JP2013171442A - Print instruction conversion device, print control device and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the same sheet size selection result before and after replacement of a printer even when a printer corresponding to a page description language is replaced with a printer corresponding to a different page description language.SOLUTION: A UI operation section 26 prepares a conversion table in wich a paper feed tray number and a paper size of a printer 3 is made to correspond to a paper feed tray number of a printer 4, and a storage section 25 stores the prepared conversion table. A print job change section 22 changes a print job to designate a paper feed tray number after conversion corresponding to a designated paper size on the basis of a paper feed tray number and a paper size in a print job which is received by a reception section 21 and is described by a page description language A. A language conversion section 23 converts the print job which is changed in the paper feed tray number to a page description language B. Lastly, a printer driver 24 instructs the printer 4 to execute the converted print job.

Description

  The present invention relates to a print instruction conversion device, a print control device, and a program.

  Patent Document 1 discloses that a logical hopper that feeds paper during virtual printing processing and a logical stacker that discharges paper during virtual printing processing correspond to an actual physical hopper and physical stacker, respectively.

JP-A-8-87391

  It is an object of the present invention to provide the same paper size selection result before and after replacement even when a printing apparatus that interprets a page description language and performs a printing operation is replaced with a printing apparatus that interprets a different page description language and performs a printing operation. Is provided with a print instruction conversion device, a print control device, and a program.

The present invention according to claim 1 interprets the first page description language and performs the printing operation, the configuration information of the paper feed tray in the printing apparatus before replacement, and interprets the second page description language to perform the printing operation. Based on the configuration information of the paper feed tray in the printing apparatus after replacement to be performed, first paper feed tray designation information for designating the paper feed tray of the printing apparatus before replacement, the paper size, and the post-replacement Storage means for storing a conversion table in association with second paper feed tray designation information for designating a paper feed tray of the printing apparatus;
Receiving means for receiving a print instruction described in the first page description language;
Correspondence relationship between paper feed tray designation information and designated paper size information included in the print instruction accepted by the accepting means, and first paper feed tray designation information and paper size in the conversion table stored in the storage means , A paper size that matches the specified paper size is specified by a paper size specifying method based on interpretation of a print instruction in the first page description language, and a second supply corresponding to the specified paper size is specified. Changing means for obtaining paper tray designation information from the conversion table and changing the paper tray designation information in the print instruction to the obtained paper tray designation information;
Conversion means for converting a print instruction whose paper feed tray designation information has been changed by the changing means into a print instruction described in a second page description language;
Is a printing instruction conversion device.

  According to a second aspect of the present invention, in the conversion table, the paper size specifying method based on the interpretation of the print instruction in the first page description language starts from the designation information of the paper feed tray included in the print instruction. The paper size that matches the specified paper size is searched in order from the first paper feed tray designation information, and the paper size that matches the designated paper size closest to the first paper feed tray designation information is specified. The print instruction conversion device described in the above.

  According to a third aspect of the present invention, the change unit changes the print instruction so as not to designate a paper feed tray when there is no paper size that matches the designated paper size in the conversion table. Alternatively, the print instruction conversion apparatus according to 2.

The present invention according to claim 4 interprets the first page description language and performs the printing operation, the configuration information of the paper feed tray in the printing apparatus before replacement, and interprets the second page description language to perform the printing operation. Based on the configuration information of the paper feed tray in the printing apparatus after replacement to be performed, first paper feed tray designation information for designating the paper feed tray of the printing apparatus before replacement, the paper size, and the post-replacement Storage means for storing a conversion table in association with second paper feed tray designation information for designating a paper feed tray of the printing apparatus;
Receiving means for receiving a print instruction described in the first page description language;
Correspondence relationship between paper feed tray designation information and designated paper size information included in the print instruction accepted by the accepting means, and first paper feed tray designation information and paper size in the conversion table stored in the storage means , A paper size that matches the specified paper size is specified by a paper size specifying method based on interpretation of a print instruction in the first page description language, and a second supply corresponding to the specified paper size is specified. Changing means for obtaining paper tray designation information from the conversion table and changing the paper tray designation information in the print instruction to the obtained paper tray designation information;
Conversion means for converting a print instruction whose paper feed tray designation information has been changed by the changing means into a print instruction described in a second page description language;
Instruction means for instructing the printing apparatus to execute the print instruction converted by the conversion means;
Is a printing control apparatus.

The present invention according to claim 5 interprets the first page description language to perform the printing operation and the configuration information of the paper feed tray in the printing apparatus before replacement and interprets the second page description language to perform the printing operation. Based on the configuration information of the paper feed tray in the printing apparatus after replacement to be performed, first paper feed tray designation information for designating the paper feed tray of the printing apparatus before replacement, the paper size, and the post-replacement Storing a conversion table associating with second paper feed tray designation information for designating a paper feed tray of the printing apparatus;
Receiving a print instruction described in a first page description language;
With reference to the paper feed tray designation information and the designated paper size information included in the received print instruction and the correspondence relationship between the first paper feed tray designation information and the paper size in the stored conversion table, the first A sheet size that matches the specified sheet size is specified by a sheet size specifying method based on the interpretation of the print instruction in the page description language, and the second paper feed tray specification information corresponding to the specified sheet size is stored in the conversion table. Changing the paper feed tray designation information in the print instruction to the obtained paper feed tray designation information;
Converting the print instruction in which the designation information of the paper feed tray has been changed into a print instruction described in the second page description language;
Is a program for causing a computer to execute.

  According to the first aspect of the present invention, even when a printing apparatus that interprets a page description language and performs a printing operation is replaced with a printing apparatus that interprets a different page description language and performs a printing operation, before and after the replacement. It is possible to provide a print instruction conversion apparatus capable of obtaining the same paper size selection result.

  According to the second aspect of the present invention, in addition to the effect obtained by the first aspect of the invention, the combination of the paper feed tray designation information and the designated paper size in the print instruction is the first paper feed in the conversion table. It is possible to provide a print instruction conversion apparatus capable of specifying the paper size even if the correspondence between the tray designation information and the paper size is different.

  According to the third aspect of the present invention, in addition to the effect obtained by the first or second aspect of the present invention, even when a paper size that does not exist in the conversion table is specified in the print instruction, it is specified in the print instruction. It is possible to provide a print instruction conversion device that can output to paper of a paper size.

  According to the fourth aspect of the present invention, even when a printing apparatus that interprets a certain page description language and performs a printing operation is replaced with a printing apparatus that interprets a different page description language and performs a printing operation, before and after the replacement. It is possible to provide a print control apparatus capable of obtaining the same paper size selection result.

  According to the present invention of claim 5, even when a printing apparatus that interprets a certain page description language and performs a printing operation is replaced with a printing apparatus that interprets a different page description language and performs a printing operation, before and after the replacement. A program capable of obtaining the same paper size selection result can be provided.

1 is a diagram illustrating an image forming system according to an embodiment of the present invention. It is a block diagram which shows the hardware constitutions of the print server 2 in one Embodiment of this invention. It is a block diagram which shows the function structure of the print server 2 in one Embodiment of this invention. It is a figure which shows the structure of the paper feed tray of the printers 3 and 4 in one Embodiment of this invention. It is a figure explaining the difference in the interpretation of the print job in the printers 3 and 4 in one Embodiment of this invention. 4 is a flowchart of the overall operation of the print server 2 in an embodiment of the present invention. It is a figure which shows the setting screen of the conversion table which the UI operation part 26 in one Embodiment of this invention displays. 6 is a flowchart of print job change processing according to an embodiment of the present invention. It is a figure which shows the specific example of the print job change process in one Embodiment of this invention.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram showing an image forming system according to an embodiment of the present invention.

  In the image forming system of FIG. 1, a printer 3 (pre-replacement printing apparatus) that interprets a page description language A (first page description language) and performs a printing operation is operated by a user on a page description language B (second page). It is replaced with a printer 4 (printing device after replacement) that interprets the page description language) and performs a printing operation.

  The print server 2 (print control device) is connected to the print instruction device 1 and the printer 4 via TCP / IP (Transmission Control Protocol / Internet Protocol). In this embodiment, a case where the print server 2, the print instruction apparatus 1, and the printer 4 are connected via TCP / IP will be described. However, the print server 2, the print instruction apparatus 1, and the printer 4 are mutually connected. The connection method is not limited as long as it is connected to form a network.

  The print instruction apparatus 1 transmits a print job (print instruction) for outputting an image on paper to the print server 2 via TCP / IP.

  The print server 2 receives the print job from the print instruction apparatus 1, converts the received print job from the page description language A to the page description language B, and converts the print job converted to the page description language B via TCP / IP. The printer 4 is instructed.

  The printer 4 outputs to paper based on the print job instructed by the print server 2.

  Next, the hardware configuration of the print server 2 will be described in detail with reference to FIG.

  As shown in FIG. 2, the print server 2 stores data between the CPU 11, the memory 12, the storage device 13 such as a hard disk drive (HDD), the print instruction device 1, and the printers 3 and 4 via TCP / IP. A communication interface (IF) 14 that performs transmission and reception, and a user interface (UI) device 15 including a touch panel or a liquid crystal display and a keyboard are included. These components are connected to each other via a control bus 16.

  The CPU 11 controls the operation of the print server 2 by executing predetermined processing based on a control program stored in the memory 12 or the storage device 13. In the present embodiment, the CPU 11 has been described as reading and executing a control program stored in the memory 12 or the storage device 13, but the program is stored in a storage medium such as a CD-ROM and stored in the CPU 11. It is also possible to provide.

  FIG. 3 is a block diagram showing a functional configuration of the print server 2 realized by executing the control program.

  As shown in FIG. 3, the print server 2 in the present embodiment includes a print job conversion apparatus 20 and a printer driver 24. The print job conversion apparatus 20 includes a reception unit 21, a print job change unit 22, a language conversion unit 23, a storage unit 25, and a UI operation unit 26 that displays an operation screen and receives a user operation.

  The UI operation unit 26 receives a user operation, and creates a conversion table in advance based on the configuration information of the paper feed tray in the printer 3 and the configuration information of the paper feed tray in the printer 4.

  The storage unit 25 is created in advance by the UI operation unit 26 and is stored in the paper feed tray number (first paper feed tray designation information) before conversion for designating the paper feed tray of the printer 3 and the paper feed tray of the printer 3. A conversion table for associating the paper size of the current paper with the converted paper feed tray number (second paper feed tray designation information) for designating the paper feed tray of the printer 4 is stored.

  The accepting unit 21 accepts a print job described in the page description language A from the print instruction apparatus 1.

  The print job changing unit 22 includes a paper feed tray number (paper feed tray designation information) and designated paper size information included in the print job accepted by the accepting unit 21, and a conversion table stored in the storage unit 25. With reference to the correspondence relationship between the paper feed tray number and the paper size before conversion, the paper size matching the designated paper size is specified by the paper size specifying method based on the interpretation of the print job in the page description language A. Then, the print job changing unit 22 acquires the converted paper feed tray number corresponding to the specified paper size from the conversion table, and changes the paper feed tray designation information in the print job to the acquired paper feed tray number. In the print job changing unit 22 of the present embodiment, the paper size specifying method based on the interpretation of the print job in the page description language A is based on the paper feed tray number included in the print job as the starting point and the paper before conversion in the conversion table. The paper size that matches the designated paper size is searched in order from the paper tray number, and the paper size that matches the designated paper size closest to the paper feed tray number before conversion is specified.

  The print job changing unit 22 changes the print job so that the paper feed tray is not specified when there is no paper size that matches the specified paper size in the conversion table. In the present embodiment, the print job change unit 22 changes the paper feed tray number to “automatic” when there is no paper size that matches the designated paper size in the conversion table.

  The language conversion unit 23 converts the print job whose paper feed tray number has been changed by the print job change unit 22 into a print job described in the page description language B.

  The printer driver 24 instructs the printer 4 to execute a print job whose page description language has been converted by the language conversion unit 23.

  Next, the difference in the configuration of the paper feed trays of the printers 3 and 4 in this embodiment and the command interpretation of the print job in the printers 3 and 4 will be described.

  First, the configuration of the paper feed trays of the printers 3 and 4 will be described with reference to FIG.

  FIG. 4 is a diagram showing the configuration of the paper feed trays of the printers 3 and 4. As shown in FIG. 4, in the printer 3, the paper size B5 is printed on the paper feed tray number 1, the paper size A4 is printed on the paper feed tray number 2, and the paper size A4 is thick on the paper feed tray number 3. Each is stored. In the printer 4, the paper size B5 is printed in the paper tray number 1, the paper size A4 is printed in the paper tray number 2, the paper size A4 is printed in the paper tray number 3, and the paper tray number. 4, a thick sheet of paper size A4 is stored, and a printing sheet of paper size A3 is stored in paper feed tray number 5.

  Next, the difference in command interpretation of the print job in the printers 3 and 4 will be described with reference to FIG.

  As shown in FIG. 5A, in the printer 3 that has received the print job described in the page description language A, the print tray number “1” and the designated paper size “A4” are designated in the print job. In this case, the print job is executed by specifying the paper size by command interpretation such as “starting from the paper feed tray number 1” and “searching for the paper size A4 of the paper feed tray number closest to the start point”.

  On the other hand, in the printer 4 that has received the print job described in the page description language B, as shown in FIG. 5B, the paper feed tray number is “1” and the designated paper size is “A4” in the print job. In this case, the print job is executed by specifying the paper size by command interpretation such as “to paper stored in paper feed tray number 1” or “output an A4 size image”. That is, when the printer 4 receives the print job shown in FIG. 5B, since the B5 size paper is stored in the paper feed tray of the paper feed tray number 1, the printer 4 converts the A4 size image into the B5 size paper. Output to. If the paper tray number in the print job is “automatic”, the printer 4 selects a paper tray that stores paper of the same paper size as the specified paper size regardless of the paper tray number. To do.

  As described above, when the printer 3 that interprets the page description language A and performs the printing operation is replaced with the printer 4 that interprets the page description language B and performs the printing operation, the print job is simply changed from the page description language A to the page. By simply converting to the description language B, the printer 4 may not be able to obtain the same print result as the print job for the printer 3 due to the difference in command interpretation of the print job.

  Next, the overall operation of the print server 2 in this embodiment will be described with reference to FIG.

  First, the UI operation unit 26 creates a conversion table by a user operation (step S101). In the present embodiment, as shown in FIG. 7, the UI operation unit 26 displays a conversion table setting screen, and based on the configuration of the paper feed trays of the printers 3 and 4, the user operation before feeding is performed. The paper tray number, the paper size, and the converted paper feed tray number are associated with each other.

  Specifically, the UI operation unit 26 accepts a user operation, and thereby the paper feed tray number of the printer 3, that is, the paper feed tray number before conversion and the paper stored in the paper feed tray of the printer 3. Make the paper size compatible. Then, the UI operation unit 26 accepts a user operation, so that the paper feed tray number of the printer 4 storing the paper whose paper size matches the paper feed tray number and paper size before conversion, that is, A conversion table that associates the converted paper feed tray numbers is created in advance. For example, as shown in FIG. 7, the UI operation unit 26 receives a user operation and based on the configuration of the paper feed trays of the printers 3 and 4 shown in FIG. Corresponding paper tray number 1 after conversion is associated with B5. Also, as shown in FIG. 7, the UI operation unit 26 receives a user operation, and associates the paper feed tray number 2 before conversion with the paper feed tray number 2 before conversion and the paper size A4. Further, as shown in FIG. 7, the UI operation unit 26 accepts a user operation and associates the paper feed tray number 3 before conversion with the paper feed tray number 3 before conversion and the paper size A4. Then, the storage unit 25 stores the conversion table created in advance as described above.

  Next, the receiving unit 21 receives a print job transmitted from the print instruction apparatus 1. The print job changing unit 22 changes the paper feed tray number in the print job received by the receiving unit 21, and the language converting unit 23 describes the print job changed by the print job changing unit 22 in the page description language A. From what has been written, it is converted into one written in the page description language B (step S102). Details of the method for converting the print job in step S102 will be described later.

  Finally, the printer driver 24 instructs the printer 4 to execute the print job whose page description language has been converted by the language conversion unit 23 (step S103).

  Next, a method for converting a print job in step S102 will be described in detail with reference to FIG.

  First, the receiving unit 21 receives a print job transmitted from the print instruction apparatus 1 (step S201).

  Next, the print job changing unit 22 determines whether a paper feed tray is specified in the print job received by the receiving unit 21 (step S202).

  In step S202, when a paper feed tray is specified in the received print job, the paper feed tray number before conversion that matches the paper feed tray number in the print job is set as a search starting point (step S203).

  Next, the print job changing unit 22 determines whether or not a paper size is designated in the print job (step S204). If the paper size is designated, the process proceeds to step S205. If the paper size is not specified, the process proceeds to step S211 (no in step S204), and the print server 2 ends the print job conversion process.

  In step S204, when the paper size is specified in the print job (yes in step S204), the print job changing unit 22 refers to the conversion table stored in the storage unit 25 and refers to the page description language A. The paper size is specified based on the interpretation of the print job. That is, the print job changing unit 22 searches the conversion table for a paper size that matches the designated paper size of the number closest to the paper feed tray number at the search start point (step S205).

  As a result of searching for the designated paper size in step S205, if the designated paper size exists in the conversion table, the process proceeds to step S208. If the designated paper size does not exist in the conversion table, the process proceeds to step S207 (step S206). .

  In step S206, if the designated paper size does not exist in the conversion table (no in step S206), the paper feed tray number in the print job is changed to “automatic” and the process proceeds to step S211 (step S207).

  In step S206, if the designated paper size exists in the conversion table (yes in step S206), the print job changing unit 22 converts the paper feed tray number after conversion corresponding to the paper size searched in the conversion table. And determines whether or not the obtained converted paper feed tray number matches the paper feed tray number in the print job (step S208).

  In step S208, if the acquired converted paper feed tray number does not match the paper feed tray number in the print job (no in step S208), the print job changing unit 22 converts the paper feed tray number in the print job after conversion. To the paper feed tray number (step S209).

  In step S208, if the acquired converted paper feed tray number matches the paper feed tray number in the print job (yes in step S208), the print job changing unit 22 sets the paper feed tray number in the print job. The process proceeds to step S211 without changing (step S210).

  Finally, the print job changing unit 22 converts the print job described in the page description language A into a print job described in the page description language B (step S211).

  Next, a specific example realized by the above processing will be described with reference to FIG.

  For example, as shown in FIG. 9, page 1 is “paper tray number 1, paper size A4”, page 2 is “paper tray number 3, paper size A4”, and page 3 is “paper tray number 1, paper size A4”. A case where the receiving unit 21 receives a print job described in the page description language A such as “size A3” will be described.

  In page 1, since the paper feed tray number 1 is designated, the print job changing unit 22 sets the paper feed tray number 1 before conversion as a search starting point (step S203).

  Next, since the paper size A4 is designated for page 1, the print job changing unit 22 searches the paper size A4 in the conversion table in numerical order with the paper feed tray number 1 before conversion as the search starting point ( Step S205). Here, as shown in FIG. 9, since the paper size B5 is set to the paper feed tray number 1 before conversion in the conversion table, the print job changing unit 22 feeds paper with the next paper feed tray number. The paper size A4 corresponding to the tray number 2 is selected.

  Then, the print job change unit 22 acquires the converted paper feed tray number 2 corresponding to the paper size A4 selected in the conversion table. Here, since the paper feed tray number 1 specified in page 1 does not match the acquired paper feed tray number 2, the print job changing unit 22 determines that there is a change in the paper feed tray number (in step S208). no).

  Then, the print job changing unit 22 changes the print job for page 1 from the print job specifying the paper feed tray number 1 to the print job specifying the paper feed tray number 2 (step S209).

  Next, since the paper feed tray number 3 is specified for page 2, the print job changing unit 22 sets the paper feed tray number 3 before conversion as a search starting point (step S203).

  In page 2, since the paper size A4 is designated, the print job changing unit 22 searches the paper size A4 in the conversion table in numerical order from the paper feed tray number 3 before conversion as a search starting point (step S205). Here, as shown in FIG. 9, in the conversion table, since the paper size A4 is set for the paper feed tray number 3 before conversion, the print job changing unit 22 uses the paper size corresponding to the paper feed tray number 3. Select A4.

  Then, the print job changing unit 22 acquires the converted paper feed tray number 4 corresponding to the paper size A4 selected in the conversion table. Here, since the paper feed tray number 3 specified in page 2 and the acquired paper feed tray number 4 do not match, the print job changing unit 22 determines that the paper feed tray number has been changed (in step S208). no).

  Then, the print job changing unit 22 changes the print job for page 2 from the print job specifying the paper feed tray number 3 to the print job specifying the paper feed tray number 4 (step S209).

  Next, since the paper feed tray number 1 is designated on page 3, the print job changing unit 22 sets the paper feed tray number 1 before conversion as the search starting point (step S203).

  In page 3, since the paper size A3 is designated, the print job changing unit 22 searches the paper size A3 in the conversion table in the numerical order from the paper feed tray number 1 before conversion as a search starting point (step S3). S205). Here, as shown in FIG. 9, since the sheet size A3 does not exist in the conversion table (no in step S206), the print job changing unit 22 designates the print job of page 3 and the paper feed tray number 1. The print job is changed to a print job in which the paper feed tray number is automatically set (step S207).

  The language conversion unit 23 converts the print job in which the paper feed tray numbers in pages 1 to 3 are changed as described above from those described in the page description language A to those described in the page description language B. (Step S211).

  Then, the printer driver 24 instructs the printer 4 to execute the print job converted from the page description language A to the page description language B.

  Then, as shown in FIG. 9, the printer 4 prints page 1 on the print sheet of paper size A4 of the paper feed tray number 2 and page 2 on the paper feed tray number based on the print job instructed from the printer driver 24. 4 paper size A4 thick paper. Since the paper feed tray number for page 3 is automatic, the printer 4 selects the paper feed tray number in which the paper size A3 is stored and outputs it on the printing paper.

  As described above, in the present embodiment, the thick paper of the paper size A4 is stored in the paper feed tray number 3 in the printer 3, but is stored in the paper feed tray number 4 in the printer 4. However, according to the present embodiment, even in a print job similar to the case where the paper size A4 thick paper is designated for the printer 3, the printer 4 selects the paper size A4 thick paper.

  In this embodiment, the case where the print job conversion apparatus 20 is installed in the print server 2 has been described. However, the present invention similarly applies to a case where the print job conversion apparatus 20 is installed outside. Can be applied.

  In the present embodiment, the paper size specifying method has been described based on the interpretation of the print job in the page description language A. However, the present invention is limited to the interpretation of the print job in the page description language A described above. is not. The present invention can be similarly applied as long as the paper size is specified based on the interpretation of the print job described in the page description language supported by the pre-replacement printing apparatus.

DESCRIPTION OF SYMBOLS 1 Print instruction | indication apparatus 2 Print server 3, 4 Printer 11 CPU
12 Memory 13 Storage device 14 Communication IF
DESCRIPTION OF SYMBOLS 15 UI apparatus 16 Control bus 20 Print job conversion apparatus 21 Reception part 22 Print job change part 23 Language conversion part 24 Printer driver 25 Memory | storage part 26 UI operation part

Claims (5)

Configuration information of the paper feed tray in the printing apparatus before replacement that performs the printing operation by interpreting the first page description language, and paper feeding in the printing apparatus after replacement that performs the printing operation by interpreting the second page description language Designed in advance based on the tray configuration information, the first paper feed tray designation information for designating the paper feed tray of the printing apparatus before replacement, the paper size, and the paper feed tray of the printing apparatus after replacement are designated. Storage means for storing a conversion table corresponding to the second paper feed tray designation information;
Receiving means for receiving a print instruction described in the first page description language;
Correspondence relationship between paper feed tray designation information and designated paper size information included in the print instruction accepted by the accepting means, and first paper feed tray designation information and paper size in the conversion table stored in the storage means , A paper size that matches the specified paper size is specified by a paper size specifying method based on interpretation of a print instruction in the first page description language, and a second supply corresponding to the specified paper size is specified. Changing means for obtaining paper tray designation information from the conversion table and changing the paper tray designation information in the print instruction to the obtained paper tray designation information;
Conversion means for converting a print instruction whose paper feed tray designation information has been changed by the changing means into a print instruction described in a second page description language;
A printing instruction conversion apparatus.   A paper size specifying method based on interpretation of a print instruction in the first page description language is based on the first paper feed tray designation information in the conversion table, starting from paper feed tray designation information included in the print instruction. 2. The print instruction conversion apparatus according to claim 1, wherein a paper size that matches the designated paper size is searched in order, and a paper size that matches the designated paper size closest to the first paper feed tray designation information is specified.   3. The print instruction conversion apparatus according to claim 1, wherein the change unit changes the print instruction so as not to designate a paper feed tray when there is no paper size that matches the designated paper size in the conversion table. Configuration information of the paper feed tray in the printing apparatus before replacement that performs the printing operation by interpreting the first page description language, and paper feeding in the printing apparatus after replacement that performs the printing operation by interpreting the second page description language Designed in advance based on the tray configuration information, the first paper feed tray designation information for designating the paper feed tray of the printing apparatus before replacement, the paper size, and the paper feed tray of the printing apparatus after replacement are designated. Storage means for storing a conversion table corresponding to the second paper feed tray designation information;
Receiving means for receiving a print instruction described in the first page description language;
Correspondence relationship between paper feed tray designation information and designated paper size information included in the print instruction accepted by the accepting means, and first paper feed tray designation information and paper size in the conversion table stored in the storage means , A paper size that matches the specified paper size is specified by a paper size specifying method based on interpretation of a print instruction in the first page description language, and a second supply corresponding to the specified paper size is specified. Changing means for obtaining paper tray designation information from the conversion table and changing the paper tray designation information in the print instruction to the obtained paper tray designation information;
Conversion means for converting a print instruction whose paper feed tray designation information has been changed by the changing means into a print instruction described in a second page description language;
Instruction means for instructing the printing apparatus to execute the print instruction converted by the conversion means;
A printing control apparatus. Configuration information of the paper feed tray in the printing apparatus before replacement that performs the printing operation by interpreting the first page description language, and paper feeding in the printing apparatus after replacement that performs the printing operation by interpreting the second page description language Designed in advance based on the tray configuration information, the first paper feed tray designation information for designating the paper feed tray of the printing apparatus before replacement, the paper size, and the paper feed tray of the printing apparatus after replacement are designated. Storing a conversion table associating with the second paper feed tray designation information;
Receiving a print instruction described in a first page description language;
With reference to the paper feed tray designation information and the designated paper size information included in the received print instruction and the correspondence relationship between the first paper feed tray designation information and the paper size in the stored conversion table, the first A sheet size that matches the specified sheet size is specified by a sheet size specifying method based on the interpretation of the print instruction in the page description language, and the second paper feed tray specification information corresponding to the specified sheet size is stored in the conversion table. Changing the paper feed tray designation information in the print instruction to the obtained paper feed tray designation information;
Converting the print instruction in which the designation information of the paper feed tray has been changed into a print instruction described in the second page description language;
A program that causes a computer to execute.

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