Patent Publication Number: US-2016246555-A1

Title: Information processing device, display method for information processing device, and program

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     The entire disclosure of Japanese Patent Application No. 2015-033135, filed Feb. 23, 2015 is expressly incorporated by reference herein. 
     BACKGROUND 
     1. Technical Field 
     The present invention relates to an information processing device which displays a medium image of a print medium, a display method for an information processing device, and a program. 
     2. Related Art 
     Traditionally, JP-A-9-109479 is known as a technique of this type. JP-A-9-109479 discloses a technique in which the color of a print medium is discriminated on the basis of the type of a tape cartridge that is loaded, so that a tape preview is displayed in a display color corresponding to the discriminated color. 
     Meanwhile, a method in which print data is generated in an information processing device and then transmitted to a tape printing device so as to prepare a label is recently known. With this configuration, simplification and cost reduction of the tape printing device can be achieved and operability at the time of editing print data is improved as well. However, in the case where print data is generated in the information processing device in this way, there is the risk that even if a tape preview is displayed in a display color corresponding to the discriminated color as in JP-A-9-109479, the display color may be different from the actual label color, depending on the characteristics of the display screen installed in the information processing device. 
     Thus, in order to avoid such a problem, it is conceivable that a profile for changing the display color of the tape preview according to the display screen of the information processing device may be prepared and stored in the information processing device. However, a massive amount of data is expected to be generated because of the number of colors to deal with and therefore this measure is not practical. Also, while a method in which the profile corresponding to the display screen of the information processing device is acquired from a server or the like on the internet is conceivable, the way the display color looks varies depending on the user&#39;s environment of use (lighting, screen setting and the like) and therefore is hard to cope with. 
     SUMMARY 
     An advantage of some aspects of the invention is to provide an information processing device capable of displaying a medium image in a display color close to the medium color of the actual print medium regardless of the characteristic of the display screen and the user&#39;s environment of use, a display method for an information processing device, and a program. 
     According to an aspect of the invention, an information processing device which displays a medium image of a print medium includes: an acquisition unit which acquires medium information including information that can specify a medium color of the print medium; an option display unit which displays a plurality of options to be display color candidates for the medium image, on the basis of the medium information; a selection unit which selects an arbitrary option from the plurality of options; and a preview display unit which displays the medium image in a display color corresponding to the arbitrary option. 
     According to another aspect of the invention, a display method for an information processing device which displays a medium image of a print medium includes: acquiring medium information including information that can specify a medium color of the print medium; displaying a plurality of options to be display color candidates for the medium image, on the basis of the medium information; selecting an arbitrary option from the plurality of options; and displaying the medium image in a display color corresponding to the arbitrary option. 
     According to these configurations, a plurality of options to be display color candidates for the medium image is displayed on the basis of the medium information acquired, and the medium image is displayed in the color selected from the options. Therefore, the medium image can be displayed in a display color which the user feels close to the actual medium color, regardless of the characteristics of the display screen and the user&#39;s environment of use. Also, since a profile or the like for changing the display color according to the characteristics of the display screen is not needed, the development of the application is easy. 
     In the information processing device, the option display unit may display a predetermined number of display color candidates showing colors similar to the medium color of the print medium, as the plurality of options. 
     According to this configuration, since display color candidates showing colors similar to the medium color of the print medium are displayed as the plurality of options, the selection of an option by the user can be made more easily than in the case where not only similar colors but also full-color display color candidates are displayed. Also, since a predetermined number of display color candidates are displayed, the number of options does not increase or decrease depending on the medium color, and the selection can be made easily. 
     In the information processing device, the medium information may include information that can specify a print color of the print medium. The option display unit may display a first option group that is a plurality of options to be display color candidates for the medium image and a second option group that is a plurality of options to be display color candidates for an image preview of a print image to be printed on the print medium, on the basis of the medium information. The selection unit may select a first option and a second option from the first option group and the second option group, respectively. The preview display unit may display the image preview in a display color corresponding to the second option, as superimposed on the medium image in a display color corresponding to the first option. 
     According to this configuration, not only the medium image but also the image preview of the print image to be printed on the print medium can be displayed in a display color which the user feels close to the actual print color. 
     In the information processing device, the medium information may include information that can specify a print color of the print medium. The option display unit may display a plurality of preview samples in which an image preview of a print image to be printed on the print medium is displayed as superimposed on the medium image, as the plurality of options. The plurality of preview samples may differ at least in one of the display color of the medium image and the display color of the image preview. 
     According to this configuration, since a plurality of preview samples in which an image preview of the print image to be printed on the print medium is displayed as superimposed on the medium image is displayed as the plurality of options, the user can perform a selection operation, imagining the actual label to be prepared. 
     The information processing device may further include a storage unit which stores a result of selection of the arbitrary option by the selection unit. The option display unit may display a plurality of options to be display color candidates for the medium image in consideration of the result of selection stored in the storage unit. 
     According to this configuration, the results of selection in the past are learned and a plurality of options reflecting the result of learning is displayed. Therefore, the user&#39;s selection operation can be assisted. For example, if, from among display color candidates with five different levels of brightness, the display color candidate with the lowest level is selected previously, display color candidates around the display color candidate with the lowest level as the center value may be displayed this time, or the like. In this case, the user can quickly find out his or her preferred display color by examining the display color candidates from the center value. 
     In the information processing device, the preview display unit may display the medium image in a reference color corresponding to the medium color of the print medium when the medium information is acquired by the acquisition unit. The preview display unit may change the medium image to the display color corresponding to the arbitrary option when the arbitrary option is selected by the selection unit. 
     According to this configuration, the medium image is displayed in the reference color corresponding to medium color of the print medium at the point when the medium information is acquired. Therefore, the user can change the display color only when the user find the reference color unfitting. That is, unnecessary selection operations in the case where the reference color does not look unfitting can be omitted. 
     In the information processing device, the print medium may be a long print tape. The medium image may be a preview of a label formed by cutting the print tape into a strip. 
     According to this configuration, in the case of preparing a label, the preview in the medium color largely influences the preview of the resulting product. Therefore, displaying the medium image in a display color close to the actual medium color enables preparation of a label desired by the user. 
     According to still another aspect of the invention, a program causes a computer to execute each process in the display method for the information processing device. 
     Using this program, a display method for an information processing device capable of displaying a medium image in a display color close to the medium color of the actual print medium regardless of the characteristics of the display screen and the user&#39;s environment of use can be achieved. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention will be described with reference to the accompanying drawings, wherein like numbers reference like elements. 
         FIG. 1  shows the configuration of a print system according to an embodiment of the invention. 
         FIG. 2  is a block diagram showing the hardware configuration of a PC. 
         FIG. 3  is a block diagram showing the hardware configuration of a tape printing device. 
         FIG. 4  is a block diagram showing the functional configuration of the PC. 
         FIG. 5  shows an example of an editing screen. 
         FIG. 6  shows an example of an editing screen and a label preview selection screen. 
         FIG. 7  is a flowchart showing the flow of print data generation processing by the PC. 
         FIG. 8  shows an example of an editing screen and a label preview selection screen according to Modification 1. 
     
    
    
     DESCRIPTION OF EXEMPLARY EMBODIMENTS 
     Hereinafter, the information processing device, the display method for the information processing device and the program according to an embodiment of the invention will be described, referring to the accompanying drawings. In this embodiment, the case where the information processing of the invention is applied to a personal computer (hereinafter referred to as “PC”)  2  will be described as an example. The PC  2  can communicate with a tape printing device  3  which prints on a long print medium (hereinafter referred to as “print tape T”) and thus prepares a label. 
       FIG. 1  shows the configuration of a print system SY according to an embodiment of the invention. As shown in  FIG. 1 , the print system SY includes the PC  2  and the tape printing device  3 . 
     The PC  2  has a typical computer configuration including a PC main body  21 , a display screen  22 , a keyboard  23 , a mouse  24  and the like. The PC  2  communicates with the tape printing device  3  via a USB cable  40 . The communication between the PC  2  and the tape printing device  3  is not limited to the USB standards and may use other standards such as Ethernet (trademark registered). Wireless communication standards such as Bluetooth (trademark registered) may also be used. 
     When a tape cartridge  31  accommodating the long print tape T and an ink ribbon is loaded in the tape printing device  3  and print data is received from the PC  2 , the tape printing device  3  performs print processing and cutting processing while reeling off the print tape T from the tape cartridge  31 . After the cutting processing, the printed part of the print tape T is discharged from a tape discharge port  32  and used as a label. 
     Next, the hardware configurations of the PC  2  and the tape printing device  3  will be described, referring to  FIGS. 2 and 3 .  FIG. 2  is a block diagram of the PC  2 . The PC  2  includes, as its hardware configuration, a USB communication unit  25 , an HDD (hard disk drive)  26  and a PC-side control unit  28  in addition to the display screen  22 , the keyboard  23  and the mouse  24  shown in  FIG. 1 . 
     The display screen  22  displays various kinds of information such as an editing screen D 1  for label editing (see  FIG. 5  and the like). The keyboard  23  and the mouse  24  are used to perform selection operations on various options and editing operations. The USB communication unit  25  communicates with the tape printing device  3  on the basis of the USB communication standards. 
     The HDD  26  stores an OS (operating system)  26   a  and a dedicated application  26   b . The dedicated application  26   b  is an application to generate print data to be outputted to the tape printing device  3 . The editing screen D 1  is a screen displayed as a function of the dedicated application  26   b.    
     The PC-side control unit  28  is materialized by a CPU (central processing unit) and a RAM (random access memory) or the like, and performs print data generation processing and communication control with the tape printing device  3  in collaboration with each of the above component units (reference numbers  22  to  26 ). 
       FIG. 3  is a block diagram of the tape printing device  3 . The tape printing device  3  includes a USB communication unit  33 , a cartridge detection unit  34 , a print mechanism  35  and a printing device-side control unit  36 , as its hardware configuration. 
     The USB communication unit  33  communicates with the PC  2  via USB communications. The cartridge detection unit  34  detects tape information (medium information) about the print tape T accommodated in the tape cartridge  31 . In this embodiment, the tape color (medium color) of the print tape T, the ink color (print color) to be printed on the print tape T, and the tape type (material, whether it is a cut label that is cut into a circle, ellipse or wounded corners in advance, and the like) are detected as the tape information. As the detection method, reading a code image (barcode, two-dimensional code or the like) or RFID (radio frequency identification) attached or printed on the tape cartridge  31 , or detecting one or more holes formed in the tape cartridge  31 , or the like is conceivable. Also, the print tape T reeled off from the tape cartridge  31  may be detected with various sensors, instead of detecting the tape cartridge  31 . 
     The print mechanism  35  includes a print head  41 , a tape feed motor  42 , a cutter motor  43  and a tape cutter  44 . The print head  41  is a thermal head and performs printing, with the print tape T and the ink ribbon that are reeled off being sandwiched between the print head  41  and a platen roller (not illustrated). The tape feed motor  42  carries the print tape T that is reeled off, from the print head  41  toward the tape discharge port  32  (see  FIG. 1 ). The cutter motor  43  drives the tape cutter  44  to cut the printed part of the print tape T in the direction of tape width in the state where the tape feeding is temporarily stopped. 
     The printing device-side control unit  36  is materialized by a CPU, a RAM and the like and performs communication control and print control with the PC  2  in collaboration with each of the above component units (reference numbers  33  to  35 ). Specifically, when the tape cartridge  31  is loaded or when an inquiry is received from the PC  2 , the printing device-side control unit  36  sends the tape information detected by the cartridge detection unit  34  to the PC  2  via the USB communication unit  33 . Also, the printing device-side control unit  36  receives print data from the PC  2  via the USB communication unit  33  and controls the print mechanism  35  on the basis of the print data. 
     Next, the functional configuration of the PC  2  will be described, referring to  FIG. 4 . The PC  2  has an acquisition unit  51 , a display unit  52 , a selection unit  53 , a print data editing unit  54  and an output unit  55 , as its functional configuration. These units are functions provided mainly by the dedicated application  26   b  (see  FIG. 2 ). 
     The acquisition unit  51  acquires tape information detected by the cartridge detection unit  34  of the tape printing device  3 . The tape information includes information indicating the tape color of the print tape T and information indicating the ink color of the ink ribbon. Also, the identification information of the tape cartridge  31  may be acquired and the tape color of the print tape T and the ink color of the ink ribbon may be specified as the tape information from the identification information, referring to a correspondence table incorporated in the dedicated application  26   b.    
     The display unit  52  includes an option display unit  52   a  and a preview display unit  52   b . The preview display unit  52   b  displays a layout of a label in an editing screen D 1  (layout editing area E 2 , described later). Specifically, an image preview  72  imitating a print image is displayed as superimposed on a tape preview  71  imitating the print tape T (see  FIG. 5  and the like). Hereinafter, the tape preview  71  and the image preview  72  are collectively referred to as a “label preview  70 ”. Meanwhile, the option display unit  52   a  displays a label preview selection screen D 2  (see  FIG. 6 ) on the basis of the tape information acquired by the acquisition unit  51 . The label preview selection screen D 2  includes a first option group (reference number  81 ) which provides display color candidates for the tape preview  71  to be displayed, and a second option group (reference number  82 ) which provides display color candidates for the image preview  72 . 
     The selection unit  53  selects a first option (arbitrary option) and a second option from the first option group (reference number  81 ) and the second option group (reference number  82 ), respectively, on the basis of the operation on the keyboard  23  or the mouse  24  by the user. These selections are operations carried out to correct the display colors when the user feels that the tape color and the print color of the actual label are different from the display color of the tape preview  71  and the display color of the image preview  72  that are displayed as previews. The preview display unit  52   b  displays the tape preview  71  in the display color corresponding to the first option and displays the image preview  72  in the color corresponding to the second option, according to the selections by the selection unit  53 . 
     The print data editing unit  54  edits the tape preview  71  and the image preview  72  displayed by the preview display unit  52   b , on the basis of the operation on the keyboard  23  or the mouse  24  by the user. The content of editing includes change in the tape length, input of a text, insertion of a graphic pattern, change in the font, size and decoration of the text, change in the type of line of the graphic pattern and painting out on the surface, or the like. The output unit  55  outputs print data reflecting the results of editing by the print data editing unit  54 , to the tape printing device  3 . 
     Next, the editing screen D 1  and the label preview selection screen D 2  will be described using a specific example with reference to  FIGS. 5 and 6 .  FIG. 5  shows an example of display of the editing screen D 1  before tape information is acquired. As shown in  FIG. 5 , the editing screen D 1  includes a tape setting area E 1  in the left part of the screen and a layout editing area E 2  in the right part of the screen. 
     The tape setting area E 1  includes an area  61  for selecting a machine type, a tape information acquisition button  62  used to acquire tape information, an area  63  for selecting a tape type, an area  64  for selecting a tape width, an area  65  for selecting a magnification in the case of printing on joined tapes, an area  66  for displaying and designating a tape length, an area  67  for changing the tape length setting, an area  68  for designating a margin length, and an area  69  for selecting a direction of placing the print tape T. 
     In the area  61 , the machine type of the tape printing device  3  that is connected is selected. The tape information acquisition button  62 , when pressed, acquires tape information about the print tape T (tape cartridge  31 ) loaded in the tape printing device  3 . In the area  63 , “cut label” is selected when a cut label is used, and “normal” is selected if otherwise. In the area  64 , the tape width of the print tape T loaded in the tape printing device  3  is selected. The information about the tape width may be acquired as a part of the tape information and may be reflected in the area  64 . In the area  65 , the number of tapes joined (magnification) in the case of using a plurality of print tapes T joined together in the direction of tape width is selected. 
     In the area  67 , either “automatic” for automatically adjusting the length of the print tape T according to the length of the print image in the direction of tape length or “designated length” for preparing a length with a length designated in the area  66  is selected. In the area  66 , an automatically adjusted tape length is displayed if “automatic” is selected in the area  67 , whereas a tape length is designated if “designated length” is selected in the area  67 . In the area  68 , forward and back margins of the label are designated in the form of numeric values. In the area  69 , either “right arrow” for displaying the label preview  70  horizontally placed with the text horizontally written or “down arrow” for displaying the label preview  70  vertically placed with the text vertically written is selected. 
     Meanwhile, in the layout editing area E 2 , the label preview  70  in which the image preview  72  showing the print image (in  FIG. 5 , the text “ABC”) is superimposed on the tape preview  71  showing the print tape T (in  FIG. 5 , the white rectangle) is displayed. Also, a dashed-line frame  75  indicating the print range and a plurality of handles  76  (in  FIG. 5 , eight handles) for changing the position and size of the inputted text (text block) are displayed as superimposed on the label preview  70 . The handles  76  become hidden when the position and size of the text are finalized. Also, scroll bars  77 ,  78  are provided in a bottom part and a right-side part of the layout editing area E 2 . 
     If the tape information acquisition button  62  is clicked on in the editing screen D 1  shown in  FIG. 5 , the label preview selection screen D 2  is displayed as a pop-up screen, as shown in  FIG. 6 . Also, the label preview  70  in the layout editing area E 2  is displayed in the reference color corresponding to the acquired tape information. For example, if the tape information includes information indicating “tape color: red” and “ink color: white”, the tape preview  71  is displayed in the reference color of “red” and the image preview  72  is displayed in the reference color of “white”. At this point, the color of the dashed-line frame  75  and/or the handles  76  may be changed with the change in the display color of the tape preview  71 . A correspondence table in which the correspondence between tape information and the reference color is defined and a correspondence table for selecting a similar color (described later) corresponding to the reference color are provided by the dedicated application  26   b.    
     On the label preview selection screen D 2 , a color chip group  81  made up of a plurality of color chips for selecting a tape color and a color chip group  82  made up of a plurality of color chips for selecting an ink color are displayed. For example, if the tape information includes information indicating “tape color: red”, color chips showing colors similar to four types of “red” around the reference color of “red” are displayed as well as a color chip of the reference color of “red”, in the color chip group  81 . Here, the “similar color” refers to a color of the same kind as the reference color, having different brightness, density and color mixture (RGB proportion) and the like from the reference color. In the illustrated example, as the color chip group  81 , five types of color chips showing a “color with brightness two levels above the reference color”, “color with brightness one level above the reference color”, “reference color”, “color with brightness one level below the reference color”, and “color with brightness two levels below the reference color” are arranged in order of brightness. Of the five types of color chips, the color chip with a black bold frame  81 s indicates that this option is selected. 
     Similarly, if, for example, the tape information includes information indicating “ink color: white”, color chips showing colors similar to four types of “white” around the reference color of “white” are displayed as well as a color chip of the reference color of “white”, in the color chip group  82  for selecting an ink color. As the color chip group  82 , similarly, five types of color chips showing a “color with brightness two levels above the reference color”, “color with brightness one level above the reference color”, “reference color”, “color with brightness one level below the reference color”, and “color with brightness two levels below the reference color” are arranged in order of brightness. Of the five types of color chips, the color chip with a black bold frame  82 s indicates that this option is selected. 
     If an “OK” button  85  is pressed on the label preview selection screen D 2 , the display color of the tape preview  71  and/or the image preview  72  is changed on the basis of the option selected, and then the label preview selection screen D 2  becomes hidden. If a “cancel” button  86  is pressed, the label preview selection screen D 2  becomes hidden without changing the display color of the tape preview  71  and/or the image preview  72 . Although not particularly illustrated, the numbers of color chips displayed in the color chip groups  81 , (number of a plurality of options) are the same (predetermined number) regardless of the tape color and the ink color specified by the tape information. 
     Next, the flow of print data generation processing by the PC  2  will be described, referring to the flowchart of  FIG. 7 . Here, it is assumed that the dedicated application  26   b  is already started up and that the editing screen D 1  (see  FIG. 5 ) is displayed on the display screen  22  of the PC  2 . 
     If the tape information acquisition button  62  is pressed on the editing screen D 1  by the user, the PC  2  (dedicated application  26   b ) sends a tape information acquisition request to the tape printing device  3  (S 01 ) and determines whether tape information is acquired or not (S 02 ). If tape information is not successfully acquired (for example, if the tape cartridge  31  is not loaded in the tape printing device  3 , or the like) (S 02 : No), the PC  2  displays an error message on the editing screen D 1  (S 03 ) and ends the print data generation processing. 
     Meanwhile, if tape information is acquired (S 02 : Yes), the PC  2  sets the display colors of the tape preview  71  and the image preview  72  displayed on the editing screen D 1  to the reference colors corresponding to the tape color and the ink color included in the tape information (S 04 ) and also displays the label preview selection screen D 2  (S 05 ). If the display color (display color corresponding to the tape color or the ink color) is changed on the label preview selection screen D 2  (S 06 : Yes), the PC  2  changes the display color of the tape preview  71  and/or the image preview  72  according to this change (S 07 ). If no change is made to the display colors (S 06 : No), the PC  2  omits S 07 . 
     Subsequently, the PC  2  edits print data on the basis of an editing operation by the user (S 08 ) and generates print data on the basis of a print instruction operation by the user (S 09 ). Then, the PC  2  outputs the generated print data to the tape printing device  3  (S 10 ) and ends the print data generation processing. 
     As described above, the PC  2  in this embodiment displays a plurality of options to be display color candidates for the tape preview  71  on the label preview selection screen D 2  on the basis of the tape information acquired from the tape printing device  3 , and displays the tape preview  71  in a display color selected from the options. Thus, the tape preview  71  can be displayed in a display color which the user feels close to the actual tape color, regardless of the characteristic of the display screen  22  and the user&#39;s environment of use (lighting, screen setting and the like). Particularly in the case of preparing a label, the preview in the tape color largely influences the preview of the resulting product. Therefore, by having the tape preview  71  displayed in a display color close to the actual tape color, the user can edit the print data while checking the display and can prepare a label as desired. Also, since a profile or the like for changing the display color according to the characteristics of the display screen  22  is not needed, the development of the dedicated application  26   b  is easy. 
     Since display color candidates showing colors similar to the tape color are displayed as the plurality of options, the user can select an option more easily than in the case where not only the similar colors but full-color display color candidates are displayed. Also, since a predetermined number of display color candidates (in the embodiment, five types) are displayed, the number options does not increase or decrease depending on the tape color and the selection can be made easily. 
     On the label preview selection screen D 2 , not only the display color candidates for the tape preview  71  but also the display color candidates for the image preview  72  are displayed. Therefore, the image preview  72  can be similarly displayed in a color which the user feels close to the actual ink color. Since the editing screen D 1  displays the tape preview  71  and the image preview  72  in the reference colors corresponding to the tape color and the ink color when tape information is acquired, the user needs to change the display colors on the label preview selection screen D 2  only when the user finds the reference colors unfitting, and unnecessary selection operations in the case where the reference colors do not look unfitting can be omitted. 
     The above embodiment is not limiting and the following modifications can be employed. 
     Modification 1 
     In the embodiment, the color chip groups  81 ,  82  (see  FIG. 6 ) are displayed on the label preview selection screen D 2 , as display color candidates for the tape preview  71  and the image preview  72 . However, a preview sample group  83  made up of a plurality of preview samples in which an image preview (for example, a prescribed text “TAPE”) is displayed as superimposed on a tape preview may be displayed, as shown in  FIG. 8 . In this modification, a reference color sample ( FIG. 8 , center) corresponding to the reference colors of the tape color and the print color, and a plurality of similar color samples which are based on the reference color sample and in which at least one of the display color of the tape preview and the display color of the image preview is different, are displayed (in the illustrated example, a total of 15 types), as the preview sample group  83 . The preview sample with a black bold frame  83 s indicates that this option is selected. Thus, according to this modification, since the preview sample group  83  is displayed as display color candidates, the user can selects a desired display color while imagining the actual label to be prepared. Also, since the display color of the tape preview  71  and the display color of the image preview  72  can be selected in one shot, the selection operation is easy. 
     The functions of the “OK” button  85  and the “cancel” button  86  are similar to those on the label preview selection screen D 2  shown in  FIG. 6 . The character string displayed in the preview sample may be a text edited in the layout editing area E 2  (in the illustrated example, “ABC”), instead of the prescribed text. 
     Modification 2 
     The result of selection by the user on the label preview selection screen D 2  may be learned and reflected on the selection of a display color candidate. In this case, the PC  2  has a storage unit (not illustrated) which stores the result of selection of a display color candidate by the selection unit  53  (result of selection of an arbitrary option), and the option display unit  52   a  displays display color candidates (color chip groups  81 ,  82 ) for the tape preview  71  and the image preview  72  or the preview sample group  83  in consideration of the result of selection in the past stored in the storage unit. This configuration can assist the user&#39;s selection operation. For example, if, from among display color candidates with five different levels of color tones (for example, candidates with brightness levels “+2”, “+1”, “0”, “−1”, and “−2”), the display color candidate with the lowest level is selected previously, display color candidates around the display color candidate with the lowest level as the reference color (for example, candidates with brightness levels “0”, “−1”, “−2”, “−3”, and “−4”) may be displayed this time, or the like. Also, the average value or center value of the brightness levels may be calculated on the basis of the result of learning in the past and a reference color may be selected on the basis of the result of the calculation. In such cases, the user can quickly find out his or her preferred display color by examining the display color candidates from the reference color. The storage unit may be either a volatile storage medium or a non-volatile storage medium. 
     Other Modifications 
     While the color chip groups  81 ,  82  or the preview sample group  83  is displayed as display color candidates which are a reference color corresponding to the tape color/ink color and colors similar to the reference color in the embodiment, the reference color may not be included. That is, the display color candidates other than the display color of the label preview  70  displayed in the layout editing area E 2  may be displayed as the color chip groups  81 ,  82  or the preview sample group  83 . 
     As display color candidates, colors other than similar colors may be displayed. That is, different colors from the actual tape color/ink color may be used as the display color of the label preview  70  according to the user&#39;s preference. Also, under special lighting, the display color on the display screen  22  may differ from the color recognized by the user. In such circumstances, by deliberately presenting colors other than similar colors as the color chip groups  81 ,  82  or the preview sample group  83 , the display color of the label preview  70  recognized by the user can be made closer to the actual tape color. 
     Instead of the color chip groups  81 ,  82  shown in  FIG. 6 , options indicating color codes or color descriptions (for example, “brightness +2”, “brightness −1” and the like in the case where the reference color is “brightness 0”) may be displayed. 
     In the embodiment, the display color of the label preview  70  is changed at the point when the “OK” button  85  is pressed on the label preview selection screen D 2 . However, the display color of the label preview  70  may be changed at the point when the selected option in the color chip groups  81 ,  82  or the preview sample group  83  is changed (when black bold frames  81 s,  82 s,  83 s are moved). 
     In the embodiment, one option is selected from the plurality of options displayed on the label preview selection screen D 2 . However, it may be possible to select a plurality of options. For example, if the options provided do not include a desired color, the user may select two or three colors close to the desired color and then select a mixture of these colors as the display color. 
     While the print tape T is used as an example of the print medium in the embodiment, the embodiment is also applicable to the case where print media such as copy papers or postcards are used. Also, while the PC  2  is used as an example of the information processing device, the embodiment is also applicable to various tablet terminals such as smartphone or other information processing devices. If the backlight adjusting function for the display screen is installed as in tablet terminals, display color candidates displayed on the label preview selection screen D 2  may be varied according to the setting of the backlight. Alternatively, a recommendation to the user (displaying a recommended option in a different display form from the other options) may be made in consideration of the setting of the backlight. 
     In the embodiment, the tape printing device  3  sends back tape information in response to the tape information acquisition request by the PC  2 . However, the tape printing device  3  may voluntarily send tape information. Also, the user may input the tape color and the ink color to the PC  2 , instead of detecting tape information in the tape printing device  3 . In this case, the user may input roughly categorized colors such as “red” and “white”, and colors similar to each of these colors may be displayed as display color candidates. 
     Each component in the print system SY (PC  2  and tape printing device  3 ) described in the embodiment and modifications may be provided as a program. Also, the program may be provided in the form of being stored in various recording media (CD-ROM, flash memory and the like). That is, a program which causes a computer to function as each component of the print system SY and a recording medium having the program recorded therein are included in the scope of right of the invention. Also, various changes can be made according to need without departing from the scope of the invention, such as implementing each part of the PC  2  in the embodiment via cloud computing.