing complicated operations to install the resource file into all the client machines (PC&#39;s). 
   Sixth Embodiment 
     FIG. 35  is a flow chart showing an example of a fourth data processing procedure in the data processing apparatus according to the present invention. The fourth data processing procedure corresponds to processing which is performed in the step S 308  of  FIG. 32 , for example, when the scanner icon  303   c  is dragged and dropped on the digital copying machine icon  302   f  and thus the copying function is executed. 
   First, in a step S 501 , the image is input from the input device according to the setting on the virtual operation panels shown in  FIGS. 12 to 14 . In the present embodiment, the image is actually input from the scanner corresponding to the icon  303   c.    
   Next, in a step S 502 , it is judged whether or not the image processing (i.e., two kinds of image processing (the effect processing and the stamp processing) called the amusement setting in the present embodiment) on the PC side has been set by the button B 7  of  FIGS. 12 to 14  and on the setting screen of  FIGS. 15 and 16 . If judged that the image processing on the PC side has been set, the flow advances to a step S 503  to cause the PC to perform the image processing (the effect processing, the stamp processing, etc.) to the image input in the step S 501  on the basis of the setting of  FIGS. 15 and 16 , and the flow advances to a step S 504 . 
   Conversely, if judged in the step S 502  that the image processing on the PC side has been set by the button B 7  of  FIGS. 12 to 14  and on the setting screen of  FIGS. 15 and 16 , the flow advances to the step S 504  as it is. 
   Next, in the step S 504 , an output job of output format (including processing page layout depending on the output device, two-face printing, stapling or the like) based on the input and output settings on the virtual operation panel is generated, and the generated output job is transmitted to the output device (the digital copying machine corresponding to the icon  302   f  in the present embodiment) in a step S 505 . In this case, the output job data (including the command to instruct the processing (the page layout, the two-face printing, the stapling, etc.) to be performed on the output device side) is transmitted together with the input image (or the image processed on the PC side when the image is processing on the PC side). Then the processing ends. It should be noted that the processing in the steps S 502  to S 505  is performed every time the data corresponding to output one page is input. 
   By the above processing, after the image input by using the input device is subjected to the image processing by the user on the basis of the application on the PC, the conventional complicated processing to output the processed image by using the function of the output device is unnecessary. Namely, after the input and output devices are selected by the drag and drop operations, the image subjected to the PC-side processing independent on the output device in addition to the output-device-side image processing can be output from the output device by simply setting the PC-side processing and the output-device-side processing on the virtual operation panel. 
   Seventh Embodiment 
   In the above embodiment, the case where the printing processing by the output device is performed based on the setting on the virtual operation panels shown in  FIGS. 12 to 14  was explained. However, when the printing processing is performed, it is possible to acquire resource information (a sheet remaining quantity, a toner remaining quantity, a staple remaining quantity, etc.) of the output device to judge whether or not the printing processing can be performed, and notify the user of the judged result. Hereinafter, the seventh embodiment will be explained. 
     FIG. 36  is a view showing an example of a warning message displayed on the CRT  16  shown in  FIG. 2 . For example, in the case where the button  415  on the virtual operation panels of  FIGS. 12 to 14  is depressed by the user to instruct the copying execution, when the number of sheets held in the output device is smaller than the number of sheets necessary for the instructed printing processing, the warning message is displayed before the printing processing is actually performed. 
   In  FIG. 36 , numeral  901  denotes the warning message. For example, in the case where the button  415  on the virtual operation panels of  FIGS. 12 to 14  is depressed to instruct the copying execution, when it is anticipated that the number of sheets held in the output device is smaller than the number of sheets necessary for the instructed printing processing, the warning message  901  is displayed on the CRT  16  before the printing processing is actually performed. 
   Numeral  902  denotes a button. When the button  902  is depressed, the printing processing in the selected output format is stopped. Instead, a selection screen of other output format (i.e., a selection window of output format shown in later-described  FIG. 37 ) which can output the image is displayed. 
   Numeral  903  denotes a cancel button. When the cancel button  903  is depressed, the printing processing is stopped, and the displayed content returns to the setting screen, e.g., the virtual operation panels shown in  FIGS. 12 to 14 . 
   Numeral  904  denotes a continuation button. When the continuation button  904  is depressed, the printing processing is continued (or forcedly performed). 
     FIG. 37  is a view showing an example of an output format selection window displayed on the CRT  16  shown in  FIG. 2 . 
   In  FIG. 37 , numeral  1001  denotes the output format selection window which is displayed when the button  902  of  FIG. 36  is depressed. In the window  1001 , other output formats capable of performing image output (e.g., 2-in-1 printing, two-face printing, etc.) in the number of sheets held in the output device are listed and displayed in a selectable manner. 
   Numeral  1002  denotes an execution button. When the execution button  1002  is depressed, the printing processing is performed in the selected other output format. Numeral  1003  denotes a processing stop button. When the processing stop button  1003  is depressed, the displayed content returns to the setting screen, e.g., the virtual operation panels shown in  FIGS. 12 to 14 . 
     FIG. 38  is a flow chart showing an example of a fifth data processing procedure in the data processing apparatus according to the present invention. The fifth data processing procedure is performed when the functions (the copying function, the printing function, etc.) to perform the printing processing by using the output device (i.e., the printer) is executed. 
   When it is judged that the printing processing is performed, sheet number information (representing the number of sheets) is acquired from the indicated printer in a step S 601 . 
   Next, in a step S 602 , it is judged based on the acquired sheet number information whether or not the number of sheets capable of performing the instructed (e.g., designated on the virtual operation panels of  FIGS. 12 to 14 ) printing processing has been held in the printer (i.e., whether or not a processing condition is satisfied). If judged that the processing condition is satisfied, the flow advances to a step S 603  to perform the printing processing. 
   Conversely, if judged in the step S 602  that the number of sheets capable of performing the instructed (e.g., designated on the virtual operation panels of  FIGS. 12 to 14 ) printing processing is not held in the printer (i.e., the processing condition is not satisfied), the flow advances to a step S 604  to display the warning message  901  shown in  FIG. 36 . 
   Next, in a step S 605 , it is judged whether the user depresses the button  902  shown in  FIG. 36  (i.e., instructs the display of other processible output format), depresses the cancel button  903  (i.e., instructs the print processing stop), or depresses the continuation button  904  (i.e., instructs the continuation of the printing processing). 
   If judged that the user instructs the printing processing stop, the printing processing ends. 
   If judged in the step S 605  that the user instructs the continuation of the printing processing, the flow advances to the step S 603  to perform the printing processing. 
   Further, if judged in the step S 605  that the user instructs the display of other processible output format, the flow advances to a step S 606  to acquire other output format capable of performing the printing processing instructed from the virtual operation panel or the like, on the basis of printer information previously acquired from a printer driver, the sheet number information acquired in the step S 601 , and the like. Then, in a step S 607 , the output format selection window  1001  of  FIG. 37  which shows other output format capable of performing the instructed printing processing is displayed. 
   Next, in a step S 608 , it is judged whether the user depresses the execution button  1002  shown in  FIG. 37  (i.e., instructs the change of output format), or depresses the processing stop button  1003  (i.e., instructs the printing processing stop). 
   If judged that the user instructs the printing processing stop, the printing processing ends. 
   Conversely, if judged in the step S 608  that the user instructs the change of output format, the flow advances to a step S 609  to perform the printing processing in the instructed output format, i.e., the output format selected in the output format selection window  1001  of  FIG. 37 , and the processing ends. 
   By the above processing, when it is anticipated that the number of sheets becomes insufficient during the printing, the warning message is displayed. Thus, it is possible to prevent that the number of sheets becomes insufficient during the printing beforehand, whereby the user can refill the sheets to the output device before the actual processing is started. 
   In the present embodiment (especially the steps S 601  and S 602  of  FIG. 38 ), the case where the sheet number information is acquired from the designated printer, and then it is judged based on the acquired sheet number information whether or not the sheets of which number is sufficient to perform the instructed printing processing have been held was explained. However, it is possible to acquire the sheet number information of the designated printer and the sheet number information used in the spooled job in the step S 601  of  FIG. 38 , and to judge based on the acquired sheet number information whether or not the sheets of which number is sufficient to perform the instructed printing processing have been held in consideration of the sheet information used in the spooled job. In this case, a message “This sheet has been preserved for printing.” can be additionally displayed. 
   Thus, it is possible to accurately anticipate that the sheets become insufficient during the printing processing, in consideration of the spooled job. 
   Further, it is possible to notify the user of other output format (e.g., the two-face printing, the 2-in-1 printing, or the like) capable of performing the printing processing designated by the user, and to perform the selection on the screen notified, whereby the complicated operation that the displayed content must return to the setting screen every time the output format is changed is unnecessary. Thus, even the user who is unfamiliar with the operation can easily change the output format to other output format. Besides, it is possible to perform the instructed printing processing (i.e., it is possible to perform substitute printing) without refilling sheets to the printer. 
   In the present embodiment, the case where, in case of performing the printing, the sheet remaining quantity in the output device is acquired and it is judged based on the acquired information whether or not the printing processing can be performed was explained. Besides, when stapling processing has been set to the designated printing processing, it is possible to acquire staple remaining information of the output device, judge based on the acquired information whether or not the printing processing can be performed, and notify the user of such a warning message as shown in  FIG. 36  if the printing processing can not be performed. 
   Even in this case, the user can instruct the change of output format. Namely, in an output format selection window such as the window  1001  shown in  FIG. 37 , it is possible to select other output format (e.g., single-staple sort processing or non-staple sort processing by which the number of used staples can be reduced) capable of performing the instructed printing processing. Thus, the user can change the output format and perform the printing processing. 
   By the above processing, when it is anticipated that the number of staples becomes insufficient during the printing, the warning message is displayed. Thus, it is possible to prevent that the number of staples becomes insufficient during the printing beforehand, whereby the user can refill the staples to the output device before the actual processing is started. 
   Further, it is possible to notify the user of other output format (e.g., single-staple sort processing, two-face printing sort processing, 2-in-1 sort processing or non-staple sort processing by which the number of used staples can be reduced (i.e., by which stapling can be easily performed in later manual stapling)) capable of performing the staple-added printing processing, and to perform the selection on the screen notified, whereby the complicated operation that the displayed content must return to the setting screen every time the output format is changed is unnecessary. Thus, even the user who is unfamiliar with the operation can easily change the output format to other output format. Besides, it is possible to perform the instructed printing processing (i.e., it is possible to perform substitute processing) without refilling the staples to the printer. 
   Further, it is possible to acquire the staple information from the designated printer and the information of the staple used in the spooled job, and to judge based on the acquired staple information whether or not the staples of which number is sufficient to perform the instructed printing processing have been held in the printer, in consideration of the staples used in the spooled job. 
   Thus, it is possible to accurately anticipate that the staples become insufficient during the printing processing, in consideration of the spooled job. 
   Eighth Embodiment 
   In the above seventh embodiment, the case where, in case of performing the printing, the resource information (i.e., the sheet remaining information, and the staple remaining information) or the like of the output device is acquired, it is judged based on the acquired information whether or not the printing processing can be performed, and the judged result is notified to the user was explained. Besides, in case of performing the printing, it is possible to acquire resource information (i.e., toner remaining information) or the like of the output device, judge based on the acquired information whether or not the printing processing can be performed, and notify the user of the judged result. Hereinafter, the eighth embodiment will be explained. 
     FIG. 39  is a view showing an example of the warning message displayed on the CRT  16  shown in  FIG. 2 . For example, in the case where the button  415  on the virtual operation panels of  FIGS. 12 to 14  is depressed to instruct the copying execution, when the remaining quantity of the toner held in the output device is smaller than the toner quantity necessary for the instructed printing processing, the warning message is displayed before the printing processing is actually performed. 
   In  FIG. 39 , numeral  1101  denotes the warning message. For example, in the case where the button  415  on the virtual operation panels of  FIGS. 12 to 14  is depressed to instruct the copying execution, when it is anticipated that the remaining quantity of the toner held in the output device is smaller than the toner quantity necessary for the instructed printing processing, the warning message  1101  is displayed before the printing processing is actually performed. 
   It should be noted that the warning message  1101  is displayed for the toners of all the colors to which insufficiency is anticipated. For example, when it is anticipated that black toner and cyan toner become insufficient, the message “There is a possibility where black toner and cyan toner are insufficient. Confirm (and fill) black and cyan toner quantities, and again perform proc.” is displayed. 
   Numeral  1102  denotes an OK button. When the OK button  1102  is depressed, the printing processing ends, and the displayed content returns to the setting screen, e.g., the virtual operation panels shown in  FIGS. 12 to 14 . 
   Numeral  1103  denotes a continuation button. When the continuation button  1103  is depressed, the printing processing is continued (or forcedly performed). 
     FIG. 40  is a flow chart showing an example of a sixth data processing procedure in the data processing apparatus according to the present invention. 
   Initially, in a step S 701 , the domain information to which the user&#39;s own apparatus belongs is acquired. Next, in a step S 702 , the address of the management server (either of the PC&#39;s on the network shown in  FIG. 1  is registered as the management server) is acquired. 
   Next, in a step S 703 , it is judged whether or not the processing (e.g., the copying processing, the printing processing or the like) to access the printer is performed. If judged that the processing to access the printer is not performed, the processing ends as it is. 
   Conversely, if judged in the step S 703  that the processing to access the printer is performed, the flow advances to a step S 704  to acquire the indicated printer log (either of the printer log information segments  872 - 1  to  872 -M in the printer log management information shown in  FIG. 21 ). Concretely, the information as to which printer the access is performed (i.e., the information as to the designated printer) is notified to the management server, and the management server returns to the client machine (PC) the printer log information segment (log information) of the corresponding printer selected from among the printer log information segments  872 - 1  to  872 -M in the printer log management information shown in  FIG. 21 . 
   Next, in a step S 705 , the toner information (i.e., the toner remaining quantity) or the like is acquired from the designated printer. 
   Next, in a step S 706 , it is judged whether or not the instructed processing satisfies a necessary condition, on the basis of the log information acquired in the step S 704  and the printer toner information acquired in the step S 705 . Concretely, the log information acquired from the management server is analyzed, the toner use quantity in case of performing processing same as the currently designated processing (i.e., the processing judged to be the same as the currently designated processing on the basis of a kind of application, a kind of scanner (high speed scanner, low speed scanner, color scanner, or monochrome scanner), the number of total printing pages, sheet size, color/monochrome, one face/two faces, etc.) is calculated (anticipated), and the anticipated toner user quantity is compared with the toner remaining quantity acquired from the printer, thereby judging whether or the not the instructed processing satisfies the necessary condition (i.e., judging whether or not the processing can be performed). 
   If judged in the step S 706  that the instructed processing satisfies the necessary condition on the basis of the log information and the printer toner information, the flow advances to a step S 710  to perform the instructed processing. Thus, the toner information is acquired from the printer, and the log information (printer name, input information, the number of total printing pages, sheet size, color/monochrome, one face/two faces, toner use quantity (for each color), etc.) is generated based on the acquired toner information. 
   Next, in a step S 711 , the generated toner information (printer name, input information, the number of total printing pages, sheet size, color/monochrome, one face/two faces, toner use quantity (for each color), etc.) is registered in the management server, and the processing ends. 
   Conversely, if judged in the step S 706  that the instructed processing does not satisfy the necessary condition on the basis of the log information and the printer toner information, the flow advances to a step S 707  to display the warning message shown in  FIG. 39 . Then, in a step S 708 , it is judged whether or not the processing is instructed to be continued as it is (i.e., it is judged whether or not the continuation button  1103  is depressed). 
   If judged in the step S 708  that the processing is instructed to be continued as it is, the flow advances to a step S 709  to continue the processing. Thus, the toner information is acquired from the printer, the log information (printer name, input information, the number of total printing pages, sheet size, color/monochrome, one face/two faces, toner use quantity (for each color), etc.) is generated based on the acquired toner information, and the flow then advances to the step S 711 . 
   Conversely, if judged in the step S 708  that the processing is instructed not to be continued (i.e., judged that the OK button  1102  is depressed), the processing ends. 
   By the above processing, when it is anticipated that the toner becomes insufficient during the printing, the warning message is displayed. Thus, it is possible to prevent that the toner becomes insufficient during the printing beforehand, whereby the user can refill the toner to the output device before the actual processing is started. 
   Further, it is possible to notify the user of other output format (e.g., economy-mode printing of which toner use quantity is small, monochrome printing, 2-in-1 printing, etc.) capable of performing the instructed printing processing with use of the selection window same as the output format selection window  1001  shown in  FIG. 37 , and to perform the selection on the screen notified, whereby the complicated operation that the displayed content must return to the setting screen every time the output format is changed is unnecessary. Thus, even the user who is unfamiliar with the operation can easily change the output format to other output format. Besides, it is possible to perform the instructed printing processing (i.e., it is possible to perform substitute processing) without refilling the toner to the printer. 
   Further, if judged that the instructed processing does not satisfy the necessary condition, it is possible to notify the user of other printer capable of performing the user-instructed printing processing with use of the selection window same as the output format selection window  1001  shown in  FIG. 37 , and to perform the selection on the screen notified, whereby the complicated operation that the displayed content must return to the setting screen every time the output format is changed is unnecessary. Thus, even the user who is unfamiliar with the operation can easily change the used printer to other printer. Besides, it is possible to perform the instructed printing processing without refilling the toner to the printer. 
   Further, for example, when it must wait for one executable job for a long time to execute because of a spooled other job, it is possible to acquire an end anticipation time of the spooled other job from the printer when accessing this printer, and then notify the warning message as to the end anticipation time. 
   In the present embodiment, the case where, in case of performing the printing, the toner remaining quantity or the like of the output device is acquired, it is judged based on the acquired information whether or not the printing processing can be performed, and the judged result is notified to the user was explained. However, the checked target is not limited to the toner. Namely, ink, an ink ribbon or the like may be checked. 
   Further, in the present embodiment, the case where, in case of performing the printing processing, the printer log is acquired from the management server through the network and the resource information (the toner remaining quantity) is acquired from the printer, and it is judged based on the acquired information whether or not the printing processing can be performed was explained. However, in a case where a stand-alone PC ends the printing processing to the printer connected with the PC itself, it is possible to once store a printer log in the PC&#39;s own HD or the like, acquire the stored printer log and the printer resource information (the toner remaining quantity) from the connected printer, and judge based on the acquired information whether or not the printing processing can be performed. 
   Thus, even in the printer which is connected with the stand-alone PC, it is possible to prevent that the toner becomes insufficient during the printing beforehand, whereby the user can refill the toner to the output device before the actual processing is started. 
   Ninth Embodiment 
   In the above eighth embodiment, the case where, in case of performing the printing processing, the printer log is acquired from the management server and the resource information (the toner remaining quantity) is acquired from the printer, it is judged based on the acquired information whether or not the printing processing can be performed, and the judged result is notified to the user was explained. However, it is possible based on a user&#39;s instruction to acquire the log information for each processing (printing processing, FAX transmission/reception processing, image reading processing, etc.) managed by the management server, and display the acquired log information. Hereinafter, the present embodiment will be explained. 
     FIG. 41  is a flow chart showing an example of a seventh data processing procedure in the data processing apparatus according to the present invention. 
   Initially, in a step S 801 , the domain information to which the user&#39;s own apparatus belongs is acquired. Next, in a step S 802 , the address of the management server (either of the PC&#39;s on the network shown in  FIG. 1  is registered as the management server) is acquired. 
   Next, in a step S 803 , it is judged whether or not display of the log information is instructed (e.g., it is possible to instruct the display for each of the printing function, the FAX transmission/reception function, the image reading function, etc.). If judged that the log information display is not instructed, the flow advances to a step S 806 . 
   Conversely, if judged in the step S 803  that the log information display is instructed, the flow advances to a step S 804  to acquire the log information of the indicated function ( FIGS. 22 to 25 ) from the management server, and the flow further advances to a step S 805  to display the acquired information in a user&#39;s desired form (list display, graph display or the like). It should be noted that this display form is indicated when the log information display is instructed. 
   Next, in the step S 806 , it is judged whether or not display of bind information is instructed (e.g., it is possible to instruct the display for each of the copying function and the FAX transmission/reception function). If judged that the bind information display is not instructed, the flow advances to a step S 809 . 
   Conversely, if judged in the step S 806  that the bind information display is instructed, the flow advances to a step S 807  to acquire the bind information of the indicated function ( FIG. 20 ) from the management server, and the flow further advances to a step S 808  to display the acquired information in the user&#39;s desired form (list display, graph display or the like). It should be noted that this display form is indicated when the bind information display is instructed. 
   Next, in the step S 809 , it is judged whether or not display of a network traffic quantity is instructed. If judged that the network traffic quantity display is not instructed, the processing ends as it is. 
   Conversely, if judged in the step S 809  that the network traffic quantity display is instructed, the flow advances to a step S 810  to acquire network traffic quantity information (not shown) from the management server, and the flow further advances to a step S 811  to display the acquired information in the user&#39;s desired form (list display, graph display or the like). It should be noted that this display form is indicated when the network traffic quantity display is instructed. 
   By the above processing, it is possible to easily grasp the device combination information (bind information), a use frequency, a use time and the like for each function. For example, it is possible to easily grasp the combination of the scanner and the printer in case of the copying function. 
   It should be noted that, as each log information, the processing information is notified from the client machine (PC) to the management server every time each function is executed. 
   Further, it should be noted that the network traffic quantity is always monitored by the management server. 
   Tenth Embodiment 
   In the above first to ninth embodiments, the case where the icons of the virtually displayed scanner and printer or the icons of the virtually displayed scanner and multifunctional device are dragged and dropped, and thus the function processing to print the image of one document input from one scanner with use of the printer, the multifunctional device and the like was explained. However, it is possible to combine the image of one document input from the scanner with the images of the documents of the data files stored in the user&#39;s own apparatus and other PC on the network, and output the combined images. Besides, it is possible to combine (i.e., bind) the image data of the plural documents input from the two scanners with others, and output the combined images. Hereinafter, the tenth embodiment will be explained. 
     FIG. 42  is a view showing an example of a virtual operation panel displayed on the CRT  16  of the data processing apparatus shown in  FIG. 2 . When the scanner icon dragged in the status that the icon  302   f  of  FIG. 11  is effectively displayed is dropped on the icon  302   f , the virtual operation panel is displayed on the CRT  16  as the image by which the digital copying machine  118  and the option devices connected thereto can be confirmed, by referring to the device driver information acquired from the digital copying machine  118  corresponding to the icon  302   f  and managed on the HD  10  or the PMEM  3 . It should be noted that the same parts as those in  FIG. 12  are added with same numerals and symbols, respectively. 
   In  FIG. 42 , numeral  1201  denotes a combination document file designation area in which the document file (a document file, an image file or the like stored as a shared file in the user&#39;s own apparatus or other PC) to be combined with the image of one document input from the input device corresponding to the icon  403   a  is designated. When there is no designation, a message “none” is displayed in the combination document file designation area  1201 , and the image input from the input device of the icon  403   a  and the file are not combined with each other. Numeral  1201   a  denotes a button. When the button  1201   a  is depressed, the combination document file selection window shown in later-described  FIG. 43  is displayed. 
   Numeral  1202  denotes a combination image data designation area in which other input device for inputting the image data to be combined with the image input from the input device corresponding to the icon  403   a  is designated. When there is no designation, a message “none” is displayed in the combination image data designation area  1202 , and the image input from the input device of the icon  403   a  and the file are not combined with each other. Numeral  1202   a  denotes a button. When the button  1202   a  is depressed, the combination image data selection window shown in later-described  FIG. 44  is displayed. 
   Numeral  1203  denotes an output order display area which includes an icon (a combination document  1203   a ) representing the file designated in the combination document file designation area  1201 , an icon (an image  1203   b ) representing the image input from the input device corresponding to the icon  403   a , and an icon (a combination image  1203   c ) representing the image input from the input device designated in the combination image data designation area  1202 . The combination document  1203   a , the image  1203   b  and the combination image  1203   c  are output in the displayed order (i.e., from the left in due order). Namely, the image input from the input device corresponding to the icon  403   a  is combined with the image of the file designated in the combination document file designation area  1201 , and the image input from the input device designated in the combination image data designation area  1202  is serially combined with the above combined image, whereby the three documents are collected into one document and output. 
   The output order of the combination document  1203   a , the image  1203   b  and the combination image  1203   c  in the output order display area  1203  can be changed by, e.g., the drag operation of the mouse  13  shown in  FIG. 2 . 
   The combination document  1203   a  and the combination image  1203   c  are not displayed when there is no designation in the combination document file designation area  1201  and the combination image data designation area  1202 . 
   For example, when the scanner icon dragged in the status that the icon  302   f  of  FIG. 11  is effectively displayed is dropped on the icon  302   f , the virtual operation panel as shown in  FIG. 42  is displayed. At this time, only the icon of the image  1203   b  (i.e., the icon representing the image input from the scanner corresponding to the dragged scanner icon) is displayed in the output order display area  1203 . When the file is designated in the combination document file designation area  1201 , the icon of the combination document  1203   a  is displayed at the right of the image  1203   b . Subsequently, when the input device is designated in the combination image data designation area  1202 , the icon of the combination image  1203   c  is displayed at the right of the icon of the combination document  1203   a . Then, when the copying start button  415  is depressed, the documents corresponding to the icons displayed in the area  1203  are sequentially output and image formed as one document in the order displayed in the area  1203  (i.e., in the order of the image  1203   b , the combination document  1203   a  and the combination image  1203   c  in this case). 
     FIG. 43  is a view showing an example of the combination document selection window displayed according to icon instructions corresponding to the button  1201   a  displayed on the virtual operation panel of the CRT  16  of the data processing apparatus shown in  FIG. 2 . 
   In  FIG. 43 , numeral  1300  denotes a combination document selection window which displays files (a document  1 , a document  2  and an image  1 ) in a directory preset as a combination document directory. Here, the documents  1  and  3  represent the document files, and the image  1  represents the image file. When the user selects either of the document  1 , the document  2  and the image  1  by using the mouse  13  or the like, the combination document selection window  1300  is closed, and the full path of the selected file is displayed in the combination image data designation area  1201  of  FIG. 42 . 
   When, in a file  1301 , a selectable item “change of combination document directory” in a not-shown menu displayed based on an instruction of the mouse  13  or the like is selected, the combination document directory can be changed. Further, in the file  1301 , when a selectable item “reference to network” in the not-shown menu displayed based on an instruction of the mouse  13  or the like is selected, the system structure status screen of  FIG. 11  is displayed, whereby it is possible to select the shared file on other PC. 
     FIG. 44  is a view showing an example of the combination image data selection window displayed according as the button  1202   a  displayed on the virtual operation panel of  FIG. 42  is depressed. 
   In  FIG. 44 , numeral  1400  denotes the combination image data selection window. Input device names shared in the network are displayed in a selection display area  1401 . Numeral  1402  denotes a selection button. When the selection button  1402  is depressed after either of the input devices displayed in the selection display area  1401  is indicated by using the mouse  13  or the like, the combination image data selection window  1400  is closed, and the name of the selected input device is displayed in the combination image data designation area  1202  of  FIG. 42 . Numeral  1403  denotes a cancel button. When the cancel button  1403  is depressed, the selection in the selection display area  1401  is cancelled, and the combination image data selection window  1400  is then closed. 
   Numeral  1404  denotes a reference menu. When the reference menu  1404  is indicated by using the mouse  13  or the like, the system structure status screen shown in  FIG. 11  is displayed, whereby it is possible to select the input device on this screen. 
   In the status that the system structure status screen shown in  FIG. 11  is displayed, when predetermined keys, e.g., “CTRL” and “ALT” keys of the keyboard  12  are simultaneously depressed, the shape of the icon corresponding to the input device having the same function as that of the input device already selected (i.e., the input device corresponding to the icon  403   a  of  FIG. 42 ) can be changed and displayed (e.g., winked). 
   Further, on the system structure status screen shown in  FIG. 11 , in order to prevent that the already-selected input device (i.e., the input device corresponding to the icon  403   a  of  FIG. 42 ) is selected doubly, the icon of the already-selected input device may be displayed, e.g., in gray such that the user can not select such the device. 
     FIG. 45  is a flow chart showing an example of an eighth data processing procedure in the data processing apparatus according to the present invention. The eighth data processing procedure corresponds to processing which is performed in the step S 308  of  FIG. 32 , for example, when the scanner icon  303   c  is dragged and dropped on the digital copying machine icon  302   f  and thus the copying function is executed. 
   First, in a step S 901 , it is judged whether or not the combination document file is designated in the combination document file designation area  1201  on the virtual operation panel. If judged that the combination document file is not designated, the flow advances to a step S 903  as it is. Conversely, if judged that the combination document file is designated, the flow advances to a step S 902  to display the icon of the combination document  1203   a  in the output order display area  1203  (in left justify). 
   Next, in the step S 903 , it is judged whether or not the combination image is designated in the combination image data designation area  1202  on the virtual operation panel. If judged that the combination image is not designated, the flow advances to a step S 905  as it is. Conversely, if judged that the combination image is designated, the flow advances to a step S 904  to display the icon of the combination image  1203   c  in the output order display area  1203  (in left justify). 
   Next, in the step S 905 , it is judged whether or not the output order change is instructed in the output order display area  1203  on the virtual operation panel. If judged that the output order change is not instructed, the flow advances to a step S 907  as it is. Conversely, if judged that the output order change is instructed, the flow advances to a step S 906  to change the output order of the icons in the output order display area  1203  in accordance with the output order change instruction, and the display the icons in the changed output order. 
   Next, in the step S 907 , it is judged whether or not the copying start is instructed by using the copying start button  415  on the virtual operation panel. If judged that the copying start is not instructed, the flow returns to the step S 901 . Conversely, if judged that the copying start is instructed, the flow advances to a step S 908  to acquire the setting on the virtual operation panel, and the flow further advances to a step S 909  to perform the inputting firstly designated in the output order display area  1203  (i.e., the inputting corresponding to the icon displayed first from the left) in accordance with the acquired setting. 
   Next, in a step S 910 , it is judged whether or not the inputting secondarily displayed in the output order display area  1203  is designated (i.e., the icon displayed second from the left exists). If judged that the inputting secondarily displayed is not designated, the flow advances to a step S 914 . Conversely, if judged that the inputting secondarily displayed is designated, the flow advances to a step S 911  to perform the inputting secondarily designated in the output order display area  1203  (i.e., the inputting corresponding to the icon displayed second from the left). 
   Next, in a step S 912 , it is judged whether or not the inputting thirdly displayed in the output order display area  1203  is designated (i.e., the icon displayed third from the left exists). If judged that the inputting thirdly displayed is not designated, the flow advances to the step S 914 . Conversely, if judged that the inputting thirdly displayed is designated, the flow advances to a step S 913  to perform the inputting thirdly designated in the output order display area  1203  (i.e., the inputting corresponding to the icon displayed third from the left). 
   Next, in the step S 914 , the first inputting to the third inputting are sequentially combined with others, and an output job of output format (including processing page layout depending on the output device, two-face printing, stapling, etc.) based on the input and output settings on the virtual operation panel is generated. Then, in a step S 915 , the output job data and the images of the plural designated documents are transmitted in the designated order to the output device (the digital copying machine of the icon  302   f  in this case), and the processing ends. It should be noted that the job generation in the step S 914  and the job transmission in the step S 915  are performed every time the data of output one page is input. However, the job may be output after the data of plural pages is stored in a memory. 
   According to the above processing, by outputting the plural input sources and their output order designated on one operation screen, it is possible to combine the information input from the plural user-desired input sources in the user-desired order and then output the combination information from the output device selected by the user. Thus, for example, the image which is obtained by combining the document file, the image file and the like stored as the shared files in the user&#39;s own apparatus or other communicatable PC with the image read from the scanner can be output from the selected output device in the desired output format, e.g., two-face format, 2-in-1 format or the like. 
   Further, the image which is obtained by combining the image read from two different-function scanners (e.g., a color scanner and a monochrome high-speed scanner) with each other can be output from the selected output device in the desired output format, e.g., two-face format, 2-in-1 format or the like. 
   Further, in the case where the image obtained by combining the images respectively read from the two scanners having equivalent functions with each other is output from the selected output device in the desired output format, e.g., two-face format, 2-in-1 format or the like, for example, even if the scanner having an ADF or the like can not be used when two originals are read, it is possible by reading the originals one by one from the plural scanner to read the two original without troublesomely exchanging the originals. It should be noted that, although the two scanners are used in the present embodiment, three or more scanners may be used. 
   Further, when the information input from the plural input sources (although the three input sources are used in the present embodiment, four or more input sources may be used) are combined with others in the designated order and then output, it is possible to add page numbers throughout the sheets on which images are formed and then output these sheets from the output device in the desired output format, e.g., two-face format, 2-in-1 format or the like. 
   For example, the above operation will be explained with reference to the screen shown in  FIG. 42  as follows. The document which corresponds to the icon  1203   a  displayed first from the left in the output order display area  1203  is the document which is generated based on the application program for the data processing apparatus (PC) and consists of five pages. The document corresponds to the second icon  1203   b  is the document which is to be input from the scanner corresponding to the icon  403   a  and consists of two pages. The third icon  1203   c  corresponds to the document which is input from other scanner on the network (a scanner  300  in  FIG. 42 ) different from the scanner of the icon  403   a  and consists of three pages. In such display status of the output order display area  1203 , according as the button  415  is depressed by the user, the three documents, i.e., the five-page image document corresponding to the icon  1203   a  read from the memory of the data processing apparatus, the two-page image document read from the scanner of the icon  403   a , and the three-page image document read from the scanner  300  are transmitted to the digital copying machine of the icon  302   f . The digital copying machine which received these three documents collects them into one document and performs the image formation. At this time, for example, page numbers (i.e., first to fifth pages) are formed together with the images respectively on the sheets (i.e., five sheets) to which the images of the document of the icon  1203   a  are to be formed, page numbers (i.e., sixth to seventh pages) are formed together with the images respectively on the sheets (i.e., two sheets) to which the images of the document of the icon  1203   b  are to be formed, and page numbers (i.e., eighth to tenth pages) are formed together with the images respectively on the sheets (i.e., three sheets) to which the images of the document of the icon  1203   c  are to be formed. Then, for example, when the stapling is set by using the button B 5  of  FIG. 42 , the stapling is performed to one sheaf of these ten-page sheets. Further, for example., before the button  415  is depressed, when the user drags the icon  1203   c  and drops it between the icons  1203   a  and  1203   b  by using the mouse  13  of the data processing apparatus, the output order is changed to the order of the documents  1203   a ,  1203   c  and  1203   b . Then, if the button  415  is depressed, the digital copying machine of the icon  302   f  which received these three documents forms the page numbers (i.e., first to fifth pages) together with the respective images on the sheets (i.e., five sheets) to which the images of the document of the icon  1203   a  are to be formed, forms the page numbers (i.e., sixth to eighth pages) together with the respective images on the sheets (i.e., three sheets) to which the images of the document of the icon  1203   c  are to be formed, and subsequently forms the page numbers (i.e., ninth to tenth pages) together with the respective images on the sheets (i.e., two sheets) to which the images of the document of the icon  1203   b  are to be formed. Thus, by operating and controlling the icons displayed on the output order display area  1203 , it is possible to easily change the output order of the plural documents in the case where the plural documents from the plural image generation sources are collected and output. 
   Further, in the present embodiment, the case of combining the information input from the plural input sources and then outputting the combination information was explained. However, it is possible to set an application program of image processing started by the user&#39;s own apparatus, combine the information input from the plural input sources in the designated order, and embed the combination information in such the application program itself. 
   Thus, without performing the conventional complicated input operation of independently inputting the information from the plural input sources and then combining the input information, it is possible by only designating the input sources and the combination order to embed the combination information obtained by freely combining the information input from the plural input sources in the designated order, in the application program. 
   It should be noted that, in each of the above embodiments, the printer may be an electrophotographic-system printer, an inkjet-system printer, a sublimation-system printer or other-system printer, and the scanner may be a flatbed-system scanner or other-system scanner. 
   Further, it should be noted that the peripheral devices on the network are not limited to the printer, the scanner and the digital copying machine. Namely, a digital camera, a modem and other devices may be used as the peripheral devices. In this case, like the printer, the scanner and the digital copying machine, the peripheral devices such as the digital camera, the modem and the like can be displayed on the system structure screen of  FIG. 11  by using the icons of which shapes are close to the respective appearances of these devices. Besides, like the printer, the scanner and the digital copying machine, the peripheral devices such as the digital camera, the modem and the like can be designated as the input and output devices, thereby executing the above various combination functions (multifunctions). 
   Hereinafter, the structure of the data processing program which is readable by the data processing apparatus according to the present invention will be explained with reference to a memory map shown in  FIG. 46 . 
     FIG. 46  is the view for explaining the memory map of a storage medium in which the various data processing programs readable by the data processing apparatus according to the present invention are stored. 
   Although the drawing is silent, information (e.g., version information, a programmer&#39;s name, etc.) for managing program groups stored in the storage medium is also stored in the storage medium. Further, information which depends on an OS (operating system) on the program reading side (e.g., an icon for discriminatingly displaying a program) is occasionally stored in the storage medium. 
   Further, data which depend on the various programs are also managed in the directory. When an installed program or data is compressed, a program for decompressing it is occasionally stored. 
   Further, each of the functions of the above embodiments shown in  FIGS. 9 ,  32 ,  34 ,  35 ,  38 ,  40 ,  41  and  45  may be executed by a host computer in accordance with an externally installed program. In this case, the present invention is applicable to a case where an information group including the program is supplied from a storage medium such as a CD-ROM, a flash memory, an FD or the like or external storage medium through the network to the data processing apparatus. 
   As described above, it is needless to say that the object of the present invention can be achieved in a case where the storage medium storing the program codes of software for realizing the functions of the above embodiments is supplied to a system or an apparatus and then a computer (or CPU or MPU) in the system or the apparatus reads and executes the program codes stored in the memory medium. 
   In this case, the program codes themselves read from the storage medium realize the new functions of the present invention, and the storage medium storing such the program codes constitute the present invention. 
   The storage medium storing the program codes can be, e.g., a floppy disk, a hard disk, an optical disk, a magnetooptical disk, a CD-ROM, a CD-R, a magnetic tape, a non-volatile memory card, a ROM, an EEPROM, or the like. 
   Further, it is needless to say that the present invention also includes not only the case where the functions of the embodiments are realized by executing the program codes read by the computer, but also a case where an OS (operating system) or the like functioning on the computer executes all the process or a part thereof according to the instructions of the program codes, thereby realizing the functions of the above embodiments. 
   Further, it is needless to say that the present invention further includes a case where the program codes read from the storage medium are once stored in a memory provided in a function expansion board inserted in the computer or a function expansion unit connected with the computer, and a CPU or the like provided in the function expansion board or the function expansion unit executes all the process or a part thereof according to the instructions of such program codes, thereby realizing the functions of the above embodiments. 
   Further, the present invention is applicable to a system composed of plural devices or to an apparatus including a single device. Further, it is needless to say that the present invention is applicable to a case where a program is supplied to a system or an apparatus to realize the functions of the above embodiments. In this case, when the storage medium storing the program represented by software for realizing the present invention is read by the system or the apparatus, such the system or the apparatus can derive the effects of the present invention. 
   Further, when the program represented by software for realizing the present invention is downloaded and read from a database on the network by a communication program, such the system or the apparatus can derive the effects of the present invention. 
   As described so far, according to the invention, a user designates, in a system configuration display state, icons for a group of plural devices in order to execute a composite function (e.g., a user drags a scanner icon and drops it on the icon of the digital copying machine  118  with the mouse  13  on the display screen showing the system configuration shown in  FIGS. 5 and 11  and the like). Then, a setting screen for the combination function is displayed (e.g., refer to the virtual operation panel on CRT  16  shown in  FIGS. 12 to 14  and the like), and in addition on this setting screen, a configuration image of the designated devices including option units equipped with the designated devices is displayed (e.g., refer to the system image MFI visually expressing the appearance of the whole image forming system including the main body of the digital copying machine  118  and each option unit such as a sorter connected with the main body, the system image being displayed in a display area above the display areas of the buttons B 5  to B 8  on the virtual operation panel). In accordance with the settings on the setting screen, the operation of a combination of the corresponding devices is controlled (e.g., as a user depresses the copy start button  415 , the scanner and digital copying machine operate in combination in accordance with the settings made by the user on the setting screen). The user can make settings for the composite function easily and efficiently on the setting screen for the composite or combination function, while visually confirming the state of the main body of another device remotely connected with the subject apparatus as well as the state of each option unit connected with the other device including a mount/dismount state, the type and shape of each option unit. 
   Further, the function buttons (e.g., buttons B 1  to B 6  on the virtual operation panel shown in  FIGS. 12 to 14  and the like) for the executable expansion function of the other device installed remotely from the subject apparatus are displayed in a desired layout order. It is therefore possible to set the expansion function of the device easily and efficiently. 
   Still further, the management-server acquires the resource file which indicates configuration image resources of devices. Accordingly, even if a maker provides a new device (including option units), without a complicated work of installing the resource file to all client machines on the network, all client machines on the network can display the configuration image corresponding to the new device (including option units) by simply installing the resource file only to the management server. 
   On the display screen (refer to the virtual operation panel shown in  FIGS. 12 to 14  and the like) which displays as the system image MFI the configuration image of the other device installed remotely from the subject apparatus including the option units of the other device, the function button (e.g., buttons B 1  to B 6  on the virtual operation panel shown in  FIGS. 12 to 14  and the like) for the expansion function executable by the other device and the function button (e.g., button B 7 ) for the function executable by the subject apparatus are displayed. These buttons are displayed on one setting display screen and arranged in the layout order desired by the user. Accordingly, the user can enter various settings by using one display screen and execute various functions, without being conscious about an execution of different functions provided by the subject apparatus and plural devices. 
   In accordance with the image processing conditions for the device installed remotely from the subject apparatus and the image processing conditions for the subject apparatus, respectively set on one setting display screen, the image data input from the other device is processed by the subject apparatus and output from the other device. Accordingly, by using each device on the network with a simple user work, the composite image data processed by an application of the data processing apparatus can be output to any desired device. 
   If a user cannot grasp all option units and expansion functions of each device, there is a possibility that the performance of each device cannot be demonstrated most effectively, the user cannot set each device as desired, or the user may abandon to set each device as desired. This problem can be solved. Even if the network environment can meet various needs of users, the system may not be utilized most effectively if users cannot grasp the system. This problem can also be solved. It has also been desired not only to realize a particular function by a combination of devices, but also to meet various complicated and sophisticated needs of users under advancement of technique. For example, a function together with composite image processing provided by a user computer is desired. This requirement can be met by an excellent user interface of the invention which is easy to use in dealing with an image processing request from users. 
   As above, according to the embodiments, under the system environment including the various devices, it is possible to visually recognize the configuration image of the devices (including the expansion function) desired by the user, to effectively use the entire system, and to flexibly meet various complicated and sophisticated needs of the user.