JP2003289450A - Print controller, print control method, medium having print control program recorded thereon and print control program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem of a conventional print controller that has needed much time for a job of adjusting colors when processing requiring a high load is applied to every trial and error. <P>SOLUTION: Color adjustment is applied to the colors of raster data resulting from applying interpreter processing and rendering processing to print data described in a prescribed page description language. Further, by storing a plurality of adjustment amount candidate data, adjustments for a plurality of numbers of times is made possible and trial printing is possible for a plurality of numbers of times wherein the amount of color adjustment differs. Thus, it is not required to repeat the interpreter processing and the rendering processing in the trial stage, and colors are easily compared by trial and error and the data are easily adjusted to acquire the most preferable color. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a print control device, a print control method, a medium recording a print control program, and a print control program.

[0002]

2. Description of the Related Art When printing is performed based on print data described in a page description language such as Postscript (Postscript is a registered trademark of Adobe Systems), a print control device has conventionally been used to interpret the page description language. Etc., and print execution data to be delivered to the printing apparatus is created. That is, the page description language in the print data is interpreted by an interpreter to generate an intermediate code, and the intermediate code is rendered to generate raster data composed of bitmap data of each raster.
Further, halftone processing is performed on the raster data to obtain print execution data.

[0003]

The above-mentioned conventional techniques have the following problems. That is, if the color tone is not satisfactory as a result of printing a certain image, the color is adjusted and printing is performed again, and trial and error are repeated until the color tone is satisfied. In the above conventional technique, since the color is determined at the rendering stage, rendering is performed every time the color is adjusted, and a series of processes such as interpreter processing and rendering processing and halftone processing is performed at each trial and error. Was being repeated. Interpreter processing and rendering processing are generally heavy processing,
If high-load processing is performed at each trial and error, it takes a very long time to perform the trial and error work.

Even if a plurality of prints are obtained by trial and error, if it takes time from printing one to printing the other, the dryness of the ink on the print medium, the surrounding temperature, etc. Since the printing conditions are different, it is difficult to compare the two and adjust the colors. The present invention has been made in view of the above problems, and it is possible to obtain a printing result at high speed for an image for which color adjustment has been performed,
An object of the present invention is to provide a print control device, a print control method, a medium on which a print control program is recorded, and a print control program that enable easy color comparison by trial and error.

[0005]

In order to achieve the above object, the invention according to claim 1 provides a print data acquisition unit for acquiring print data described in a predetermined page description language, and a page description of the print data. Raster data generating means for interpreting language and generating raster data composed of gradation value data of pixels forming each raster, raster data storing means for storing the generated raster data, and the value of the gradation value data. The adjustment amount candidate data acquisition unit that receives the color adjustment input for adjusting each color component and acquires the adjustment amount candidate data indicating the adjustment amount of each color component, and the adjustment amount candidate data acquisition unit that acquires the raster data. From the gradation value data correction means for correcting each gradation value data of the raster data according to the received adjustment amount candidate data, and the corrected gradation value data, Print execution data generating means for generating print execution data capable of executing printing by the printing device while performing the halftone processing by acquiring the raster data to be printed, and printing for outputting the print execution data to the printing device. The adjustment amount candidate data acquisition unit outputs the print execution data by the print execution data output unit and executes printing, and thereafter, the adjustment amount candidate data indicating an adjustment amount different from that at the time of printing. Is obtained for trial, the gradation value data correction unit corrects the raster data according to the adjustment amount candidate data obtained for the trial by re-obtaining the raster data stored in the raster data storage unit, This raster data is transferred to the print execution data generation means, and the generated print execution data is output to the print execution data output means. As a result, the trial printing can be executed while reusing the single raster data stored in the raster data storage means, and the designation input reception for receiving the designation input for designating any of the adjustment amount candidate data is possible. And an adjustment amount data storage unit for storing the adjustment amount candidate data designated by the designation input receiving unit as the adjustment amount data of each gradation value data.

In the invention according to claim 1 configured as described above, the print data described in the page description language is acquired, converted into print execution data that can be printed by the printing device, and output. . The printing apparatus can print according to the print execution data. As a configuration for outputting the print execution data, it is provided with print data acquisition means, raster data generation means, raster data storage means, print execution data generation means, and print execution data output means.

The print data acquisition means acquires the print data described in a predetermined page description language, and the raster data generation means interprets the page description language to form a raster consisting of gradation value data of pixels forming each raster. Generate data. The generated raster data is stored in the raster data storage means. The print execution data generation unit acquires the raster data, performs halftone processing, and generates print execution data that allows the printing apparatus to execute printing.

In the print control apparatus for converting the print data described in the page description language into the print execution data in a format in which printing can be executed by the printing apparatus in this manner, the present invention is configured to enable color adjustment. The configuration is such that the raster data generation processing with a heavy processing load is not executed every time the color is further adjusted and printing is executed. Therefore, the adjustment amount candidate data acquisition means, the gradation value data correction means, and the designated input reception are performed. Means and adjustment amount data storage means. The adjustment amount candidate data acquisition unit receives the color adjustment input for adjusting the gradation value data value of each pixel of the raster data for each color component, and acquires the adjustment amount candidate data.

The gradation value data correction means acquires the raster data and corrects each gradation value data of the raster data according to each adjustment amount candidate data. Here, the gradation value data correction means can obtain a plurality of raster data corrected by different adjustment amounts by reusing the single raster data stored in the raster data storage means. Therefore, after performing printing, the print result is visually checked to examine the adjustment amount, and a set of raster data that has been adjusted for each color component by the adjustment amount candidate data with the adjustment amount input for trial printing is obtained, By generating print execution data based on the raster data and outputting the print execution data to the printing apparatus, it is possible to obtain the print result in the state where the color is adjusted. With this configuration, it is possible to adjust the color and perform trial and error.

Further, the designated input receiving means receives an input for designating any one of the adjustment amount candidate data, and the adjustment amount data storing means adjusts the adjustment amount candidate data designated by the designated input receiving means for each gradation value data. Store as quantity data. Therefore, when the adjustment amount candidate data having the preferable adjustment amount is designated after the preferable adjustment amount is found by trial and error, it is stored as the adjustment amount data. If this adjustment amount data is stored, then it is possible to print an image in a desired color by executing printing with the raster data corrected with the adjustment amount data.

Here, the print data acquired by the print data acquisition means is data for printing a document, an image, etc., and may be described in a predetermined page description language, and the page description language is not limited. As an example of a configuration in which the page description language is interpreted as raster data consisting of gradation data of each pixel and the print execution data is obtained after performing halftone processing, print data described in Postscript is acquired and printed. ESC / P that can be interpreted by the device (ESC / P
Is a registered trademark of Seiko Epson Corporation).

The raster data may be any data as long as each raster is composed of pixels and has gradation value data of each pixel. As a suitable application example in the printing apparatus, the color of each pixel is the ink used in the printing apparatus. Is expressed as a component,
Bit map data or the like in which the gradation value is used as data of each pixel can be used. Specific examples of color components include CMY (cyan, magenta, yellow (black and light cyan,
Light magenta, dark yellow) may be included))
Although the gradation value data of 1) can be mentioned, it goes without saying that colors of other systems may be used.

Since the raster data includes bitmap data, the processing in the raster data generating means includes rendering after interpretation of the page description language. As described above, when the raster data has CMY color components and the print data represents an image with other color components such as RGB color components, color conversion from the other color components to CMY color components is performed. Also includes processing. In the raster data storage means, the raster data, which is the data after interpretation of the page description language, can be used in trial and error so that it can be stored so that it can be reused.

More specifically, it can be realized by writing the raster data to various storage media and not deleting the raster data after generating and outputting the print execution data. Generally, in view of the large amount of raster data and the sharp decrease in capacity and price in recent years, it is preferable to use a hard disk drive as a storage medium. Of course, you may write in RAM, flash memory, etc. When the power supply to the print control device is temporarily stopped, the power supply is restarted, and the trial printing is repeated, a nonvolatile storage medium is preferable.

The print execution data generating means is only required to be able to generate print execution data for causing the printing device to execute printing while performing halftone processing. For example, by adding a command for executing printing with the data after halftone processing. Good. For example, in order to execute printing with a printing apparatus equipped with a module capable of interpreting ESC / P, ESC /
P may be added to the print execution data.

In the present invention, the gradation value of each pixel is given at the time when the raster data is generated. However, by performing correction with the adjustment amount candidate data before executing the halftone process, the gradation of the color component is changed. The tonal values are corrected, and as a result, color adjustment is performed by trial and error. Therefore, the adjustment amount candidate data acquisition means only needs to be able to acquire the adjustment amount for each color component. In the raster data, the color of the pixel is expressed by the combination of colors of multiple color components, so
By adjusting each color component, it is possible to adjust the color of the pixel by the combination. The configuration for acquiring the adjustment amount may be a configuration for acquiring the offset amount for the gradation value or a configuration for acquiring the tone curve for the gradation value, and can be realized in various other modes. In the configuration in which the adjustment amount is received by adjusting the tone curve, the user can easily input the adjustment amount while visually recognizing the relationship between the gradation values before and after the correction.

Further, although a plurality of adjustment amount candidate data are acquired in the sense that the adjustment amount candidate data is acquired again after the printing is executed, each of the adjustment amount candidate data is corrected by the gradation value data correction means. It is only necessary to be able to obtain a plurality of raster data adjusted for each color component by the adjustment amount candidate data, and in order to obtain the raster data, it is preferable that the adjustment amount for all color components of each pixel is acquired. Of course, at this time, it is possible to set the adjustment amount of a certain color component to "0". For example, when expressing a pixel color in CMY (cyan, magenta, yellow), the adjustment amount may be acquired for each CMY color, but for certain raster data, the adjustment amount of MY is set to "0" and only cyan is used. It is also possible to input the adjustment amount so as to adjust.

Further, as an example of the structure for obtaining a plurality of raster data by correcting the tone value data of the raster data in the tone value data correction means, for example, a tone curve is used according to the input mode of the adjustment amount. It is realized by a configuration that makes a correction. Here, although it is possible to adjust all color components that make up a pixel, if the adjustment amount for a certain color component is “0”, the color component is not corrected.

Further, in executing trial printing, it is convenient if printing results can be obtained with a plurality of adjustment amounts in one printing. As a configuration therefor, in the invention according to claim 2, a print data acquisition unit that acquires print data described in a predetermined page description language and a pixel that configures each raster by interpreting the page description language of the print data Raster data generation means for generating raster data composed of gradation value data, raster data storage means for storing the generated raster data, and color adjustment input for adjusting the value of the gradation value data for each color component Adjustment amount candidate data obtaining means for obtaining a plurality of adjustment amount candidate data having different adjustment amounts, and a plurality of raster data stored in the raster data storage means are obtained a plurality of times and accepted by the adjustment amount candidate data obtaining means. The gradation value data supplement that generates a plurality of raster data by correcting each gradation value data of each raster data according to the adjustment amount candidate data of And means for generating a plurality of raster data obtained by correcting the respective gradation value data and performing print processing by the printing apparatus while performing halftone processing on the respective raster data. Execution data generation means, print execution data output means for outputting the print execution data to a printing apparatus, designated input acceptance means for accepting designated input for designating any of the adjustment amount candidate data, and designated input acceptance The adjustment amount data storage unit stores the adjustment amount candidate data designated by the unit as the adjustment amount data of each gradation value data. That is, by receiving a plurality of adjustment amount candidate data by the adjustment amount candidate data, acquiring a single raster data a plurality of times and performing a plurality of corrections, it is possible to obtain a print result with a plurality of adjustment amounts in one printing. Can be obtained.

In the present invention, the print execution data is generated from the raster data, and the color adjustment can be performed by trial and error by outputting the print execution data to the printing device. However, in the designated input acceptance means and the adjustment amount data storage means. As a result of this trial and error, it is only necessary to be able to perform printing with the adjustment amount when the preferable adjustment amount is found. As a configuration example for that purpose, in the invention according to claim 3, the raster data generation means corrects each gradation value data by the adjustment amount data when the adjustment amount data is stored in the adjustment amount data storage means. It is configured to generate the raster data. That is, it is possible to perform printing by using the adjustment amount candidate data designated and input as the adjustment amount of the raster data, and it is possible to perform printing with the preferable adjustment amount obtained by trial and error.

Further, in the invention according to claim 4 as an example of a structure suitable for performing trial and error, the print execution data generating means simply outputs an image based on each raster data corrected according to the plurality of adjustment amount candidate data. It is configured to generate print execution data to be printed on one medium. That is, since a plurality of images whose colors have been adjusted by a plurality of adjustment amounts are printed on a single medium, the user can very easily compare the colors at each adjustment amount.

Further, in the invention according to claim 5 as a preferable configuration example when performing trial and error, the adjustment amount candidate data acquisition means prints an image with each gradation value corrected by the adjustment amount candidate data. Accept the input of the position to
The print execution data generation unit is configured to generate print execution data to be printed at the received position, based on the raster data corrected by the adjustment amount candidate data. That is, it is possible to perform printing by arranging a plurality of images whose colors have been adjusted by a plurality of adjustment amounts at positions desired by the user on the print medium. Therefore, it is possible to print in a layout in which the user can easily compare colors during trial and error, and it is possible to easily grasp the adjustment amount that provides the color that is preferable to the user.

Further, in the invention according to claim 6 as an example of a configuration suitable for performing trial and error, the adjustment amount candidate data acquisition means corrects the adjustment amount candidate data in the print image of the print data. The print execution data generation means receives the input of the portion to be printed, and generates the print execution data for printing the received portion by each raster data after correction by the adjustment amount candidate data. That is, when performing color adjustment, it is often the case that a specific portion is focused on rather than the entire image, and by printing the portion of interest, it is possible to directly compare and compare the colors of the portion, It is possible to easily grasp the adjustment amount that gives the color preferable to the user.

This configuration is particularly preferable when combined with the configuration for determining the print layout for a plurality of images whose colors have been adjusted as described above and executing printing. That is, according to the combination, the layout can be such that the specific portions of the image are adjacent to each other on the print medium, and as a result, the colors of the portions can be easily compared and the adjustment amount for obtaining the desired color. Can be easily grasped.

Further, in the invention according to claim 7, the print execution data generating means is configured to generate print execution data for printing a plurality of patches according to predetermined gradation value data. That is, in the above configuration, the plurality of images in which the raster data generated from the print data acquired by the print data acquisition unit are corrected are printed, and the print result varies depending on the acquired print data. On the other hand, since the patch based on the predetermined gradation value data is not related to the print data, it is possible to grasp how much the gradation value data is corrected regardless of the print data. , Can be useful when considering the amount of adjustment.

As described above, the method of saving the raster data after rendering and performing the trial and error by adjusting each color component of the raster data is not necessarily limited to the actual apparatus. Claim 8,
The invention is also effective as a method invention like the invention described in claim 9. Further, the print control apparatus described above may exist alone or may be used in a state of being incorporated in a certain device. The idea of the invention includes various aspects. Further, it can be changed as appropriate such as software or hardware.

When the software of the printing apparatus is embodied as an example of embodying the idea of the invention, it naturally exists and is used even on a recording medium recording such software.
As an example, the inventions described in claims 10 and 11 specify the invention as a medium in which a print control program is recorded. Of course, the recording medium may be a magnetic recording medium or a magneto-optical recording medium, and any recording medium developed in the future can be considered in exactly the same manner.

There is no question about the copying stage of the primary copy, the secondary copy, etc., and they are the same. Although different from the above medium, if the communication method is used as a supply method, the communication line serves as a transmission medium and the present invention is used. Of course, claim 12 and claim 13
It can also be specified as an invention of a program like the invention described in. Further, the print control method, the medium in which the print control program is recorded, and the print control program can be configured to correspond to the above claims 3 to 7.

[0029]

As described above, according to the first, eighth, tenth, and twelfth aspects of the present invention, raster data generation processing with a heavy processing load each time adjusted image data is printed. It is possible to provide a print control apparatus, a print control method, a medium in which a print control program is recorded, and a print control program that can perform trial and error by adjusting colors while not performing the above. In addition, claim 2,
According to the inventions according to claim 9, claim 11, and claim 13, it is possible to obtain print results with a plurality of adjustment amounts by one print, and it is easy to perform print results with each adjustment amount during trial printing. Can be compared. Further, according to the invention of claim 3, it is possible to perform printing with the adjustment amount candidate data designated and input as the adjustment amount of the raster data, and to perform the printing with the preferable adjustment amount obtained by trial and error. You can

Further, according to the invention of claim 4,
It is very easy to compare the colors at each adjustment amount.
Further, according to the invention of claim 5, it is possible to easily grasp the adjustment amount that provides a color preferable for the user. Further, according to the invention of claim 6, it is possible to easily grasp the adjustment amount that gives a color preferable to the user. Further, according to the invention of claim 7, it is possible to provide a convenient index when examining the adjustment amount.

[0031]

BEST MODE FOR CARRYING OUT THE INVENTION Here, embodiments of the present invention will be described in the following order. (1) Configuration of the present invention: (2) Input of adjustment amount candidate data: (3) Correction of raster data: (4) Printing process: (5) Other embodiments:

(1) Configuration of the present invention: FIG. 1 shows a schematic hardware configuration of a computer functioning as a print control device according to the present invention, and FIG. 2 functions the computer as a print control device according to the present invention. 3 is a block diagram of a print control application program (APL) for performing printing. First, the schematic hardware configuration shown in FIG. 1 will be described. The computer 10 is provided with a CPU 11 which is the center of the arithmetic processing, and the CPU 11 has a system bus 12 through which the described RO such as BIOS is written.
The M13 and the RAM 14 can be accessed.

A hard disk drive (HDD) 15 as an external storage device, a flexible disk drive 16 and a CD-ROM drive 17 are connected to the system bus 12, and the OS stored in the HDD 15 is connected to the OS.
20 and application programs are transferred to the RAM 14, and the CPU 11 appropriately accesses the ROM 13 and the RAM 14 to execute the software. Ie RAM
Various programs are executed using 14 as a temporary work area.

The serial communication I / O 19a is connected with operation input devices such as a keyboard 31 and a mouse 32, and a display 1 for display is provided via a video board (not shown).
8 is also connected. Further, the printer 40 is a USB
A connection is possible via the dedicated I / O 19b. Although the configuration of the computer 10 has been described in a simplified manner, a computer having a general configuration can be used as a personal computer. Of course, the computer to which the present invention is applied is not limited to a personal computer. Although this embodiment is a so-called desktop computer, it may be a laptop computer or a mobile computer. Further, the connection interface between the computer 10 and the printing device 40 is not limited to the above-mentioned one, and SCSI connection, I compliant with the IEEE 1394 standard
It is possible to adopt various connection modes such as connection with / O,
The same applies to any connection mode developed in the future.

In this example, each program type is the HDD 15
However, the recording medium is not limited to this. For example, it may be the flexible disk 16a or the CD-ROM 17a. The programs recorded on these recording media are read by the computer 10 via the flexible disk drive 16 and the CD-ROM drive 17 and installed in the HDD 15. Then, it is read into the RAM 14 via the HDD 15 and controls the computer. The recording medium is not limited to this, and may be a magneto-optical disk or the like.

It is also possible to use a nonvolatile memory such as a flash card as the semiconductor device, and when the external file server is accessed and downloaded via a modem or a communication line, the communication line transmits. The present invention is used as a medium. The printing device 40 includes a CPU, firmware, and the like (not shown), and prints the print execution data transmitted from the computer 10 according to a program described in the firmware.
It is received via the SB I / O 19b. The print execution data includes dot data instructing ejection / non-ejection of ink in each raster and ESC instructing a print layout.
/ P language.

The printing device 40 interprets the printing execution data, and executes printing while driving the head and the printing paper transport mechanism with a predetermined motor. The printing device 40 in the present embodiment is an inkjet printer that can use four color inks, and can be equipped with ink cartridges of each color of CMYK (K is black), but of course, CMYKlcl
The present invention can be applied to various models such as six colors of m (lc is light cyan, lm is light magenta) ink and DY (dark yellow) ink added, and light ink can be used for K ink and the like. You can Further, the printing device 40 is capable of printing a large printing sheet such as A0 size or B0 size, and when the present invention is applied to the printing device capable of the large printing, the effect of improving the processing speed is remarkably exhibited. Is suitable. Of course, the present invention can be applied to other than the ink jet printer and the printing apparatus for large plate printing.

On the other hand, as shown in FIG. 2, in the computer 10 according to the present embodiment, the printer driver (PRTDRV) 21 and the input device driver (D
Each peripheral device is controlled by the RV) 22 and the display driver (DRV) 23. Display DRV
Reference numeral 23 is a driver for controlling the display of image data or the like on the display 18, and the input device DRV 22 receives a code signal from the keyboard 31 or the mouse 32 input via the I / O 19a for serial communication and makes a predetermined input. A driver that receives operations.

The image processing APL 24 is so-called photo retouching software, which can process and print an image composed of dot matrix pixels, and can output the image as print data described in Postscript. . In the present embodiment, the printing apparatus 40 is configured to execute printing using the print execution data described in the ESC / P language as described above, and the print control APL5
At 0, Postscript is converted to ESC / P. In the present invention, it is possible to adjust the color of the printed image by performing trial printing several times before obtaining the final print result. The print control APL 50 employs a configuration capable of omitting redundant processing when performing trial printing, and as a result, print execution data can be obtained at high speed.

The print control APL 50 comprises a print data acquisition module 51, a PDL interpretation section 52, an adjustment amount candidate data acquisition section 53, a gradation value data correction module 54, a print execution data generation section 55, and a designation input module 56. There is. The print data acquisition module 51 uses the image processing A
This is a module that acquires print data described in Postscript when a print instruction is issued in the PL 24, and the acquired print data is passed to the PDL interpreter 52. The PDL interpreter 52 includes an interpreter 52a and a rendering module 52b, and the print data transferred is subjected to language interpretation by the interpreter 52a.

That is, the interpreter 52a interprets the drawing commands and the like described in the print data, expresses the pixels forming the image with a resolution of 720 × 720 dpi, and generates an intermediate code specifying the color of each pixel. .
This intermediate code is passed to the rendering module 52b. The rendering module 52b includes a color conversion unit 52b1 and a color correction unit 52b2, and the color conversion unit 52b1 commercializes the color of each pixel based on the intermediate code.
Raster data in which gradations are expressed in 256 gradations for each color of YK is generated. In the present embodiment, the raster data is stored in the HDD 15 (raster data a ₀ ).

The color correction unit 52b2 can correct each color gradation value of the raster data generated by the color conversion unit 52b1. That is, in the present embodiment, the adjustment amount data 15a determined after trial printing can be used to grasp the correction amount of each color, and the raster data a ₀ can be corrected to generate new raster data A. The adjustment amount data 15a is a parameter of the correction amount determined after trial printing, and by generating and storing the adjustment amount data 15a, raster data corrected by the PDL interpretation unit 52 can be generated thereafter. , It becomes possible to print by reflecting the adjustment in trial printing.

The adjustment amount candidate data acquisition unit 53 uses the above-mentioned data.
Outputs a predetermined signal to the spray DRV23, CM
Display a UI to input the adjustment amount for each color of YK
Input device DRV22
Receives a predetermined signal from the device and acquires the adjustment amount input by the user
can do. This adjustment amount is the adjustment amount candidate data b ₀
~ B_nIs stored in the HDD 15. This embodiment
, The adjustment amount is input each time trial printing is executed.
Attached and adjusted amount candidate data b₀~ B_nTo save
Any of these is referred to as the adjustment amount data 15a.
Whether or not it is set by the designated input module 56.
You can

That is, the designated input module 56, like the adjustment amount candidate data acquisition unit 53, displays the display D.
A predetermined UI is displayed via the RV 23 and the input device DRV 22 to accept a designated input of any adjustment amount candidate data, and the received adjustment amount candidate data is stored in the HDD 15 not as a candidate but as the adjustment amount data 15a. Has become. Therefore, it is possible to select the adjustment amount data 15a that gives a preferable color after a plurality of trial prints.

The tone value data correction module 54 is
The adjustment amount candidate data acquisition unit 53 saves the data in the HDD 15.
Adjustment amount candidate data b₀~ B_nGet the above raster day
A ₀This is a module for correcting. Sanawa
The adjustment amount candidate data b₀~ B_nCMYK specified in
Based on the adjustment amount of each color, raster data a₀Each color floor
Raster data c₀~ C_nTo generate.

The print execution data generation unit 55 is a module for generating print execution data from raster data, and includes the halftone module 55a and the ESC / P module 5.
5b and. The halftone module 55a applies an algorithm such as a dither method or an error diffusion method to the bitmap data represented by the gradation value of each color of CMYK to eject each pixel of each nozzle of the printing device 40 by ejecting or not ejecting each pixel. The dot data expressing the gradation is generated. In the halftone module 55a, it acquires bitmap data of each raster from the raster data _{a 0, A, c 0 ~c} n, it is possible to generate dot data.

In the ESC / P module 55b, a command in ESC / P language is added to the dot data generated by the halftone module 55a, and the layout (print paper size or Print execution data for executing printing is generated according to a print position or the like. When the print execution data is generated, the print execution data generation unit 55 causes the PRTDR to be executed.
The print execution data is delivered to V21. PRTDRV21
Sends the print execution data to the printing apparatus 40 via the USB I / O 19b, and the printing apparatus 40 receives the print execution data and executes printing.

That is, when the adjustment amount candidate data acquisition unit 53 acquires the adjustment amount of each color of CMYK, it is possible to execute the printing based on the raster data corrected by the adjustment amount, and the designated input module. 5
6, the adjustment amount data 15a as the adjustment amount of each color of CMYK
Is registered, the registered adjustment amount data 15a is registered.
It is possible to execute printing based on the raster data corrected in. Therefore, the user can repeatedly input the adjustment amount in the adjustment amount candidate data acquisition unit 53, repeat the trial printing, and finally grasp the preferable adjustment amount data 15a. Of course, in the first trial printing, the adjustment amount is set to "0" and the print execution data is not corrected,
It is also possible to execute printing.

In this trial printing, the gradation value data correction module 54 corrects the raster data a ₀ already generated and stored in the HDD 15. Therefore, in the present invention, the PDL interpretation unit 52 is used for trial printing. There is no need to repeat the processing by. The processing load on the PDL interpreting unit 52 is generally high, and is particularly remarkable in large plate printing. Therefore, the trial printing can be executed without performing the interpreting process and the rendering process in the PDL interpreting unit 52, and the trial printing can be repeated at high speed.
In trial printing, if it takes a lot of time to obtain a next print result after obtaining one print result, the drying degree of the ink on the printing paper and the surrounding temperature and humidity will be different. It becomes difficult to compare two print results under the same conditions. However, according to the present invention, the next print result can be obtained very quickly after obtaining a certain print result, so that the colors of both print results can be compared under favorable conditions.

(2) Input of adjustment amount candidate data: The specific configuration of this embodiment will be described below. FIG. 3 shows an adjustment amount input UI displayed under the control of the adjustment amount candidate data acquisition unit 53. As shown in the figure, in the UI, a so-called curve editor is used to adjust the input / output relationship of each color. Here, the input is the gradation value before correction and the output is the gradation value after correction. The adjustment graph 18a has an input gradation value on the horizontal axis and an output gradation value on the vertical axis, and both have a value range of 0 to 255.
An adjustment color selection box 18 is provided above the adjustment graph 18a.
b is provided, and the color to be adjusted can be specified in the adjustment color selection box 18b.

That is, in the adjustment graph 18a, C
The input / output relationship of each color of MYK is displayed in a graph, and the curve in the adjustment graph 18a can be changed for the color selected in the adjustment color selection box 18b.
In the present embodiment, the shape of the curve can be changed by moving the curve related to input and output while pointing with the mouse pointer. Of course, it is also possible to obtain an adjustment result having an inflection point in the curve by making it possible to select a plurality of points and draw a spline curve. Incidentally, FIG. 3 shows a state in which the curve is changed for cyan.

The shape of the curve is determined for each color and OK
When the button 18c is clicked, the adjustment amount candidate data for correcting the raster data according to the curve is stored in the HDD 1
Stored in 5. Further, in the UI shown in FIG. 3, it is possible to register a plurality of adjustment amount candidate data, and each candidate is distinguished by a number. That is, the number ~
As shown in the upper left part of the screen, each candidate is distinguished and in FIG. Of course,
The number of candidates may be three or more, and the number of stored adjustment amount candidate data is preferably the number of candidates. Also, a switch button 18d is provided at the bottom of the screen,
The candidate number can be switched by clicking the switching button 18d. Adjustment amount candidate data for each candidate is further stored on the switching button 18d in the HDD.
15 shows whether or not it has been registered and whether or not adjustment is currently being performed. In the present embodiment, when the OK button 18c is clicked, trial printing is executed with the adjustment amount of the candidate number that was adjusted immediately before.

(3) Correction of raster data: FIG. 4 is an explanatory view for explaining how the gradation value data correction module 54 corrects the raster data after the adjustment amount candidate data is saved by the UI. . The raster data a ₀ is schematically shown on the left side of FIG. That is, the raster data a ₀ is provided with bitmap data of each color of CMYK, and in the figure, each of the squares described as CMYK indicates that the image is composed of the bitmap data of each color.

The adjustment amount candidate data is information specified by the tone curve for each color, and defines the correction amount for each color gradation value of the raster data shown on the left side of FIG. Therefore, when the correction value defined by the tone curve is applied to each color, bitmap data in which the gradation value of each pixel is corrected for each color is obtained. Figure 4
The quadrangle on the right side shows that an image is composed of the corrected color gradation values C'M'Y'K '. As a result,
A set of raster data representing a color-corrected image is generated, print execution data is generated from the raster data, and printing is executed, so that trial printing in which the color of the image is corrected can be executed.

(4) Printing Process: Next, a series of printing processes according to the present invention will be described with reference to a flowchart. Figure 5
Is a flowchart of the printing process. When the print instruction is issued by the image processing APL 24, the print control A
The PL 50 is activated, and the print data acquisition module 51 acquires the Postscript data output by the image processing APL 24 (step S100). The acquired Postscript data is passed to the PDL interpreter 52, and the interpreter 52a interprets the Postscript and generates the intermediate code (step S10).
5).

The rendering module 52b acquires the intermediate code, performs rendering by the color conversion unit 52b1 and generates raster data a ₀ (step S110). This raster data a ₀ is compressed and stored in the HDD 15 (step S115). The printing apparatus 40 according to the present embodiment is capable of large-scale printing and is compressed and stored in the HDD 15 because the raster data capacity is large. However, it goes without saying that compression is not essential and the capacity of the HDD 15 has a margin. Uncompressed raster data may be stored in some cases, such as when large-scale printing is not performed.

When the raster data a ₀ is stored in the HDD 15, the adjustment amount candidate data acquisition unit 53 is activated and the user performs adjustment amount candidate setting processing (step S120). When this adjustment amount candidate setting process is completed, the adjustment amount candidate data b ₀ is stored in the HDD 15. After a plurality of trial prints, a plurality of adjustment amount candidate data are stored, and any one of them can be designated in a step described later. Next, the print control APL 50 decompresses the raster data a ₀ (step S125), and then the gradation value data correction module 5 described above.
Step 4 determines whether or not the adjustment amount candidate data has been saved in the routine of step S120 (step S1).
30).

If it is determined in step S130 that the adjustment amount candidate data has been saved, the raster data a
₀ and the saved adjustment amount candidate data are acquired and CMYK
The correction by the tone curve is performed for each color (step S135). If it is not determined in step S130 that the adjustment amount candidate data has been saved, the above step S
Skip 135. Print execution data generation unit 55 performs processing by halftone module 55a for either raster data c ₀ to c _n after the raster data a ₀ or correction is not performed the correction (step S14
0), and ES by ESC / P module 55b
C / P is added (step S145).

As a result, since the print execution data capable of executing printing by the printing device 40 is generated, the print execution data generating unit 55 transfers the print execution data to the PRTDRV 21 (step S150), and the printing device 40 causes the print execution data to be generated. Print it. In the present invention, the user who visually recognizes the print result can adjust the color, and a UI (not shown) is displayed to inquire whether the user wants to continue the color adjustment (step S155). If the user makes an input indicating that the user wants to make adjustments using the UI, step S
In step S12, it is determined that the adjustment should be continued in step 155.
The processing after 0 is repeated. Therefore, it is possible to obtain a plurality of print results by changing the color adjustment amount.

If it is not determined in step S155 that the adjustment should be continued, the designated input module 56 is activated to display a UI (not shown) and any of the adjustment amount candidate data b _{0 to} b _n stored in the HDD 15 is displayed. An input to specify is accepted (step S160). That is, it is possible to select which candidate should be used for the adjustment amount. When the designation of the adjustment amount candidate data is received, the designated adjustment amount candidate data is stored in the HDD 15 as the adjustment amount data 15a (step S165). Therefore,
After this, the color correction unit 52 of the rendering module 52b
For b2, it becomes possible to perform color correction of the raster data after color conversion using the adjustment amount data. Since the print execution data generation unit 55 generates print execution data based on the color-corrected raster data, printing adjusted to the color desired by the user will be performed. As described above, in the present embodiment, it is possible to individually adjust the colors of the images to be printed, and it is possible to perform printing with the colors optimized for the individual images.

As described above, in this embodiment, a plurality of adjustment amount candidate data are saved by a plurality of trial prints, and the adjustment amount candidate data is saved according to the flowchart shown in FIG. That is, when the PDL interpretation unit 52 saves the raster data a ₀ in the HDD 15 in step S115, the adjustment amount candidate data acquisition unit 53.
Sends a predetermined signal to the display DRV 23 to display a UI (not shown), and determines whether or not the user desires to execute color adjustment (step S200). The user inputs a request as to whether or not to execute color adjustment via the keyboard 31 and the mouse 32.

The input contents are accepted via the input device DRV22, and if it is not determined in step S200 that the input to execute the color adjustment has been made, steps S210 to S240 are skipped. Step S200
When it is determined that the input to execute the color adjustment is made, the adjustment amount candidate data acquisition unit 53 further sends a predetermined signal to the display DRV 23 to display the UI of the tone curve editor shown in FIG. Display (step S2
10). Then, the operation input of the user is accepted via the input device DRV22, and the tone curve input of each color at each candidate number is accepted (step S220).

Then, it is determined whether or not the click input of the OK button has been received (step S230), and the processing of step S220 and subsequent steps is repeated until it is determined that the click input of the OK button has been received in the same step S230. If it is determined in step S230 that the click input of the OK button is accepted, the adjustment amount candidate data indicating the adjustment amount according to the tone curve input in step S220 is stored in the HDD 15 (step S240).
In this embodiment, an inquiry is made in step S155 shown in FIG. 5 as to whether or not to continue the adjustment each time printing is executed.
When the adjustment is continued, the adjustment amount candidate setting process shown in FIG. 6 is performed, so that it is possible to change the adjustment amount each time printing is executed and execute printing.

(5) Other Embodiments: As described above, according to the present invention, it is possible to obtain a plurality of print results in which color correction is performed with a plurality of adjustment amounts, and therefore, by repeating trials, it is possible for a user to obtain a desired result. You can easily get close to the colors.
Therefore, it suffices to be able to compare a plurality of print results, and it is convenient to set a print layout to obtain easier print comparison. In addition, it is convenient for the user to select the portion to be printed, because the user may pay particular attention to adjust the color not only the entire image but also a part of the image. 7 and 8 show flow charts in the embodiment adopting such a configuration.

This embodiment can be realized by the hardware and the configuration of the print control APL 50 of the first embodiment shown in FIGS.
It is necessary to change the functions of the adjustment amount candidate data acquisition unit 53, the gradation value data correction module 54, and the print execution data generation unit 55 of the PL 50. In the flowcharts shown in FIGS. 7 and 8, the same steps as those in the first embodiment are designated by the same reference numerals, and the description below will focus on the portions having different functions from those in the first embodiment.

As shown in FIG. 7, steps S100 to S1
The process 15 is the same as that of the first embodiment, and the Postscript data is interpreted and stored in the HDD as raster data.
It is stored in 15. The adjustment amount candidate setting process in step S120 has a flow shown in FIG.
0 to S240 are the same as those in the first embodiment. That is, the tone curve of each candidate number can be input by the tone curve editor as shown in FIG. 3, and the adjustment amount candidate data can be stored in the HDD 15.

The adjustment amount candidate data acquisition unit 53 in this embodiment can further accept the setting input of the print layout, and outputs a predetermined signal to the display DRV 23 to display the UI shown in FIG. 9 (step S4
00). In the UI, a print image is displayed on the upper part of the UI, and a rectangular area can be selected in the print image by operating the mouse 32. This rectangular area designates a portion to be printed for comparison of the adjusted colors.

Further, it is possible to display a schematic diagram of the printing paper at the bottom of the UI and specify the position on the printing paper where the selected rectangular area is to be arranged. Further, the above candidate number can be designated for each of these areas. Therefore, it is possible to print a plurality of rectangular areas in which the CMYK colors are adjusted by different adjustment amount candidate data on one printing sheet. The adjustment amount candidate data acquisition unit 53
A user's operation input is accepted via the input device DRV22, the rectangular area is designated and the layout on the print sheet is accepted (step S405), and the click input of the OK button on the UI shown in FIG. 9 is accepted. It is determined whether or not (step S410).

When it is determined in step S410 that the click input of the OK button has been accepted, the adjustment amount candidate data acquisition unit 53 causes the layout data indicating the layout of the rectangular areas on the printing paper and the correspondence of the adjustment amount candidate data to each rectangular area. Is stored in the HDD 15 (step S41)
5). When this adjustment amount candidate setting process is completed, the flow returns to the flow shown in FIG. 7, and the raster data a ₀ is decompressed in step S125. Gradation value data correction module 54
Of the decompressed raster data a ₀ obtains the CMYK gradation value of the portion designated by the rectangular area and corrects the tone curve with any of the adjustment amount candidate data input in FIG. Is carried out (step S300).

The print execution data generating section 55 executes step S
Halftone processing is performed on the corrected raster data generated in 300 (step S305) to obtain dot data. Then, it is determined whether or not the correction has been completed for all of the adjustment amount candidate data input in FIG. 3 (step S308), and the steps from step S125 onward are performed until the correction is completed for all the input candidates. Repeat the process. That is, in performing the correction with each adjustment amount candidate data in the present embodiment, the above step S11 is performed.
The raster data saved in 5 can be reused. If it is determined in step S308 that the correction has been completed for all candidates, the dot data generated in step S305 is referred to as E while referring to the layout data.
SC / P is added to generate print execution data for executing printing in the layout as set (step S31).
0). In step S150, printing is performed using the generated print execution data, so that a print result as shown in FIG. 10 can be obtained.

That is, FIG. 10 shows an example of printing paper after printing, in which the images of the rectangular regions are arranged in the center according to the printing layout designated in FIG. Each printed area is corrected by different adjustment amount candidate data, and the colors of this area can be compared in detail by arranging the images adjacent to each other as shown in FIG. Therefore, the most preferable color can be easily grasped. In the present embodiment, CM
For each of the YK colors, 16 representative gradation values are corrected with the adjustment amount candidate data, and the patch is printed with the raster data composed of the corrected gradation values.
Therefore, the user can easily understand the adjustment state for each color by visually recognizing the print result. And
By the user specifying the adjustment amount candidate data in steps S160 and 165, it is possible to determine the adjustment amount data that gives the most preferable color thereafter.

As described above, in the present invention, the color adjustment is performed on the raster data after the interpreting process and the rendering process are performed on the print data described in a predetermined page description language. Further, by storing a plurality of adjustment amount candidate data, a plurality of adjustments can be performed, and a plurality of trial prints with different color adjustment amounts can be executed. Therefore, it is not necessary to repeat the interpreting process and the rendering process in the trial process, and the colors can be easily compared by trial and error to easily adjust to the most preferable color.

[Brief description of drawings]

FIG. 1 is a schematic hardware configuration diagram of a computer that implements the present invention.

FIG. 2 is a block diagram of a print control APL.

FIG. 3 is a diagram showing a UI for inputting an adjustment amount.

FIG. 4 is an explanatory diagram illustrating a manner of correcting raster data.

FIG. 5 is a flowchart of print processing.

FIG. 6 is a flowchart of adjustment amount candidate setting processing.

FIG. 7 is a flowchart of print processing according to the second embodiment.

FIG. 8 is a flowchart of adjustment amount candidate setting processing in the second embodiment.

FIG. 9 illustrates a print layout input UI.

FIG. 10 is a diagram illustrating an example of a print result.

[Explanation of symbols]

10 ... Computer 11 ... CPU 12 ... System bus 13 ... ROM 14 ... RAM 15 ... HDD 15a ... Adjustment amount data 16 ... Flexible disk drive 17 ... CD-ROM drive 18 ... Display 18a ... Adjustment graph 18b ... Adjustment color selection box 18c ... OK button 18d ... Switch button 21 ... PRTDRV 22 ... Input device DRV 23 ... Display DRV 25 ... APL 31 ... Keyboard 32 ... Mouse 40 ... Printing device 50 ... Print control APL 51 ... Print data acquisition module 52 ... PDL interpreter 52a ... Interpreter 52b ... Rendering module 52b1 ... Color conversion unit 52b2 ... Color correction unit 53 ... Adjustment amount candidate data acquisition unit 54 ... Gradation value data correction module 55 ... Print execution data generation unit 55a ... Halftone module 55b ... ESC / P module 56 ... Designation input module

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) G06T 5/00 100 H04N 1/40 D H04N 1/407 1/46 Z 1/46 1/40 101E F term (reference) 2C187 AF03 BF10 BG03 BG06 GA01 GB01 5B021 LG07 LG08 NN23 5B057 AA11 BA24 BA25 BA26 CA01 CA08 CA12 CA16 CB01 CB08 CB12 CB16 CC01 CE11 CE17 CH07 CH08 CH11 CH12 DA04 DA08 DA15 DA12 DA08 P12PQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQH PQ22 SS02 TT02 TT08 5C079 HB03 KA04 LA12 LA31 LB01 MA02 MA04 MA11 MA17 MA20 NA03 NA27 PA03 PA07

Claims (13)

[Claims] 1. A raster composed of print data acquisition means for acquiring print data described in a predetermined page description language, and gradation value data of pixels constituting each raster by interpreting the page description language of the print data. Raster data generating means for generating data, raster data storing means for storing the generated raster data, and color adjustment input for adjusting the value of the gradation value data for each color component to receive the adjustment amount of each color component. Adjustment amount candidate data obtaining means for obtaining the adjustment amount candidate data, and a floor for obtaining the raster data and correcting each gradation value data of the raster data according to the adjustment amount candidate data received by the adjustment amount candidate data obtaining means. A tone value data correcting unit and a printing device while performing raster processing by obtaining raster data including the corrected tone value data. The adjustment amount candidate data acquisition unit includes a print execution data generation unit that generates print execution data capable of executing printing, and a print execution data output unit that outputs the print execution data to a printing apparatus. After the print execution data is output by the print execution data output unit and printing is performed, adjustment amount candidate data indicating an adjustment amount different from that at the time of printing is acquired for trial, and the gradation value data correction unit is The raster data stored in the raster data storage means is acquired again, the raster data is corrected in accordance with the adjustment amount candidate data acquired for the trial, and the raster data is transferred to the print execution data generating means and generated. By outputting the print execution data to the print execution data output means, a single raster image stored in the raster data storage means is output. It is possible to perform trial printing while reusing the printer data, and further, a designated input receiving means for receiving a designated input for designating any one of the adjustment amount candidate data, and an adjustment amount candidate designated by the designated input receiving means. An adjustment amount data storage unit that stores data as adjustment amount data of each gradation value data. 2. A raster composed of print data acquisition means for acquiring print data described in a predetermined page description language, and gradation value data of pixels forming each raster by interpreting the page description language of the print data. Raster data generating means for generating data, raster data storing means for storing the generated raster data, and a plurality of different adjustment amounts by receiving color adjustment input for adjusting the value of the gradation value data for each color component. Adjustment amount candidate data obtaining means for obtaining adjustment amount candidate data, and raster data stored in the raster data storage means are obtained a plurality of times, and according to the plurality of adjustment amount candidate data received by the adjustment amount candidate data obtaining means, The gradation value data correction means for generating a plurality of raster data by correcting each gradation value data of each raster data, and each gradation value data A print execution data generation unit that acquires a plurality of corrected raster data and generates print execution data that allows the printing apparatus to perform printing while performing halftone processing on each raster data, and the same print execution Print execution data output means for outputting data to the printing device, designated input acceptance means for accepting designated input for designating any of the adjustment amount candidate data, and adjustment amount candidate data designated by the designated input acceptance means And an adjustment amount data storage unit for storing as the adjustment amount data of each gradation value data. 3. The raster data generating means, when the adjustment amount data is stored in the adjustment amount data storage means, corrects each gradation value data by the adjustment amount data to generate the raster data. The print control device according to claim 1, wherein the print control device is a print control device. 4. The print execution data generating means generates print execution data for printing an image of each raster data corrected according to the plurality of adjustment amount candidate data on a single medium. The print control device according to any one of claims 1 to 3. 5. The adjustment amount candidate data acquisition means receives an input of a position to print an image at each gradation value corrected by the adjustment amount candidate data, and the print execution data generation means receives the adjustment amount candidate data. The print control apparatus according to any one of claims 1 to 4, wherein print execution data to be printed at the received position is generated based on the raster data after being corrected by. 6. The adjustment amount candidate data acquisition means receives an input of a portion of the print image formed by the print data to be corrected and printed by the adjustment amount candidate data, and the print execution data generation means is used for the adjustment amount candidate. The print control apparatus according to any one of claims 1 to 5, wherein print execution data for printing the received portion is generated based on each raster data corrected by the data. 7. The print execution data generating means generates print execution data for printing a plurality of patches according to predetermined gradation value data set in advance, according to any one of claims 1 to 6. The print control device according to any one of claims. 8. A print control method for controlling a printing device to execute printing based on print data described in a predetermined page description language, comprising: a print data acquisition step for acquiring the print data; A raster data generating step of interpreting a page description language of data and generating raster data composed of gradation value data of pixels forming each raster, and a raster data storing step of storing the generated raster data in a predetermined storage medium. An adjustment amount candidate data acquisition step of receiving a color adjustment input for adjusting the value of the gradation value data for each color component and acquiring adjustment amount candidate data indicating the adjustment amount of each color component; and acquiring the raster data. Gradation value data correction process for correcting each gradation value data of the raster data according to the adjustment amount candidate data received in the adjustment amount candidate data acquisition step. And a print execution data generation step of generating print execution data capable of executing printing with a printing device while acquiring raster data composed of each corrected gradation value data and performing halftone processing. It is possible to execute printing in the printing device by a print execution data output process of outputting execution data to the printing device. In the adjustment amount candidate data acquisition process, the print execution data is output in the print execution data output process. After outputting and printing, the adjustment amount candidate data indicating the adjustment amount different from that at the time of printing is acquired for trial, and the gradation value data correction step is performed by the raster data stored in the predetermined storage medium. Is acquired again, the raster data is corrected according to the adjustment amount candidate data acquired for the trial, and this raster data is generated as the print execution data. Passing the extent, by the generated print execution data is to be output to the print execution data output step, being capable of performing trial printing while reusing a single raster data stored in the predetermined storage medium,
Further, a designated input receiving step for receiving a designated input for designating any one of the adjustment amount candidate data, and an adjustment amount for storing the adjustment amount candidate data designated by the designated input receiving step as the adjustment amount data of each gradation value data. A data storage step, and a print control method. 9. A print data acquisition step of acquiring print data described in a predetermined page description language, and a raster composed of gradation value data of pixels forming each raster by interpreting the page description language of the print data. A raster data generation step of generating data, a raster data storage step of storing the generated raster data in a predetermined storage medium, and adjustment by receiving a color adjustment input for adjusting the value of the gradation value data for each color component Adjustment amount candidate data acquisition step of acquiring a plurality of adjustment amount candidate data having different amounts, and a plurality of adjustments received by the adjustment amount candidate data acquisition step by acquiring raster data stored in the predetermined storage medium a plurality of times. A gradation value data correction step of generating a plurality of raster data by correcting each gradation value data of each raster data according to the quantity candidate data; A print execution data generation step of generating a plurality of pieces of raster data whose data have been corrected and performing print processing by a printing apparatus while performing halftone processing on the respective raster data; A print execution data output process for outputting print execution data to a printing apparatus, a designated input acceptance process for accepting a designated input for designating any of the above adjustment amount candidate data, and an adjustment amount designated by the designated input acceptance process. An adjustment amount data storing step of storing the candidate data as adjustment amount data of each gradation value data. 10. A medium for recording a print control program for controlling a printing apparatus to execute printing based on print data described in a predetermined page description language, the print data acquiring function acquiring the print data. And a raster data generation function for interpreting the page description language of the print data and generating raster data composed of gradation value data of pixels forming each raster, and storing the generated raster data in a predetermined storage medium. A raster data storage function; an adjustment amount candidate data acquisition function that receives a color adjustment input for adjusting the value of the gradation value data for each color component and obtains adjustment amount candidate data indicating the adjustment amount of each color component; Data is acquired and each gradation value data of the raster data is corrected according to the adjustment amount candidate data received by the adjustment amount candidate data acquisition function. A gradation value data correction function and a print execution that generates print execution data that allows the printing apparatus to execute printing while acquiring raster data consisting of each corrected gradation value data and performing halftone processing. The data generation function and the print execution data output function that outputs the print execution data to the printing apparatus can execute printing in the printing apparatus. The adjustment amount candidate data acquisition function is the print execution data After the print execution data is output by the output function and printing is performed, the adjustment amount candidate data indicating the adjustment amount different from that at the time of printing is acquired for trial, and the gradation value data correction function is performed by the predetermined storage medium. The raster data stored in is re-acquired, the raster data is corrected according to the adjustment amount candidate data acquired for the trial, and this raster data is By passing the print execution data to the print execution data generation function and outputting the generated print execution data to the print execution data output function, trial printing can be performed while reusing single raster data stored in the predetermined storage medium. Is feasible,
Further, a designated input reception function that receives a designated input that designates any of the above adjustment amount candidate data, and an adjustment amount that stores the adjustment amount candidate data designated by the designated input reception function as the adjustment amount data of each gradation value data. A medium having a print control program recorded thereon, the medium having a data storage function. 11. A print data acquisition function for acquiring print data described in a predetermined page description language, and a raster made up of gradation value data of pixels forming each raster by interpreting the page description language of the print data. A raster data generation function that generates data, a raster data storage function that stores the generated raster data in a predetermined storage medium, and a color adjustment input that adjusts the value of the gradation value data for each color component A plurality of adjustment amount candidate data acquisition functions for acquiring a plurality of adjustment amount candidate data with different amounts, and a plurality of adjustments received by the adjustment amount candidate data acquisition function by acquiring raster data stored in the predetermined storage medium a plurality of times. A gradation value data correction function for generating a plurality of raster data by correcting each gradation value data of each raster data according to the amount candidate data, and A print execution data generation function that acquires a plurality of raster data in which the value data is corrected and performs print processing on the respective raster data while performing halftone processing on the respective raster data, and that generates print execution data. The print execution data output function that outputs the print execution data to the printing device, the designated input reception function that receives the designated input that designates one of the adjustment amount candidate data, and the adjustment designated by the designated input reception function A medium having a print control program recorded thereon, which has an adjustment amount data storage function of storing the amount candidate data as adjustment amount data of each gradation value data. 12. A print control program for controlling a printing device to execute printing based on print data described in a predetermined page description language, the print data acquiring function acquiring the print data, A raster data generation function that interprets a page description language of data and generates raster data composed of gradation value data of pixels that configure each raster, and a raster data storage function that stores the generated raster data in a predetermined storage medium. An adjustment amount candidate data acquisition function of receiving a color adjustment input for adjusting the value of the gradation value data for each color component and acquiring adjustment amount candidate data indicating an adjustment amount of each color component; and acquiring the raster data. Gradation value data for correcting each gradation value data of the raster data according to the adjustment amount candidate data received by the adjustment amount candidate data acquisition function. A correction function, and a print execution data generation function for generating print execution data capable of executing printing with a printing device while performing halftone processing by acquiring raster data composed of each corrected gradation value data, The print execution data output function that outputs the print execution data to the printing apparatus can be used to execute printing in the printing apparatus. The adjustment amount candidate data acquisition function executes the print execution data output function in the printing execution data output function. After outputting the data and executing printing, adjustment amount candidate data indicating an adjustment amount different from that at the time of printing is acquired for trial, and the gradation value data correction function is stored in the predetermined storage medium. The raster data is acquired again, the raster data is corrected according to the adjustment amount candidate data acquired for the trial, and the raster data is corrected to the print execution data. By passing it to the data generation function and outputting the generated print execution data to the print execution data output function, trial printing can be executed while reusing single raster data stored in the predetermined storage medium. Yes,
Further, a designated input reception function that receives a designated input that designates any of the above adjustment amount candidate data, and an adjustment amount that stores the adjustment amount candidate data designated by the designated input reception function as the adjustment amount data of each gradation value data. A print control program having a data storage function. 13. A raster comprising a print data acquisition function for acquiring print data described in a predetermined page description language, and a gradation value data of pixels forming each raster by interpreting the page description language of the print data. A raster data generation function that generates data, a raster data storage function that stores the generated raster data in a predetermined storage medium, and a color adjustment input that adjusts the value of the gradation value data for each color component A plurality of adjustment amount candidate data acquisition functions for acquiring a plurality of adjustment amount candidate data with different amounts, and a plurality of adjustments received by the adjustment amount candidate data acquisition function by acquiring raster data stored in the predetermined storage medium a plurality of times. A gradation value data correction function for generating a plurality of raster data by correcting each gradation value data of each raster data according to the amount candidate data, and A print execution data generation function that acquires a plurality of raster data in which the value data is corrected and performs print processing on the respective raster data while performing halftone processing on the respective raster data, and that generates print execution data. The print execution data output function that outputs the print execution data to the printing device, the designated input reception function that receives the designated input that designates one of the adjustment amount candidate data, and the adjustment designated by the designated input reception function A print control program, comprising: an adjustment amount data storage function of storing the amount candidate data as adjustment amount data of each gradation value data.