JP2006004248A - Information processing apparatus, and method and program for print processing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform enlarged printing on paper larger than conventional ones for large format printing when outputting in a size that can be configured through applications. <P>SOLUTION: A printer driver manages the maximum number of pixels for a paper size that each application can handle, and determines a threshold of the number of pixels for a paper size that an application can handle from the name of the application that instructs printing. If the number of pixels for a configured paper size exceeds the threshold, the printer driver decreases resolution, and then performs enlargement processing for the lowered resolution for acquired printing drawing data. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an information processing apparatus, a print processing method, and a print processing program for generating print data for causing a large format printer to print on a large sheet from an application.

  Conventionally, when printing on large format paper (including enlarged printing) from an application to a large format printer, there has been a phenomenon in which printing cannot be performed normally and a phenomenon in which the application hangs up.

  For example, an OS having a different structure such as Microsoft Windows (registered trademark) available from Microsoft (an OS having a part that operates at 16 bits (such as Microsoft Windows (registered trademark) 95/98) and an OS that operates only at 32 bits ( (Microsoft Windows (registered trademark) NT / 2000 / XP, etc.)), some applications are created in consideration of the 16-bit portion.

  In the case of an OS having a part that operates on 16 bits, the application receives the number of horizontal and vertical pixels of the paper size within a range (32767 pixels) of short (C language data type).

  In the case of an OS that operates only on 32 bits, it is possible to receive the width and the number of vertical pixels in the range of long (C data type) (2147483647 pixels), but the application operates on both OSs. Therefore, when the number of pixels exceeding the short is received as in a large sheet, a phenomenon in which normal printing cannot be performed or a hang-up may occur.

  In addition, depending on the application, there are various cases such as when normal printing is not possible within the short range, not within the short range, and when printing is possible up to the long range. In some cases, the number of pixels that can be handled is different.

  For this reason, when printing a large sheet of paper with various applications, there are many unclear points as to whether it can be actually printed.

  To cope with this, in the conventional example, when printing an example of large paper for each application on the help screen of the printer driver, or having a function such as a print preview in the printer driver and checking whether the print preview is normal or not, printing is performed. It was recommended that. In addition, when printing on a large sheet, there is a case where an application for long length is recommended.

As a document disclosing the process of a printer driver that realizes conventional large format printing, there is Patent Document 1.
Japanese Patent Laid-Open No. 10-052960

  However, in the above prior art, the problem that the user has to find out how to print on the paper he wants to print by looking at the printing example of large paper for each application with the help of the printer driver, There was a case where there was no description of the application to be printed.

  In addition, when a function such as print preview is used in the printer driver and the print preview is confirmed and the print driver is not normal, it is difficult to know what settings (application and printer driver) should be used for printing. There was also a problem that printing could not be performed normally because the print preview was not turned on with the setting of.

  In addition, it is possible to print large paper using a long dedicated application, but users need to bother to purchase a dedicated application and to learn how to use a dedicated application that they are not familiar with. There was also a problem of becoming.

  The present invention has been made in view of the above problems, and the printer driver determines an application at the time of printing, acquires the maximum number of pixels that can be handled from an application information database stored in the driver, and Pass the number of pixels that does not exceed the maximum number of pixels to the application. An object of the present invention is to obtain a normal print result by enlarging the print output from the application through the OS with a printer driver.

  The application information (maximum number of pixels that can be printed by the application) has no information for unknown (and new) applications, so the items that can be set to the minimum number of pixels among the maximum number of pixels that can be handled by the application are It is intended to be provided in the UI.

  It is another object of the present invention to easily register information for an unknown (and new) application in an application information database.

  The present invention is an information processing apparatus including a printer driver, a determination unit that determines an application that makes a print request at the time of printing, a management unit that manages the maximum number of pixels of a paper size that can be handled by each application, and a user of the printer driver When the number of pixels of the paper size set via the interface screen exceeds the maximum number of pixels of the application managed by the management unit corresponding to the application determined by the determination unit, the maximum number of pixels is set. Virtual pixel number notifying means for passing the changed number of virtual pixels to the application to the application, and passing the virtual pixel number changed by the virtual pixel number notifying means to the application; Operation system If the drawing output to the printer driver via a Temu is passed, and having a magnifying means for enlarging from the number of virtual pixels to the number of pixels the paper size.

  Further, the management means manages the maximum number of pixels that can be handled for each version of each application.

  The printer driver further includes registration means for registering the maximum number of pixels of the paper size that can be handled for each application via the user interface screen of the printer driver.

  In addition, the virtual pixel number notifying means notifies the printer of the effective print pixel number in consideration of an enlargement error even in the case of long-sized printing that prints a plurality of pages without gaps from the paper without a gap. Features.

The present invention is also a print processing method in an information processing apparatus including a printer driver, a determination step of determining an application that makes a print request at the time of printing, and a management step of managing the maximum number of pixels of the paper size that can be handled by each application; When the number of pixels of the paper size set via the user interface screen of the printer driver exceeds the maximum number of pixels of the application managed by the management process corresponding to the application determined by the determination process, A virtual pixel number notifying step of changing the number of pixels not exceeding the maximum pixel number and passing the changed virtual pixel number to the application;
After the virtual pixel number changed in the virtual pixel number notifying step is passed to the application, and when a drawing output is passed from the application to the printer driver via the operation system, the paper size is calculated from the virtual pixel number. And an enlarging step for enlarging the number of pixels.

  The present invention is also a print processing program executed by an information processing apparatus including a printer driver, which manages a determination step for determining an application that issues a print request during printing, and the maximum number of pixels of the paper size that can be handled by each application. When the number of pixels of the paper size set through the management process and the user interface screen of the printer driver exceeds the maximum number of pixels of the application managed by the management process corresponding to the application determined in the determination process Includes a virtual pixel number notifying step of passing the changed number of virtual pixels to the number of pixels not exceeding the maximum number of pixels to the application, and a virtual pixel number changed by the virtual pixel number notifying step of the application. After passing to When the rendering output is passed from the application to the printer driver via the operation system, the information processing apparatus is caused to execute an enlargement process for enlarging the virtual pixel number to the paper size pixel number. .

  According to the present invention, when printing on a large sheet of paper, the printer driver has information on the number of pixels that can be printed in advance, and the print output from the application is enlarged by the printer driver, so that printing has not been possible so far. There is an effect that the application can print normally.

  Further, even when there is no application information, providing a setting item in the user interface of the printer driver (setting of resolution conversion: “Yes”) has an effect that the application can print normally.

  Also, when printing on a large paper size, the user can easily register for resolution conversion when there is a problem by looking at the print preview so that it can print normally from the next printing. There is an effect of becoming.

Example 1
FIG. 1 is a block diagram illustrating a schematic configuration of a printing system according to a first embodiment of the present invention.

  The printing system shown in FIG. 1 includes a host device such as a personal computer and a large-format ink jet printer. Only the application 1, the OS 2, and the printer driver 3 are illustrated in the host device. The normal printing flow is shown below.

  In the host device, the application 1 creates various documents. In order to print this document on a printer, the OS 2 and the printer driver 3 operate. The application 1 acquires paper information including the number of pixels of the designated paper size as a pre-printing process using a function prepared by the OS 2. When this function is called, the OS 2 calls a print function for initial setting prepared by the printer driver 3, acquires paper information, and returns it to the application.

  Then, the application reconstructs the document based on the acquired paper information, and performs a printing process using a printing function prepared by the OS 2. When the print function is called, the OS 2 calls a print control function (print start, print end, etc.) prepared by the printer driver 3 and a print function such as a text, graphic, or image drawing function. After these functions are called, the printer driver 3 creates print data that can be recognized by the printer, and sends the print data to the printer.

  The main part of the present invention is included in the printer driver 3. An outline of the printing process of the present invention is shown below using the arrows in FIG. In the dotted arrow (1) in FIG. 1, the application 1 calls a function of the OS 2 in order to acquire paper information and the like as pre-printing processing. In the dotted arrow (2), the OS 2 calls the printer driver 3 (print function (initial setting) module 5 of the graphic processing module 4). In the print function (initialization) module 5, the application determination unit 6 acquires the name of the application that is currently printing, and proceeds to the pixel processing unit 7. The pixel processing unit 7 calculates the number of pixels of the paper size from the designated paper size (mm) (or paper ID indicating the paper size), print quality (clean, standard, fast), and the like. With reference to the application information DB 8, if there is the acquired application name, the maximum pixel number of the paper size acquired from the application information DB 8 is compared with the calculated pixel number, and if the calculated pixel number is large, the pixel number The number and the printer resolution are set to 1/2, and the paper information not exceeding the maximum number of pixels is returned to the OS 2 (dotted arrow (3)). The OS 2 returns the paper information to the application 1. The application 1 reconstructs a document based on the returned paper information.

  In the solid arrow (5) in FIG. 1, the application 1 performs a document printing process using a printing function prepared by the OS 2. In the solid line (6), the OS 2 calls a print function such as a print control function or a drawing function prepared by the printer driver 3. The printer driver 3 passes the print function information to the print function spool module 10 through the graphic processing module 4. In the print function spool module 10, the spool processing unit 11 stores the print function information in the print function spool file 12. The process moves to the print replay module 13 at the solid line (7).

  The enlargement processing unit 14 has an interface between the pixel processing units 7 of the print function (initialization) module 5 (dotted arrow (8)), determines whether enlargement processing is necessary, and if enlargement processing is necessary. The enlargement processing unit 14 performs enlargement processing. When performing the print preview, the print preview processing unit 16 performs the replay processing of the print function in the replay processing unit 15 and displays the print preview screen on the display.

  When actual printing is performed, the replay processing unit 15 performs replay processing of the print function and calls the print function (drawing and control) module 9. In the print function (drawing, control) module 9, a print control function (print start, print end, etc.) called by replay processing and a text, graphic, image drawing function are converted into print data that can be recognized by the printer, and the printer Send print data to.

  As described above, the present invention uses the paper information (number of pixels, printer resolution, etc.) returned to the application as virtual paper information (number of virtual pixels, virtual printer resolution) and is enlarged by the printer driver 3. In the embodiment, this function will be referred to as a resolution conversion function from the following.

  The UI module 14 has a print setting screen such as a print method setting, and is a module that manages an interface with the user. In the present invention, the UI module 14 is provided with “automatic” and “on” in the setting of the resolution conversion function.

  FIG. 2 shows a setting screen for the resolution conversion function of the UI module 14. In the case of “automatic”, the application is automatically identified as described above, and resolution conversion is performed.

  In the case of “Yes”, for an unknown (and new) application, resolution conversion is performed using the minimum number of pixels of the application information DB as the maximum number of pixels of the application at the time of printing without performing application discrimination.

  FIG. 3 shows the configuration of the application information DB in the first embodiment. The application information DB is an information database for application names. Even with the same application name, the number of pixels of the maximum paper size may change depending on the version, so it has version number information. Each version number of the application has a maximum number of pixels of the maximum paper size that can be actually printed by the application.

  Also, at the end of the application name, the minimum number of pixels among the maximum number of paper pixels stored in the application information DB is stored.

  FIG. 4 shows a flowchart for returning paper information to the application in the first embodiment. The application 1 creates various documents. In order to print this document on a printer, the OS 2 and the printer driver 3 operate. The application 1 acquires paper information including the number of pixels of the designated paper size as a pre-printing process using a function prepared by the OS 2. FIG. 4 shows a flowchart after this function is called.

  In S1, the printer driver 3 stores the print function information (paper ID or paper size (mm) and print quality (fast, standard, beautiful, etc.)) of the OS, and proceeds to S2.

  In S2, the vertical and horizontal pixel numbers of the paper size are calculated from the stored paper information, and the process proceeds to S3. Here, it is assumed that the paper information uses only the input paper information for creating print data by the application, and does not use the output paper information set for performing standard scaling.

  In S <b> 3, it is determined whether the resolution conversion setting of the UI module 14 is “automatic”. If it is automatic, the process proceeds to S4. If it is not automatic, “Yes” is set and the process proceeds to S9. In S4, the application name and version information currently printed are acquired, and the process proceeds to S5.

  In S5, the application information DB 8 is searched to check whether an application exists, and the process proceeds to S6. In S6, it is determined whether or not an application exists. If an application exists, the process proceeds to S7, and if not, the process proceeds to S10.

  In S7, the version information registered in the application information DB 8 is searched for the version information of the acquired application. If there is a version, the vertical and horizontal pixel numbers of the maximum sheet size of the version information are acquired. If there is no version information, the vertical and horizontal pixel numbers of the maximum paper size that is the minimum number of pixels are acquired from the version information, and the process proceeds to S8.

  In S8, the number of pixels calculated in S2 is set so that the number of pixels and the printer resolution (according to the print quality) are reduced to 1/1 / (1 / N) so that the number of pixels of the maximum paper size is not exceeded. Set to the return value of the function and exit.

  In this embodiment, it is set to 1 / integer, but it is not always necessary to reduce it to 1 / integer. As an advantage of reducing to an integer, an error is reduced when the printer driver 3 is enlarged. Also, instead of a fraction of an integer, the maximum paper size may be multiplied by the number of pixels multiplied by the number of pixels calculated. Depending on the application, the resolution of the image may be lowered to the acquired printer resolution and passed, so as an advantage of this method, the image passed from the application may have a higher resolution. In the case of an image-type application, it is possible to use an embodiment in which the number is not reduced to an integer.

  Also, when printing banners (a method for printing multiple pages without gaps to remove paper margins for long printing), even with standard paper, the number of effective print pixels is taken into account by taking into account errors during enlargement. It is also possible to print without a gap by notifying the side.

  If the resolution conversion setting of the UI module 14 is set to “Yes” in S9, the minimum paper number of pixels in the application information DB is set to the maximum paper size, and the process proceeds to S8.

  In S10, it is determined whether or not the number of pixels calculated in S2 exceeds short (32767 pixels). If so, the process proceeds to S11, and if not, the process proceeds to S12. In S11, the number of pixels of the maximum paper size is set to short (32767 pixels), and the process proceeds to S8.

  In addition, since a general application cannot be printed in many cases when it exceeds the short, in this embodiment, if the application is not registered in the application information DB, the short is limited. When the application information DB has a lot of information or when the limit of the short is reduced even in the general application in the future, the process may be directly shifted to the process of S11 without being limited by the short. In addition, in the resolution conversion setting, a setting “NO” is added, and if “NO”, normal printing may be performed without resolution conversion.

  In S12, the number of pixels calculated in S2 and the printer resolution (according to the print quality) are set as they are to the return value of the OS2 function, and the process ends. The application reconstructs the document based on the paper information acquired from the return value of OS2, and performs a printing process using a printing function prepared by OS2.

  FIG. 5 is a flowchart illustrating the operation of the printer driver during printing in the first embodiment.

  The application 1 performs a document printing process using a printing function prepared by the OS 2. The OS 2 calls a print function such as a print control function or a drawing function prepared by the printer driver 3. FIG. 5 shows a flowchart after this function is called.

  In S <b> 1, the printer driver 3 passes the print function information to the print function spool module 10 through the graphic processing module 4. In S <b> 2, in the print function spool module 10, the spool processing unit 11 stores the print function information in the print function spool file 12.

  In S <b> 3, the enlargement processing unit 14 has an interface between the pixel processing units 7 of the print function (initialization) module 5, and acquires enlargement processing information (1 / N).

  In S4, it is determined whether or not the print preview setting of the UI module 14 is ON. If it is ON, the process proceeds to S5. If it is not ON, the process proceeds to S7.

  In S5, the print preview processing unit 16 performs replay processing of the N times print function based on the enlargement information acquired in S3, displays a print preview screen on the display, and proceeds to S6. In S6, it is determined whether or not printing is performed after the print preview. If printing is to be performed, the process proceeds to S7. If not, the process proceeds to S9.

  In S7, when actual printing is performed, the replay processing unit 15 performs replay processing of the N times printing function based on the enlargement information acquired in S3, and calls the printing function (drawing, control) module 9, The process proceeds to S8.

  In S8, the print function (drawing, control) module 9 converts print control functions (print start, print end, etc.) called by replay processing and text, graphic, image drawing functions into print data that can be recognized by the printer. The print data is sent to the printer, and the process is terminated. In S9, the print job is deleted and the process ends.

(Example 2)
In the second embodiment, as in the first embodiment, an application that cannot be printed normally can be registered on the print preview screen so that the user does not need to set resolution conversion (automatically).

  In general, applications that have restrictions on short (32767 pixels), etc., when the limit is exceeded, the phenomenon that image data is not drawn at all from the place where the limit is exceeded, or the place where graphic data such as lines and rectangles exceeds the limit This causes a phenomenon such as drawing in a completely different place instead of drawing on the screen. Since this phenomenon can be confirmed even during print preview, if there is a problem when the user looks at the print preview, the current application can be registered in the application information DB.

  FIG. 6 is a block diagram illustrating a schematic configuration of a printing system according to the second embodiment of the present invention.

  The block diagram 6 of the second embodiment is almost the same as the block diagram 1 of the first embodiment. The difference between FIG. 1 and FIG. 6 is that the print preview processing unit 16 acquires the application name and version from the application determination unit 6 (dotted arrow 9), and the portion registered in the application information DB (dotted arrow 10). .

  In the second embodiment, there is no resolution conversion setting screen of the UI module 14 as shown in FIG. 2, but a registration screen for executing the print preview screen to the resolution conversion setting can be started as shown in FIG. In FIG. 7, when the preview screen intended by the user cannot be obtained with a large paper size (more than the minimum number of pixels in the application information DB), the application information is registered in the application information DB by pressing the registration button. Can do.

  The application information DB used in the second embodiment is the same as that shown in FIG.

  FIG. 8 shows a flowchart for returning paper information to the application in the second embodiment. Although it is almost the same as in FIG. 4, the resolution conversion setting is fixed to “automatic”, so it is not necessary to determine “Yes”.

  In S1, the printer driver 3 stores the print function information (paper ID or paper size (mm) and print quality (fast, standard, beautiful, etc.)) of the OS, and proceeds to S2. In S2, the vertical and horizontal pixel numbers of the paper size are calculated from the stored paper information, and the process proceeds to S3.

  In S3, the application name and version information currently printed are acquired, and the process proceeds to S4. In S4, the application information DB 8 is searched to check whether an application exists, and the process proceeds to S5.

  In S5, it is determined whether or not an application exists. If an application exists, the process proceeds to S6, and if not, the process proceeds to S8.

  In S6, the version information registered in the application information DB 8 is searched for the version information of the acquired application. If there is a version, the vertical and horizontal pixel numbers of the maximum paper size of the version information are acquired. If there is no version information, the vertical and horizontal pixel numbers of the maximum paper size that is the minimum number of pixels are acquired from the version information, and the process proceeds to S7.

  In S7, the number of pixels calculated in S2 is set so that the number of pixels and the printer resolution (according to the print quality) are reduced to a fraction of 1 (1 / N) so that the number of pixels of the maximum paper size is not exceeded. Set to the return value of the function and exit.

  In S8, it is determined whether or not the number of pixels calculated in S2 exceeds short (32767 pixels). If so, the process proceeds to S9, and if not, the process proceeds to S10.

  In S9, the number of pixels of the maximum paper size is set to short (32767 pixels), and the process proceeds to S7.

  In S10, the number of pixels calculated in S2 and the printer resolution (according to the printing quality) are set as they are to the return value of the OS2 function, and the process ends.

  FIG. 9 is a flowchart illustrating the operation of the printer driver during printing in the second embodiment. Although it is almost the same as that of FIG. 5, it is possible to register in the application information DB after performing a print preview.

  In S <b> 1, the printer driver 3 passes the print function information to the print function spool module 10 through the graphic processing module 4.

  In S <b> 2, in the print function spool module 10, the spool processing unit 11 stores the print function information in the print function spool file 12.

  In S <b> 3, the enlargement processing unit 14 has an interface between the pixel processing units 7 of the print function (initialization) module 5, and acquires enlargement processing information (1 / N).

  In S4, it is determined whether or not the print preview setting of the UI module 14 is ON. If it is ON, the process proceeds to S5. If it is not ON, the process proceeds to S7.

  In S5, the print preview processing unit 16 performs replay processing of the N times print function based on the enlargement information acquired in S3, displays a print preview screen on the display, and proceeds to S6.

  In S6, when the number of pixels of the paper size is large (more than the minimum number of pixels in the application information DB), registration for resolution conversion is enabled. If the user determines that there is a problem in the print preview, the registration screen for the resolution conversion setting shown in FIG. 7 is displayed, and the user is asked whether registration is to be performed. If registration is to be performed, the process proceeds to S10. If not, the process proceeds to S7.

  In S7, it is determined whether or not to print after the print preview. If printing is to be performed, the process proceeds to S8, and if not, the process proceeds to S12.

  In S8, when the actual printing is performed, the replay processing unit 15 performs the replay processing of the N times printing function based on the enlargement information acquired in S3, and calls the printing function (drawing, control) module 9. The process proceeds to S9.

  In S9, the print function (drawing, control) module 9 converts print control functions (print start, print end, etc.) called by replay processing and text, graphic, and image drawing functions into print data that can be recognized by the printer. The print data is sent to the printer, and the process is terminated.

  In S10, the print preview processing unit 16 has an interface between the application determination unit 6 of the print function (initialization) module 5, acquires the application name and version number, and proceeds to S11.

  In S11, the application name acquired in S10, the version number, and the minimum number of pixels in the DB are registered in the application information DB, and the process proceeds to S12.

  In S12, the print job is deleted and the process ends.

1 is a block diagram illustrating a schematic configuration of a printing system in Embodiment 1 of the present invention. FIG. FIG. 5 shows a setting screen for the resolution conversion function of the UI module 14 in Embodiment 1 of the present invention. FIG. In Example 1 of this invention, the structure of application information DB is shown. 5 is a flowchart for returning paper information to an application in Embodiment 1 of the present invention. 5 is a flowchart illustrating the operation of the printer driver 3 during printing in the first embodiment of the present invention. In Example 2 of this invention, it is a block diagram which shows schematic structure of a printing system. In the second embodiment of the present invention, a registration screen for the resolution conversion function at the time of print preview is shown. In the second embodiment of the present invention, a flowchart for returning paper information to an application is shown. 9 is a flowchart illustrating the operation of the printer driver 3 during printing in the second embodiment of the present invention.

Explanation of symbols

1 Application 2 OS
3 Printer Driver 4 Graphics Processing Module 5 Print Function (Initialization) Module 6 Application Discrimination Unit 7 Pixel Processing Unit 8 Application Information DB
DESCRIPTION OF SYMBOLS 9 Print function (drawing, control) module 10 Print function spool module 11 Spool process part 12 Print function spool file 13 Print function replay module 14 Enlargement process part 15 Replay process part 16 Print preview process part 17 UI module

Claims (6)

An information processing apparatus comprising a printer driver,
A discriminating means for discriminating an application that makes a print request at the time of printing;
A management means for managing the maximum number of pixels of the paper size that can be handled by each application;
If the number of pixels of the paper size set via the user interface screen of the printer driver exceeds the maximum number of pixels of the application managed by the management unit corresponding to the application determined by the determination unit, A virtual pixel number notifying means for changing the number of pixels not to exceed the maximum number of pixels and passing the changed virtual pixel number to the application;
When the virtual pixel number changed by the virtual pixel number notifying unit is passed to the application and then a rendering output is passed from the application to the printer driver via the operation system, the paper size is calculated from the virtual pixel number. Enlargement means to enlarge to the number of pixels,
An information processing apparatus comprising:   The information processing apparatus according to claim 1, wherein the management unit manages the maximum number of pixels that can be handled by each application version.   The information processing apparatus according to claim 1, further comprising a registration unit configured to register the maximum number of pixels of a paper size that can be handled for each application via a user interface screen of the printer driver.   The virtual pixel number notifying means notifies the printer side of the effective print pixel number in consideration of an enlargement error even in the case of long-sized printing in which a plurality of pages are printed without gaps from a paper without a gap. The information processing apparatus according to any one of claims 1 to 3. A print processing method in an information processing apparatus including a printer driver,
A discriminating step for discriminating an application that makes a print request at the time of printing;
A management process to manage the maximum number of pixels of paper size that each application can handle,
If the number of pixels of the paper size set via the user interface screen of the printer driver exceeds the maximum number of pixels of the application managed by the management process corresponding to the application determined in the determination process, A virtual pixel number notifying step of changing the number of pixels not exceeding the maximum number of pixels and passing the changed number of virtual pixels to the application;
After the virtual pixel number changed in the virtual pixel number notifying step is passed to the application, and when a drawing output is passed from the application to the printer driver via the operation system, the paper size is calculated from the virtual pixel number. An expansion process that expands to the number of pixels
A printing processing method comprising: A print processing program executed by an information processing apparatus including a printer driver,
A discriminating step for discriminating an application that makes a print request at the time of printing;
A management process to manage the maximum number of pixels of paper size that each application can handle,
If the number of pixels of the paper size set via the user interface screen of the printer driver exceeds the maximum number of pixels of the application managed by the management process corresponding to the application determined in the determination process, A virtual pixel number notifying step of changing the number of pixels not exceeding the maximum number of pixels and passing the changed number of virtual pixels to the application;
After the virtual pixel number changed in the virtual pixel number notifying step is passed to the application, and when a drawing output is passed from the application to the printer driver via the operation system, the paper size is calculated from the virtual pixel number. An expansion process that expands to the number of pixels
Is executed by the information processing apparatus. A computer-readable print processing program.

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