Printing system, printing method, printing apparatus and output apparatus

A CPU of a printing apparatus stores print data that is output from an output apparatus in a storage portion, and waits for the print switch on an operation panel to be operated before printing. If the print data pertaining to printing is administrative-use print data for which the output result is to be provided to a store clerk only once, then the CPU deletes the print data from the storage portion after printing. If the print data pertaining to printing is service-use print data for which the output result is to be repeatedly provided to customers, then the CPU continuously stores the print data in the storage portion after printing.

CROSS REFERENCE

This Nonprovisional application claims priority under 35 U.S.C. § 119(a) on Patent Application Nos. 2004-171213 and 2004-171214, both filed in Japan on Jun. 9, 2004, the entire contents of which are hereby incorporated by reference.

BACKGROUND OF THE INVENTION

The present invention relates to a printing system that is installed in, for example, a store in a state in which it is ready to be used by a plurality of users and that includes an output apparatus constituted by a personal computer or the like and a printing apparatus constituted by a digital copier or the like, as well as to a printing method performed in such a printing system, and a printing apparatus and an output apparatus that are included in the printing system.

A printing apparatus such as a digital copier may be installed in a store in a state in which it is ready to be used by a plurality of users. This printing apparatus outputs a printing medium that has been subjected to printing based on print data, not only for customers of the store, but also for a store manager or a store clerk.

When the store manager or the store clerk uses the printing apparatus installed in the store, there may be cases where the print data should not be disclosed to the public. In such cases, it is required that no customer is present near the printing apparatus. On the other hand, when the customers of the store use the printing apparatus, a plurality of the customers may request output of a single piece of information, so that it is necessary that the same print data can be repeatedly subjected to printing.

Therefore, as disclosed in JP S62-003322A, there are some conventional printing apparatuses that perform so-called “hold processing” by which print data that has been input from an external output apparatus is held in a storage portion together with unique authentication information, without being subjected to printing, and when the authentication information is input, the print data corresponding to the input authentication information is read from the storage portion and printed on a printing medium.

In addition, the print data to be provided to the customers of the store may include paid-for print data. In this case, the printing apparatus stores, in the storage portion, the amount to be paid for the print data as additional information, together with the authentication information and the print data, and waits for input of the authentication information and completion of billing before reading the corresponding print data from the storage portion.

In general, for print data that is subjected to the hold processing and thus is printed on a printing medium after input of the authentication information, the optimum holding state varies depending on the type of the print data.

However, none of the conventional printing apparatuses have performed the hold processing in a manner that allows the print data to be held in different states depending on the type of the print data.

For example, print data that is to be provided to a specific user (the store manager or the store clerk) often needs to be deleted from the storage portion after it has been printed on a printing medium, whereas print data that is to be provided to a non-specific user (the customer of the store) needs to be stored in the storage portion even after it has been printed on a printing medium. Furthermore, print data that is to be provided to a non-specific user may need to be revised with respect to its content or its additional information after it has been once stored in the storage portion.

It is an object of the present invention to provide a printing system, a printing method, a printing apparatus and an output apparatus that are capable of holding various print data in an optimum state in accordance with the types of the print data.

SUMMARY OF THE INVENTION

The present invention includes:

an output apparatus that outputs print data together with type information and authentication information that are input in an output apparatus side input portion; and

a printing apparatus that reads the print data corresponding to authentication information that is input in a printing apparatus side input portion from a storage portion to supply a printing portion, while selectively performing a new hold mode process of storing the print data and the authentication information in a new area in the storage portion or an update hold mode process of overwriting print data in the storage portion that corresponds to the same authentication information with the print data that is input from the output apparatus together with the authentication information, based on the type information input from the output apparatus.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

FIG. 1is a diagram showing a configuration of a printing system10according to a first embodiment of the present invention. The printing system10is installed in a store100. The printing system10is configured by connecting, to a digital copier1serving as the printing apparatus of the present invention, a personal computer (hereinafter, referred to as “PC”)2and a money processing device3.

The digital copier1is used for copying, facsimile transmission processing and the process of providing image information for a customer, as well as for printing performed by a store clerk. In copying, an image that has been read from an original brought in by a customer is printed on a printing medium such as paper. In the facsimile transmission processing, image information of an original brought in by a customer is transmitted via a public telephone network200to a facsimile device300that has been designated by the customer. During providing image information, an image is printed on a printing medium, based on print data that the customer has specified from among service-use print data stored in advance. In the printing, an image is printed on a printing medium, based on print data that the store clerk has specified from among administrative-use print data stored in advance.

The copying, the facsimile transmission processing, and the process of providing image information that are performed to a customer are carried out based on billing in the money processing device3. More specifically, prior to execution of the processes, the money processing device3receives cash or a charge card (e.g., a credit card or prepaid card) that is inserted by the customer, and transmits monetary information, such as the amount of cash that has been inserted or the credit limit of the card, to the digital copier1.

The digital copier1stores previously determined unit price information for the copying, the facsimile transmission processing and the process of providing image information. Based on the unit price information, the digital copier1performs operations relating to the copying, the facsimile transmission processing and the process of providing image information, without exceeding the limit of the monetary information transmitted from the money processing device3.

The service-use print data pertaining to the process of providing image information and the administrative-use print data that relates to printing have been transmitted in advance from the PC2. The distinctions of service use or administrative use correspond to the types of print data according to the present invention. Furthermore, the service-use print data is print data that is to be provided to a non-specific output target (the customer) according to the present invention, whereas the administrative-use print data is print data that is to be provided to a specific output target (the store clerk) according to the present invention.

The PC2adds at least type information and authentication information to the print data, and transmits the print data to the digital copier1. The type information is information for identifying whether the print data is to be provided to customers or is for in-house use. The authentication information is information for identifying each print data set, and is, for example, a four-digit code number. The customer or the store clerk inputs his or her own authentication information to the digital copier1, and then selects the desired print data.

The digital copier1serving as the printing apparatus is made up of a printing portion11, a paper-feed portion12and an image reading portion13. The printing portion11prints an image on a printing medium by, for example, an electrophotographic image forming operation. The paper-feed portion12houses the printing medium that is to be supplied to the printing portion11. The image reading portion13reads an image of an original that has been placed manually on an original platen (not shown), or an original that has been carried onto the original platen by an automatic document feeder14. In addition, the automatic document feeder14is disposed on the original platen of the image reading portion13so as to be opened and closed for exposing and covering the original platen.

The printing portion11and the paper-feed portion12are controlled by a process control unit (hereinafter, referred to as “PCU”)111. The image reading portion13is controlled by an image control unit (hereinafter, referred to as “ICU”)131. The automatic document feeder14is controlled by an original control unit (hereinafter, referred to as “OCU”)141.

Further, the digital copier1is provided with an operation panel (not shown) that includes key switches and a display. This operation panel is controlled by an operation panel control unit (hereinafter, referred to as “OPCU”)112. The key switches of the operation panel and the OPCU112correspond to the printing apparatus side input portion according to the present invention.

The PCU111, the ICU131, the OCU141and the OPCU112are all controlled by a central processing unit (hereinafter, referred to as “CPU”)113. The CPU113is connected to a memory114made up of a ROM and a RAM, a hard disk115serving as the storage portion of the present invention, a facsimile interface116for performing communication with the facsimile device300via the public telephone network200, and a printer interface117connected to the PC2.

The PC2serving as the output apparatus of the present invention is provided with a main unit21, a display22, a keyboard23and a mouse24. The keyboard23and the mouse24correspond to the output apparatus side input portion according to the present invention. The PC2reads print data from a recording medium such as a CD-ROM or a memory card, and receives operations performed by a piece of application software installed in the PC to create and edit the print data. The read-in print data or the print data that has been created or edited is stored in the main unit21, and then output to the digital copier1.

The money processing device3is provided with a control portion30that is constituted by a CPU31that includes a ROM32and a RAM33. The CPU31calculates the amount of, for example, coins inserted in a slot34, and outputs the amount as monetary data to the digital copier1.

The CPU113of the digital copier1temporarily stores the print data that has been input from the PC2in the hard disk115using a hold function, instead of printing the data immediately. The CPU113then reads, from the hard disk115, the print data that has been selected by operating a predetermined key switch on the operation panel to supply the PCU111, and performs the printing in the printing portion11.

FIG. 2is a diagram showing an example of display windows of the PC2serving as the output apparatus of the printing system10described above while outputting image data. When image data for which the reading, creating or editing operation has been completed in the PC2is output to the digital copier1, if a command to perform the printing is given in the currently executed application software, then a print setting window G2is displayed over a display window G1of the currently executed application software on the display22.

If a property button401is clicked while the digital copier1is selected on the print setting window G2as the printer for printing, then a driver software for the digital copier1that is installed in the PC2displays a detailed setting window G3for the digital copier1, over the windows G1and G2.

The detailed setting window G3displays input portions411to414for inputting type information, authentication information, billing information and retention information of print data, respectively, as well as an OK button416, and a Cancel button417.

The authentication information input portion411receives the selection of whether the print data that is to be output is administrative-use print data or service-use print data. The authentication information input portion412receives input of code data serving as the authentication information for identifying the print data that is to be output. This authentication information may be automatically added by the driver software. The billing information input portion413receives input of the amount of the fee to be collected from the customer for the service-use print data. The retention information input portion414receives input of the period for which the service-use print data is to be retained on the hard disk115.

It should be noted that the billing information input portion413and the retention information input portion414are not essential. The unit price of the service-use print data and the retention period of the service-use print data may be set to default values, thereby omitting input of the whole or a portion of the billing information and the retention information for each print data set. The OK button416and the Cancel button417will be described later.

When the OK button416is clicked after the whole or a portion of the type information, the authentication information, the billing information and the retention information of the print data is input on the detailed setting window G3, the driver software of the digital copier1adds this information to the print data being displayed on the display window G1, and then closes the detailed setting window G3. Subsequently, when the OK button402is clicked on the print setting window G2, the driver software of the digital copier1outputs the print data to which the predetermined information has been added to the digital copier1.

Thus, by receiving input of information, such as the type information, on the detailed setting window G3displayed by the driver software of the digital copier1, it is possible to readily add information, such as the type information, to the print data that is to be output from the PC2to the digital copier1, regardless of the type of the application software that is used during operation of reading, creating or editing images in the PC2.

It is also possible to install, in the PC2in advance, a piece of application software that is dedicated to the digital copier1for reading, creating or editing images, and to receive input of information, such as the type information, on the print setting window of that piece of application software.

FIGS. 3A and 3Bshow how print data is stored in the digital copier1serving as the printing apparatus of the printing system10described above. The hard disk115includes an administrative-use print data table TB1and a service-use print data table TB2shown inFIGS. 3A and 3B, which are separate from the area for storing print data. The CPU113classifies print data that has been input from the PC2into administrative-use print data and service-use print data by referring to the respective type information, and stores the authentication information, the billing information and the retention information that are added to each set of the classified data into either the table TB1or TB2.

The administrative-use print data table TB1is made up of the following entries: the time and date of input, the code number (authentication information), the file name, and the name of file creator that relate to each set of administrative-use print data. The service-use print data table TB2is made up of the following entries: the time and date of input, the code number (authentication information), the file name, the number of pages and the unit price (billing information) that relate to each set of service-use print data. It should be noted that each of the file name, the name of file creator and the number of pages is information that is commonly added to print data.

The entries constituting the tables TB1and TB2are not limited to the examples shown inFIGS. 3A and 3B, as long as they include at least the authentication information. For example, the entries constituting the service-use print data table may include the retention information.

The tables TB1and TB2are displayed on the display that is included on the operation panel of the digital copier1. That is, when the store clerk or the customer operates a predetermined key switch included on the operation panel of the digital copier1, and thereby selects the print data that is stored in the digital copier1by a holding function to be output, the CPU113supplies the content of the table TB1or TB2to the OPCU112, and the OPCU112displays the content of the table TB1or TB2on the display included on the operation panel.

While displaying the content of the table TB1or TB2on the display, the OPCU112receives an operation performed by the store clerk or the customer selecting a single print data set. This selection is performed, for example, by operating the key switches included on the operation panel to input the authentication information. In this case, it is sufficient that at least the authentication information is displayed on the display, and not all the entries constituting the tables TB1and TB2need to be displayed.

It is also possible to dispose a touch panel on the display so as to-allow the store clerk or the customer to select the print data that he or she wishes to output by pressing the touch panel based on the file name displayed on the display. In this case, although at least the file name needs to be displayed on the display, the code number serving as the authentication information need not be displayed.

FIGS. 4 and 5are flowcharts illustrating the printing method in the above-described printing system10according to the present invention.FIG. 4shows the processing procedure in the PC2that constitutes the printing system10, and FIG.5shows the processing procedure in the digital copier1of the printing system10. When preparation of the print data is completed in the PC2by the reading, creating or editing operation (S1), and output of the print data by the digital copier1is selected (S2), the PC2displays the detailed setting window G3, shown inFIG. 2, on the display22, and receives input of the information that is to be added to the print data (S3). At this time, only the Cancel button417and the type information input portion411are enabled on the detailed setting window G3, and the PC2receives input of the type information first (S4).

If the type information that is received indicates that the print data is administrative-use print data, then the PC2enables the authentication information input portion412, and receives input of the authentication information (S5, S6). As described above, the code number serving as the authentication information may be automatically assigned by the PC2, thereby omitting the processing of S6.

Once the authentication information has been received, the PC2waits for the OK button416to be clicked before adding the type information and the authentication information to the print data, and then outputs the print data to the digital copier1(S7, S8, S9). If the Cancel button417is operated, then the PC2clears the type information input portion411and the authentication information input portion412, and the procedure returns to S2(S10to S2).

If the type information that is received indicates that the print data is service-use print data, then the PC2enables the authentication information input portion412, the billing information input portion413and the retention information input portion414, and receives input of the authentication information, the billing information and the retention information (S5to S11, S12, S13). As described above, the code number serving as the authentication information may be automatically assigned by the PC2, and the billing information indicating the unit price of the service-use print data and the retention information for determining when the print data is to be deleted after the printing may be set to default values, thereby omitting the processing of S11through S13.

Once the authentication information, the billing information and the retention information have been received, the PC2waits for the OK button416to be clicked before adding the type information, the authentication information, the billing information and the retention information to the print data, and then outputs the print data to the digital copier1(S14, S15, S16). If the Cancel button417is operated, then the PC2clears the type information input portion411, the authentication information input portion412, the billing information input portion413and the retention information input portion414, and the procedure returns to S2(S17to S2).

Upon receiving input of the print data from the PC2, the CPU113of the digital copier1reads the type information added to the print data (S31, S32). If the input print data is administrative-use print data, then the CPU113stores the print data, together with at least the authentication information, in a new area within the area for storing print data in the hard disk115(S33, S34). Furthermore, the CPU113stores the information added to the input print data in the administrative-use print data table TB1(S35).

If the input print data is service-use print data, then the CPU113stores the print data, together with at least the authentication information, in a new area within the area for storing print data in the hard disk115(S37). Further, the CPU113stores the information added to the input print data in the service-use print data table TB2(S38).

A store clerk or a customer who wishes to output the print data stored in the digital copier1inputs the type information and the authentication information on the operation panel, and operates a print switch. When the print switch included on the operation panel is operated, the CPU113determines which one of the administrative-use print data and the service-use print data is selected (S41, S42).

In addition, when the authentication information for identifying the service-use print data that the customer wishes to output is a code number, it is possible to inform the customer of the correlation between the service-use print data and the code number, for example, by posting the correlation near the digital copier1, or displaying it on a large display included with the digital copier1.

If the administrative-use print data is selected, then the CPU113reads the print data that matches the input authentication information from the hard disk115to supply the PCU111, and prints out based on the print data (S43). Upon completion of this printing, the CPU113deletes the print data from the hard disk115(S44). At this time, the CPU113also deletes the corresponding data from the administrative-use print data table TB1.

If the service-use print data is selected, then the CPU113reads the billing information added to print data that matches the input authentication information (S45), waits for completion of billing performed based on the monetary information transmitted from the money processing device3before reading the print data that matches the input authentication information from the hard disk115to supply the PCU111, and prints out based on the print data (S46, S47).

If there is no print data that matches the input authentication information present in the hard disk115, then the CPU113displays a message on the display included on the operation panel to the effect that there is no print data.

Additionally, during standby for the processing operations, the CPU113refers to the retention information in the service-use print data table TB2at predetermined time intervals, and deletes from the hard disk115any service-use print data whose time has come to be deleted.

As described above, in the printing system10, the process of deleting or continuously storing the print data from or onto the hard disk115after printing, is selectively performed according to the type of the print data pertaining to the printing, that is, depending on whether the print data is administrative-use print data for which the output result is to be provided only at a single occasion for the store clerk, who is a specific output target, or service-use print data for which the output result is to be repeatedly provided to the customers, who are non-specific output targets. Accordingly, print data can be stored in the digital copier1in an optimum state in accordance with the type of the print data.

FIG. 6is a diagram showing an example of display windows of a PC serving as the output apparatus of a printing system10according to a second embodiment of the present invention while outputting image data. It should be noted that the printing system10of the second embodiment has the same configuration as the printing system10of the first embodiment shown inFIG. 1, except that the digital copier1and the program installed in the PC2are different from those in the printing system10of the first embodiment shown inFIG. 1. Therefore, the processing operations of the digital copier1, part of the display windows on the display22of the PC2, and part of the processing operations of the PC2are different from those in the printing system10of the first embodiment shown inFIG. 1.

When image data for which the reading, creating, or editing operation has been completed in the PC2of the printing system10according to the second embodiment is output to the digital copier1, if a command to perform the printing is provided in the currently executed application software, then the print setting window G2is displayed over the display window G1of the currently executed application software on the display22.

If a property button401is clicked while the digital copier1is selected on the print setting window G2as the printer for printing, then a driver software for the digital copier1that is installed in the PC2displays a detailed setting window G4for the digital copier1, over the windows G1and G2.

The detailed setting window G4displays input portions411to415for inputting type information, authentication information, additional information, deletion information and retention information, respectively, of print data, as well as the OK button416, the Cancel button417and a mode selection input portion418.

The authentication information input portion411receives the selection of whether the print data that is to be output is administrative-use print data or service-use print data. The authentication information input portion412receives input of code data serving as the authentication information for identifying the print data that is to be output. This authentication information may be automatically added by the driver software. The additional information input portion413receives input of the amount of the fee to be collected from the customer for the service-use print data. The deletion information input portion414receives the selection of whether to store or to delete the print data in or from the hard disk115after the printing, for the administrative-use print data. The retention information input portion415receives input of the period for which the service-use print data is to be stored in the hard disk115.

It should be noted that the input portions413to415for inputting the additional information, the deletion information and the retention information, respectively, of print data are not essential. The unit price of the service-use print data, whether to delete the administrative-use print data after the printing, and the retention period of the service-use print data may be set to default values, thereby omitting input of the whole or a portion of the additional information, the deletion information and the retention information for each print data set.

The OK button416, the Cancel button417and the mode selection input portion418will be described later.

When the OK button416is clicked after the whole or a portion of the type information, the authentication information, the additional information, the deletion information and the retention information of the print data is input on the detailed setting window G4, the driver software of the digital copier1adds this information to the print data being displayed on the display window G1, and then closes the detailed setting window G4. Subsequently, when the OK button402is clicked on the print setting window G2, the driver software of the digital copier1outputs the print data to which the predetermined information has been added to the digital copier1.

Thus, by receiving input of information, such as the type information, on the detailed setting screen G4displayed by the driver software of the digital copier1, it is possible to readily add information, such as the type information, to the print data that is to be output from the PC2to the digital copier1, regardless of the type of the application software that is used during operation of reading, creating or editing images in the PC2.

It is also possible to install, in the PC2in advance, a piece of application software that is dedicated to the digital copier1for reading, creating or editing images, and to receive input of information, such as the type information, on the print setting screen of that piece of application software.

FIGS. 7A and 7Bshow how print data is stored in the digital copier1serving as the printing apparatus of the printing system10according to the second embodiment. The hard disk115includes an administrative-use print data table TB3and a service-use print data table TB4shown inFIGS. 7A and 7B, which are separate from the area for storing print data. The CPU113classifies print data that has been input from the PC2into administrative-use print data and service-use print data, based on the respective type information, and stores the authentication information, the additional information, the deletion information and the retention information that are added to each set of the classified data into either the table TB3or TB4.

The administrative-use print data table TB3is made up of the following entries: the time and date of input, the code number (authentication information), the file name, the name of file creator and the deletion information that relate to each set of administrative-use print data. The service-use print data table TB4is made up of the following entries: the date of input, the code number (authentication information), the file name, the number of pages and the unit price (additional information) that relate to each set of service-use print data. It should be noted that each of the file name, the name of file creator and the number of pages is information that is commonly added to print data.

The entries constituting the tables TB3and TB4are not limited to the examples shown inFIGS. 7A and 7B, as long as they include at least the authentication information. For example, the entries constituting the service-use print data table may include the retention information.

The tables TB3and TB4are displayed on the display that is included on the operation panel of the digital copier1. That is, when the store clerk or the customer operates a predetermined key switch included on the operation panel of the digital copier1, and thereby selects the print data that is stored in the digital copier1by a holding function to be output, the CPU113supplies the content of the table TB3or TB4to the OPCU112, and the OPCU112displays the content of the table TB3or TB4on the display included on the operation panel.

While displaying the content of the table TB3or TB4on the display included on the operation panel, the OPCU112receives an operation performed by the store clerk or the customer selecting a single print data set. This selection is performed, for example, by input of the authentication information by operating the key switches included on the operation panel. In this case, it is sufficient that at least the authentication information is displayed on the display included on the operation panel, and not all the entries constituting the tables TB3and TB4need to be displayed.

It is also possible to dispose a touch panel on the display included on the operation panel so as to allow the store clerk or the customer to select the print data that he or she wishes to output by pressing the touch panel based on the file name displayed on the display included on the operation panel. In this case, although at least the file name needs to be displayed on the display included on the operation panel, the code number serving as the authentication information need not be displayed.

FIGS. 8 and 9are flowcharts illustrating the printing method of the printing system10according to the second embodiment.FIG. 8shows the processing procedure in the PC2that constitutes the printing system10, andFIG. 9shows the processing procedure in the digital copier1of the same printing system10. When preparation of the print data is completed in the PC2by the reading, creating or editing operation (S101), and output of the print data by the digital copier1is selected (S102), the PC2displays the detailed setting window G4, shown inFIG. 6, on the display22, and receives input of the information that is to be added to the print data (S103). At this time, only the Cancel button417and the type information input portion411are enabled on the detailed setting window G4, and the PC2receives input of the type information first (S104).

If the type information that is received indicates that the print data is administrative-use print data, then the PC2enables the authentication information input portion412and the deletion information input portion414, and receives input of the authentication information and the deletion information (S105to S106). As described above, the code number serving as the authentication information maybe automatically assigned by the PC2, and the deletion information indicating whether to delete or to store the print data after the printing may be set to a default value, thereby omitting the processing of S106.

Once-the authentication information and the deletion information have been received, the PC2waits for the OK button416to be clicked, adds the type information, the authentication information, and the deletion information to the print data, and then outputs the print data to the digital copier1(S107, S108, S109). If the Cancel button417is operated, then the PC2clears the type information input portion411, the authentication information input portion412and the deletion information input portion414, and the procedure returns to S102(S110to S102).

If the type information that is received indicates that the print data is service-use print data, then the PC2receives a mode selection between a new hold mode process or an update hold mode process, in the mode selection input portion418(S111). The new hold mode process is a process of writing the service-use print data onto the hard disk115as new print data. The update hold mode process is a process of overwriting the print data that is already stored in the hard disk115with the service-use print data that is to be output the present time.

The update hold mode process is performed, for example, when the service content is changed in accordance with the state of customer utilization, after specific service-use print data is stored in the digital copier1for provision to the customer. The service-use print data that is updated in the update hold mode process includes not only print data itself, but also the additional information, which is the unit price of the print data. Therefore, the update hold mode process is also performed in the case where the unit price is reduced when the degree of customer utilization is low.

Additionally, since the process of deleting print data from the hard disk115after the printing is usually selected as the deletion information for the administrative-use print data, only a process similar to the new hold mode process is performed.

If the new hold mode process is selected in S111, then the PC2enables the authentication information input portion412, the additional information input portion413and the retention information input portion415, and receives input of the authentication information, the additional information and the retention information (S112, S113, S114, S115). As described above, the code number serving as the authentication information may be automatically assigned by the PC2, and the retention information for determining when the print data is to be deleted after the printing may be set to a default value, thereby omitting the processing of S113and S115.

Once the authentication information, the additional information and the retention information have been input, the PC2waits for the OK button416to be clicked, adds new mode information, as well as the type information, the authentication information, the additional information and the retention information, to the print data, and then outputs the print data to the digital copier1(S116, S117, S118) If the Cancel button417is operated, then the PC2clears the type information input portion411, the authentication information input portion412, the additional information input portion413and the retention information input portion415, and the procedure returns to S102(S119to S102).

If the update hold mode process is selected in S111, then the PC2enables the authentication information input portion412, the additional information input portion413and the retention information input portion415, and receives input of the authentication information, the additional information and the retention information (S112, S120, S121, S122). As described above, the code number serving as the authentication information may be automatically assigned by the PC2, and the retention information for determining when the print data is to be deleted after the printing may be set to a default value, thereby omitting the processing of S120and S122.

Once the authentication information, the additional information and the retention information have been received, the PC2waits for the OK button416to be clicked, adds update mode information, as well as the type information, the authentication information, the additional information and the retention information, to the print data, and then outputs the print data to the digital copier1(S123, S124, S125). If the Cancel button417is operated, then the PC2clears the type information input portion411, the authentication information input portion412, the additional information input portion413and the retention information input portion415, and the procedure returns to S102(S126to S102).

Upon receiving input of the print data from the PC2, the CPU113of the digital copier1reads the type information added to the print data (S131, S132). If the input print data is administrative-use print data, then the CPU113stores the print data, together with at least the authentication information, in a new area within the area for storing print data in the hard disk115(S133, S134). Furthermore, the CPU113stores the information added to the input print data in the administrative-use print data table TB3(S135).

If the input printing data is service-use print data, then the CPU113determines which one of the new mode information and the update mode information is added to the print data (S136) If the new mode information is added, then the CPU113stores the printing data, together with at least the authentication information, in a new area within the area for storing printing data in the hard disk115(S137). Further, the CPU113stores the information added to the input print data in the service-use print data table TB4(S138).

If the update mode information is added, then the CPU113overwrites the currently input print data on the area storing a print data set that is included in the print data stored in the hard disk115and to which authentication information identical to the authentication information added to the currently input printing data is added (S139). Further, the CPU113overwrites, with the information added to the input print data, information that is included in the service-use print data table TB4and to which the same authentication information is added (S140).

A store clerk or a customer who wishes to output the print data stored in the digital copier1inputs the type information and the authentication information on the operation panel, and operates a print switch. When the print switch included on the operation panel is operated, the CPU113determines which one of the administrative-use print data and the service-use print data is selected (S141, S142).

In addition, when the authentication information for identifying the service-use print data that the customer wishes to output is a code number, it is possible to inform the customer of the correlation between the service-use print data and the code number, for example, by posting the correlation near the digital copier1, or displaying it on a large display included with the digital copier1.

If the administrative-use print data is selected, then the CPU113reads print data that matches the input authentication information from the hard disk115to supply the PCU111, and prints out based on the print data (S143). Upon completion of this printing, the CPU113determines the content of the deletion information added to the print data (S144), and deletes or stores the print data from or in the hard disk115in accordance with the content of the deletion information (S145, S146). In the case of deleting the printing data from the hard disk115, the CPU113also deletes the corresponding data from the administrative-use print data table TB3.

If the service-use print data is selected, then the CPU113reads the additional information added to print data that matches the input authentication information (S147), and determines whether billing is necessary (S148). If billing is necessary, then the CPU113waits for completion of billing performed based on the monetary information transmitted from the money processing device3before reading the print data that matches the input authentication information from the hard disk115to supply the PCU111, and prints out based on the print data (S149, S150).

If there is no print data that matches the input authentication information is present in the hard disk115, then the CPU113displays a message on the display included on the operation panel to the effect that there is no print data.

Additionally, during standby for the processing operations, the CPU113refers to the retention information in the service-use print data table TB4at predetermined time intervals, and deletes from the hard disk115any service-use print data whose time has come to be deleted.

As described above, in the printing system10, print data itself and information added to the print data can be changed by the update hold mode process, for print data that has been temporarily stored in the hard disk115. Accordingly, it is possible, for example, to readily change the service content in accordance with the state of customer utilization, for example, after storing specific service-use print data in the digital copier1for provision to the customer. Consequently, it is possible to increase the number of modes of operation of the digital copier1installed in the store, thus providing improved services to the customers.

Finally, the embodiments described above are to be considered in all respects as illustrative and not limiting. The scope of the invention is indicated by the appended claims rather than by the foregoing embodiments. Furthermore, all changes which come within the meaning and range of equivalency of the claims are intended to be embraced in the scope of the invention.