JP2010066502A - Image forming apparatus and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To control a print processing in accordance with a change when a print setting value making an effect on a printing color is changed from a value when color conversion information is generated in an image forming apparatus. <P>SOLUTION: A control part 120 of an image processing apparatus 100 obtains a print setting value 106 of a print engine 104 when printing a color reference image, generates profile data 112 based on colorimetry results of printed results of the color reference image, and registers an obtained print setting value 114 into a storage device 110 with making it correspond with the generated profile data 112. When a printing of a print target image 10 is instructed, the control part 120 controls the print processing based on the print setting value 106 of the print engine 104 at this point and the print setting value 114 registered with being made to correspond with the specified profile data 112. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an image forming apparatus and a program.

  An image forming apparatus such as a printer, a copier, or a multifunction peripheral (an apparatus having a plurality of functions such as a printer, a scanner, and a copier) uses various types of paper. In order to reproduce the same color even if the paper type changes, the image forming apparatus registers color conversion data for each paper type. The color conversion data includes, for example, profile data and calibration data. The profile data is data representing the correspondence between the coordinates of the grid points in the color space of the input color and the coordinates of the grid points in the color space of the output color. For example, an ICC (International Color Consotium) profile is an example. Also, due to changes over time, there may be a deviation between the color reproduction characteristics of the image forming apparatus and the profile data created in the past. Calibration data is data for compensating such a deviation. is there.

  Patent Document 1 discloses an image forming apparatus that performs color conversion that matches the characteristics of a user sheet on which a user wants to output an image. In this apparatus, the selection unit selects a standard sheet having characteristics similar to those of a user sheet, which is a sheet that the user intends to use when outputting an image, from a plurality of preset standard sheets. The conversion table creation unit converts CMYK image data for standard paper into CMYK for user paper based on the printer profile corresponding to the standard paper selected by the selection unit and the printer profile generated for user paper. Create a conversion table to convert to image data. The color conversion table synthesis unit synthesizes a color conversion table corresponding to the standard paper selected by the selection unit and a color conversion table for converting RGB image data into CMYK image data for user paper based on the conversion table. To do.

  Factors that affect the color reproduction characteristics of the image forming apparatus include setting values for process conditions in addition to color conversion data. It is also conceivable that the user changes the setting values of these process conditions in order to adjust the color reproduction.

JP 2008-153810 A

  The present invention makes it possible to control print processing in response to a change in a print setting value that affects a print color in an image forming apparatus from a value when color conversion information is generated. For the purpose.

  The invention according to claim 1 causes the printing apparatus to print a color reference image, and obtains print setting values that affect the print color of the printing apparatus when printing the color reference image; and the printing Generating means for generating color conversion information for converting color information of the input image into color information to be supplied to the printing apparatus based on a colorimetric result of the color reference image printed by the apparatus; Storage means for storing the print setting value acquired by the means in association with the color conversion information generated by the generation means, and when the printing of the input image is instructed, the current print setting value of the printing apparatus And control means for controlling printing processing of the input image using the color conversion information based on the print setting values stored in the storage means in association with the color conversion information. Molding It is.

  The invention according to a second aspect is the invention according to the first aspect, wherein the control means stores the print setting value of the printing apparatus at the present time in association with the color conversion information and stored in the storage means. If the print setting value is different, the print processing of the input image using the color conversion information is stopped and an alarm is issued.

  The invention according to claim 3 is the invention according to claim 1, wherein the control means stores the print setting value of the printing apparatus at the present time in association with the color conversion information and stored in the storage means. When the print setting value is different, the print setting value of the printing apparatus is replaced with the print setting value stored in the storage unit in association with the color conversion information, and the input image The result of color conversion based on the color conversion information is printed on the printing apparatus according to the replaced print setting value.

  The invention according to claim 4 is the invention according to claim 1, wherein the print setting value of the printing apparatus at the present time, the print setting value stored in the storage means in association with the color conversion information, Priority information storage means for storing priority information indicating which one of them is prioritized, wherein the control means associates the print setting value of the printing apparatus at the current time with the color conversion information and stores the storage information. If the print setting value stored in the means is different, the color conversion based on the color conversion information of the input image is sent to the printing apparatus according to the priority print setting value indicated by the priority information. The result is printed.

  According to a fifth aspect of the present invention, in the first aspect of the invention, for each item included in the print setting value, the current print setting value of the printing apparatus and the color conversion information are stored in the storage unit in association with each other. Priority information storage means for storing priority information indicating which of the print setting values is given priority, and the control means includes the current print setting values of the printing apparatus, When the print setting value stored in the storage means in association with color conversion information is different, according to the value of the priority print setting value indicated by the priority information for each item, The printing apparatus is configured to print a result of color conversion based on the color conversion information of the input image.

  The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein when the printing apparatus prints the result of color conversion based on the color conversion information of the input image, the printing is performed. When receiving an instruction from the user to adopt the print setting value set in the printing apparatus at the time, the print setting value stored in the storage unit in association with the color conversion information is replaced. And a means for storing the print setting value set in the printing apparatus at the time of the printing in the storage means.

  The invention according to claim 7 is an acquisition means for causing a computer to print a color reference image on a printing apparatus and to acquire a print setting value that affects the print color of the printing apparatus when printing the color reference image; Generating means for generating color conversion information for converting color information of an input image into color information to be supplied to the printing apparatus, based on a color measurement result of the color reference image printed by the printing apparatus; Storage means for storing the print setting value acquired by the acquisition means in association with the color conversion information generated by the generation means, and when printing of an input image is instructed, the current print setting value of the printing apparatus And a control unit that controls a print process of the input image using the color conversion information based on the print setting value stored in the storage unit in association with the color conversion information. A program for causing.

  According to the first or seventh aspect of the invention, when the print setting value that affects the print color in the image forming apparatus is changed from the value when the color conversion information is generated, it corresponds to the change. Control the printing process.

  According to the invention which concerns on Claim 2, it can prevent printing according to the print setting value which does not respond | correspond to color conversion information.

  According to the invention of claim 3, even when the print setting value of the printing apparatus is changed from the value at the time of generating the color conversion information, when the color conversion information is used, the print setting value at the time of generation is used. Can be printed.

  According to the invention of claim 4, the print setting corresponding to the priority information set by the user among the print setting value of the printing apparatus at the present time and the print setting value stored in association with the color conversion information You can print by value.

  According to the invention of claim 5, for each item of the print setting value, which of the print setting value of the printing apparatus at the present time and the print setting value stored in association with the color conversion information is used? Can be adapted to the user's intention.

  According to the invention of claim 6, when a print setting value better than the print setting value of the printing apparatus at the time of generating the color conversion information is found, the print setting value stored in association with the color conversion information is stored. Can be changed.

  An example of the image forming apparatus of the embodiment is shown in FIG. The image forming apparatus 100 includes a color conversion unit 102, a print engine 104, a storage device 110, a control unit 120, and a user interface unit 130.

  The image forming apparatus 100 performs a process for printing out the print target image 10. The print target image 10 may be any type of image data such as bitmap image data or image data described in PDL (page description language). The print target image 10 is input to the image forming apparatus 100 via a communication path such as a network, or via a portable recording medium such as a CD-R. When the image forming apparatus 100 includes a scanner, image data read by the scanner may be used as the print target image 10. The print target image 10 is converted into a raster image that can be handled by the print engine 104 by an interpreter or other image processing unit (not shown).

  The color conversion unit 102 performs color conversion according to the profile data 112 on the raster image generated from the print target image 10. The profile data 112 is data including information representing the correspondence between the color coordinates of each grid point in the input side color space and the color coordinates in the output side color space corresponding to the grid point. The profile data 112 may be, for example, an ICC profile or a proprietary standard profile defined by the manufacturer of the image forming apparatus 100.

  Here, the output side color space is a color space of the print engine 104. The output side color space is typically expressed by a combination of four colors of C, M, Y, and K. However, the output side color space is not limited to CMYK, and may be any color space corresponding to the color signal supplied to the print engine 104. On the other hand, the input side color space is a color space of the print target image 10 itself.

  For example, the profile data 112 is generated by the profile data generation unit 122 and stored in the storage device 110. For each paper type, profile data 112 is generated and stored in the storage device 110, and the user selects and uses one of the plurality of profile data 112 that matches the paper to be used. Good.

  For each pixel of the raster image generated from the print target image 10, the color conversion unit 102 profiles the color coordinates of the output side color space when the value (color coordinate) of the pixel is the color coordinate of the input side color space. Calculate according to Here, when the pixel value of the print target image 10 matches the grid point represented in the profile, the color coordinates on the output side of the grid point indicated in the profile may be used. Otherwise, the output side color coordinates corresponding to the pixel value are calculated by interpolating the information of the grid points around the pixel value. Since such color correction calculation is well known, further explanation is omitted.

  The print engine 104 prints an image of the color conversion result output from the color conversion unit 102 on a sheet. Hereinafter, a case where the print engine 104 is an electrophotographic type will be described as an example. However, the method of the present embodiment is not limited to the electrophotographic method, and can be applied to an apparatus including another print engine such as an ink jet method.

  The print engine 104 is set with a print setting value 106 that defines printing process conditions. The print setting value 106 includes items that affect color reproduction in the print engine 104. Such items include, for example, density conditions for changing the density of each process color, such as CMYK (cyan, magenta, yellow, black), and transfer conditions that define the transfer power from the photoreceptor to the printing medium (paper). There is. The density condition includes a surface potential (charging power) that defines the charging strength of the photosensitive member, an exposure power that defines the intensity of exposure to the photosensitive member, and a developing bias potential that defines the strength of developing the exposed portion of the photosensitive member. and so on. The print engine 104 controls each unit in the engine 104 according to the print setting value 106 and prints input print data on paper.

  The control unit 120 controls the entire image forming apparatus 100. For example, the control unit 120 receives a print instruction from the user, and controls the color conversion unit 102, the print engine 104, and the like to perform printing processing of a target image of the print instruction.

  When there are a plurality of profile data 112 stored in the storage device 110, the control unit 120 receives designation of the profile data 112 to be used from the user, and sets the designated profile data 112 in the color conversion unit 102. For example, the user designates profile data corresponding to the paper used for printing to the control unit 120. The color conversion unit 102 performs color conversion on the print target image 10 using the set profile data 112.

  The control unit 120 includes a profile data generation unit 122. The profile data generation unit 122 performs processing for generating the profile data 112. The profile data 112 is generated based on the color measurement result obtained by causing the print engine 104 to print the chart pattern 116 serving as a color reference, measuring the print result with the colorimeter 140. The chart pattern 116 is, for example, an image pattern in which color patches having different densities in a plurality of stages are arranged for each color of CMYK. Data of the chart pattern 116 is stored in the storage device 110, and the control unit 120 reads out the data and causes the print engine to print it. Since the process of generating the profile data 112 using the chart pattern 116 is well known, further explanation is omitted.

  The profile data 112 is generated for each paper type, for example. That is, for each paper type, the chart pattern 116 is printed on that type of paper, and the printing result is measured to generate profile data 112 corresponding to that paper type. The profile data 112 generated for each paper type is stored in the storage device 110 in association with the name of the paper type, for example.

  In addition, since the color reproduction characteristics of the print engine 104 change with time, the profile data 112 may be regenerated to cope with the change. Further, calibration data for compensating for the deviation between the existing profile data 112 and the current color reproduction characteristics of the print engine 104 may be generated and stored in the storage device 110 in association with the profile data 112. The calibration data may be the same as the chart pattern used to generate the profile data 112 (or a simplified version of the chart data 112) may be printed by the print engine 104, the measurement result may be measured, and the color measurement may be performed. What is necessary is just to obtain | require with a well-known method from a result.

  In this embodiment, when the profile data generating unit 122 generates the profile data generating unit 122, the print setting value 106 set in the print engine 104 at that time (in particular, the value of an item that affects the color reproduction characteristics). ) And the print setting value is stored in the storage device 110 in association with the profile data 112 (print setting value 114).

  The user interface unit 130 is a means for notifying the user of the state of the image forming apparatus 100 and receiving an instruction input from the user. The user interface unit 130 may include a display device such as a liquid crystal touch panel and an input button such as a keypad.

  Next, an example of a processing procedure of the profile data generation unit 122 will be described with reference to FIG. In this example, the user instructs the image forming apparatus 100 to generate profile data. This instruction may include, for example, an identification name representing the profile data (for example, a name representing the type of paper to be used). Upon receiving this instruction, the profile data generation unit 122 first instructs the print engine 104 to print the chart pattern 116 (S10). In response to this, the print engine 104 prints the supplied chart pattern 116 on a sheet (S12). At the time of this printing, the print engine 104 performs printing with an operation setting according to the print setting value 106. When the chart pattern 116 is printed, the print setting value 106 of the print engine 104 at that time may be printed together with the chart pattern 116. In this case, the user can confirm the print setting value when printing the chart pattern 116 from the print result.

  The user measures the print result of the chart pattern 116 with the colorimeter 140 (S14). When the color measurement result of the colorimeter 140 is input, the profile data generation unit 122 generates profile data based on the color measurement result (S16). Further, the profile data generation unit 122 acquires the print setting value 106 of the print engine 104 at the time of step S12, links (associates) the print setting value with the generated profile data, and stores it in the storage device 110. Store (S18).

  The example in the case where profile data is generated has been described above, but the same processing is performed when calibration data is generated. That is, when the chart is printed on the print engine 104 and calibration data corresponding to the profile data 112 is generated based on the printing result, the generated calibration data is registered in the storage device 110 in association with the profile data 112. At the same time, the print setting value 106 of the print engine 104 at the time of calibration data generation is overwritten on the print setting value 112 linked to the profile data 112. When the calibration data is linked to the profile data 112, the color conversion unit 102 converts the color of the print target image 10 using the specified profile data 112 and the calibration data linked to the specified profile data 112. To do.

  After the profile data 112 is generated and registered in the storage device 110 in this way, the print setting value 106 of the print engine 104 may be changed for some reason. For example, when the paper type is changed, the print setting value 106 is changed to an appropriate value for the changed paper. As described above, when the print setting value 106 of the print engine 104 is changed from the value at the time when the profile data 112 is generated, if color conversion and printing using the profile data 112 are performed, the assumed color reproduction cannot be achieved. there is a possibility. Hereinafter, an example of processing for coping with such a change in the print setting value 106 will be described.

  With reference to FIG. 3, an example of a processing procedure of the image forming apparatus 100 when a print instruction is received from the host computer will be described. In this procedure, the control unit 120 receives a print instruction from the host computer via, for example, a network (S20). The print instruction includes designation of profile data to be used (for example, profile data named “profile A”). Upon receiving the print instruction, the control unit 120 reads the print setting value 114 stored in the storage device 110 in a link with the specified profile data, and the print setting value 106 currently set in the print engine 104. Are compared (S22). Although the print setting value includes various items, in step S22, comparison is performed on items (exposure power, transfer power, etc.) that affect the color reproduction characteristics among them. Which of the print setting values is an item that affects the color reproduction characteristics may be registered in the image forming apparatus 100 in advance.

  As a result of comparison, the print setting value 114 linked to the designated profile data 112 is equal to the print setting value 106 currently set in the print engine 104 (that is, each item that affects the color reproduction characteristics). If it is found that the values are all equal between the two, the control unit 120 causes the print engine 104 to execute printing with the current print setting value 106 (S24).

  On the other hand, when it is determined that the print setting value 114 linked to the designated profile data 112 and the print setting value 106 currently set in the print engine 104 are not equal, the control unit 120 does not perform printing. The alarm information is output to the user interface unit 130 (S26). For example, the alarm information may be output in a form in which an alarm message is displayed on the display screen of the user interface unit 130. In response to this alarm, the operator (user) takes measures such as changing the print setting value 106 of the print engine 104 (S28).

  Next, another example of the processing procedure of the image forming apparatus 100 when receiving a print instruction from the host computer will be described with reference to FIG.

  In this procedure, when a print instruction including specification of profile data 112 to be used is received from the host computer (S30), the control unit 120 prints the print setting value 114 linked to the profile data 122 and the current print engine 104. The print setting value 106 is compared (S32). If they are equal, the print engine 104 is caused to print according to the current print setting value 106 as in the example of FIG. 3 (S34). On the other hand, if they are not equal, the print setting value 112 linked to the designated profile data 112 is set in the print engine 104 (S36). As a result, the print setting value 106 of the print engine 104 is replaced with the print setting value 112 linked to the profile data 112. After this replacement, the control unit 120 causes the print engine 104 to execute printing (S34). Thus, the print engine 104 performs printing according to the print setting value 114 at the time when the designated profile data 112 is generated.

  Next, still another example of the processing procedure of the image forming apparatus 100 when a print instruction is received from the host computer will be described with reference to FIG.

  In this procedure, when a print instruction including specification of profile data 112 to be used is received from the host computer (S40), the control unit 120 prints the print setting value 114 linked to the profile data 112 and the current print engine 104. The print setting value 106 is compared (S42). If they are equal, the print engine 104 is caused to perform printing according to the current print setting value 106 as in the example of FIG. 3 (S44).

  On the other hand, if they are not equal, the priority information (not shown) preset in the image forming apparatus 100 is referred to (S46). The priority information is setting information indicating which of the print setting value 114 linked to the specified profile data 112 and the print setting value 106 currently set in the print engine 104 is prioritized, for example, the storage device 110. It is registered in. In step S46, the control unit 120 determines whether the priority information is set to prioritize the current print setting value 106 of the print engine 104 (over the print setting value 114 linked to the profile data 112). To do. If the determination result of step S46 is affirmative (Yes), the process proceeds to step S44, and the control unit 120 causes the print engine 104 to perform printing with the current print setting value 106. If the determination result in step S46 is negative, the control unit 120 replaces the print setting value 106 of the print engine 104 with the print setting value 112 linked to the profile data 112, and after this replacement, prints to the print engine 104. Is executed (S48).

  Next, another example of the processing procedure of the image forming apparatus 100 when receiving a print instruction from the host computer will be described with reference to FIG.

  In the example of FIG. 5, priority information indicating which of the print setting value 114 linked to the specified profile data 112 and the print setting value 106 currently set in the print engine 104 has priority is used. The example of FIG. 6 further details this. That is, in this example, for each print setting value item, which of the print setting value 114 linked to the specified profile data 112 and the print setting value 106 currently set in the print engine 104 is prioritized is determined. The priority information shown is used. Such priority information is set in advance in the image forming apparatus 100 by the user.

  In the procedure of FIG. 6, when a print instruction including specification of profile data 112 to be used is received from the host computer (S50), the control unit 120 sets the print setting value 114 linked to the profile data 112 and the print engine 104. The current print setting value 106 is compared (S52). If they are equal to each other for all items, the print engine 104 is caused to print according to the current print setting value 106 as in the example of FIG. 3 (S54).

  On the other hand, if they are not equal, the priority information preset in the image forming apparatus 100 is referred to, and for each print setting value item, the print setting value 114 linked to the designated profile data 112 and the print Of the print setting values 106 currently set in the engine 104, the one set to be prioritized is adopted (S56). That is, for the item indicated in the priority information that the print setting value 114 linked to the profile data 112 should be prioritized, the print setting value 106 of the print engine 104 is changed to the value to be prioritized. After the setting change, the print engine 104 is caused to execute printing (S54).

  In some cases, after the profile data 112 is generated, trial printing is performed using the profile data 112. There is no problem as long as the color reproduction of the test print is assumed, but if it is different from the assumed color, the user may adjust the print setting value 106 of the print engine 104. When the assumed color reproduction is realized by such adjustment, it can be considered that the adjusted print setting value 106 is the print setting value 106 suitable for the profile data 112. Further, the print setting value 106 may be adjusted not only immediately after the generation of the profile data 112 but also after a certain period of time to realize the expected color reproduction.

  Therefore, as one modification, the image forming apparatus 100 may be provided with means for replacing the print setting value 114 when the profile data 112 linked to the profile data 112 is generated with the adjusted print setting value 106.

  That is, in this modification, an instruction to change the print setting value 114 that is linked to the profile data 112 and stored in the storage device 110 is received from the user. For example, an item for instructing the change of the print setting value linked to the profile data may be provided in the menu displayed by the user interface unit 130.

  As shown in FIG. 7, the control unit 120 monitors the input of this change instruction (S60). When the change instruction is input, the print setting value 114 linked to the currently selected profile data 112 is displayed. Is replaced with the current print setting value 106 (S62).

  Note that the user interface that accepts an instruction to change the print setting value 114 linked to the profile data 112 may be displayed for the first time when the print setting value 106 of the print engine 104 is changed and trial printing is performed. .

  The control unit 120 of the image forming apparatus 100 exemplified above is realized, for example, by causing a general-purpose computer to execute a program representing the processing of each functional module described above. Here, for example, as shown in FIG. 8, the computer includes, as hardware, a microprocessor such as a CPU 200, a memory (primary storage) such as a random access memory (RAM) 202 and a read only memory (ROM) 204, an HDD ( HDD controller 208 that controls (hard disk drive) 206, various I / O (input / output) interfaces 210, network interface 212 that performs control for connection to a network such as a local area network, etc. Circuit configuration. In addition, the bus 214 has various standards such as a disk drive 216 for reading from and / or writing to a portable disk recording medium such as a CD and a DVD and a flash memory via the I / O interface 210, for example. A memory reader / writer 218 for reading from and / or writing to the nonvolatile recording medium may be connected. A program in which the processing contents of each functional module exemplified above are described is stored in a fixed storage device such as a hard disk drive via a recording medium such as a CD or DVD, or via a communication means such as a network, and stored in a computer. Installed. The program stored in the fixed storage device is read into the RAM 202 and executed by a microprocessor such as the CPU 200, whereby the functional module group exemplified above is realized. Some or all of these functional module groups are used as hardware circuits such as dedicated LSI (Large Scale Integration), ASIC (Application Specific Integrated Circuit), or FPGA (Field Programmable Gate Array). It may be configured.

1 is a diagram illustrating a configuration example of an image forming apparatus according to an embodiment. It is a flowchart which shows an example of a profile data generation process procedure. 6 is a flowchart illustrating an example of a processing procedure of the image forming apparatus when a print instruction is received. 10 is a flowchart illustrating another example of the processing procedure of the image forming apparatus when receiving a print instruction. 10 is a flowchart illustrating another example of the processing procedure of the image forming apparatus when receiving a print instruction. 10 is a flowchart illustrating another example of the processing procedure of the image forming apparatus when receiving a print instruction. 10 is a flowchart illustrating an example of a processing procedure when there is an instruction to change a print setting value linked to profile data. It is a figure which shows an example of the hardware constitutions of a computer.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Print target image, 100 Image forming apparatus, 102 Color conversion part, 104 Print engine, 106 Print setting value, 110 Storage device, 112 Profile data, 114 Print setting value, 116 Chart pattern, 120 Control part, 122 Profile data generation part , 130 User interface unit, 140 Colorimeter.

Claims (7)

Obtaining means for printing a color reference image on a printing apparatus and obtaining a print setting value that affects a print color of the printing apparatus when the color reference image is printed;
Generating means for generating color conversion information for converting color information of the input image into color information to be supplied to the printing device, based on the color measurement result of the color reference image printed by the printing device;
Storage means for storing the print setting value acquired by the acquisition means in association with the color conversion information generated by the generation means;
When printing of an input image is instructed, based on the current print setting value of the printing apparatus and the print setting value stored in the storage unit in association with the color conversion information, the color Control means for controlling printing processing of the input image using conversion information;
An image forming apparatus comprising:   When the print setting value of the printing apparatus at the present time is different from the print setting value stored in the storage unit in association with the color conversion information, the control unit performs the color conversion. The image forming apparatus according to claim 1, wherein the input image printing process using information is stopped and an alarm is issued.   If the print setting value of the printing apparatus at the present time is different from the print setting value stored in the storage means in association with the color conversion information, the control means Is replaced with the print setting value stored in the storage unit in association with the color conversion information, and the result of color conversion based on the color conversion information of the input image is replaced with the replaced print value. The image forming apparatus according to claim 1, wherein the printing apparatus is configured to print according to a set value. Priority storing priority information indicating which of the print setting value of the printing apparatus at the present time and the print setting value stored in the storage means in association with the color conversion information is prioritized. An information storage means;
If the print setting value of the printing apparatus at the present time is different from the print setting value stored in the storage means in association with the color conversion information, the control means The image forming apparatus according to claim 1, wherein the printing apparatus prints a result of color conversion based on the color conversion information of the input image in accordance with a priority print setting value indicated by. For each item included in the print setting value, priority is given to either the current print setting value of the printing apparatus or the print setting value stored in the storage unit in association with the color conversion information. Further comprising priority information storage means for storing priority information indicating
If the print setting value of the printing apparatus at the present time is different from the print setting value stored in the storage means in association with the color conversion information, the control means 2. The color conversion result based on the color conversion information of the input image is printed by the printing apparatus according to a value of a priority print setting value indicated by the priority information. Image forming apparatus. When the printing apparatus is caused to print the result of color conversion based on the color conversion information of the input image, the user is instructed to adopt the print setting value set in the printing apparatus at the time of printing. If the print setting value stored in the storage means in association with the color conversion information is stored, the print setting value set in the printing apparatus at the time of printing is stored in the storage means. Means to
The image forming apparatus according to claim 1, further comprising: Computer
Obtaining means for printing a color reference image on a printing apparatus and obtaining a print setting value that affects a print color of the printing apparatus when the color reference image is printed;
Generating means for generating color conversion information for converting color information of an input image into color information to be supplied to the printing device, based on a color measurement result of the color reference image printed by the printing device;
Storage means for storing the print setting value acquired by the acquisition means in association with the color conversion information generated by the generation means;
When printing of an input image is instructed, based on the current print setting value of the printing apparatus and the print setting value stored in the storage unit in association with the color conversion information, the color Control means for controlling printing processing of the input image using conversion information;
Program to function as.

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