JP6147784B2 - Print data storage device - Google Patents

Description

  The present invention relates to a print data storage device suitable for storing print data.

  When a document is printed in an image forming apparatus such as a multifunction peripheral (MFP) such as a printer, a multi-function printer, or a multifunction peripheral, a typographical error or a missing entry may be noticed after printing. In this case, after the document data is corrected, printing is performed again by the image forming apparatus. In this case, if the document data is for one page, it is necessary to reprint the one page. Even if the document data is for one page, if the number of printed sheets is large, it is necessary to reprint the number of printed sheets. In addition, if the document data is for multiple pages, correcting the corresponding part may affect other pages (such as shifting the character position). In this case, printing after the corrected page will be performed. Repair is required. In any case, there is a case where the paper is wasted by reprinting the corrected document.

  As a method for correcting such document data, in Patent Document 1, a proofed proof is scanned by an image scanner, correction instruction data is acquired, differential processing is performed with RIP expanded data, and differential data is extracted. The print data before proofreading and the difference data are layered, the correction target layer is virtually divided into a grid, multiple blocks are generated, layered data and area division data are obtained, and then the difference layer is created. A print data editing apparatus has been proposed in which print data is corrected in accordance with the described correction instructions.

JP 2006-065486

  In the above-described print data editing apparatus of Patent Document 1, when the print data is corrected, the correction instruction described by the corrector is converted into data, and the print data of the original document and the correction instruction data are compared in layers. As a result, it is easy to check the correction part, and the correction work is simplified. However, there is a problem that it is necessary to convert the correction instruction written by the corrector into data, and an extra work of scanning the correction instruction is required.

  The present invention has been made in view of such a situation, and an object thereof is to provide a print data storage apparatus capable of solving the above-described problems.

The print data storage device of the present invention includes a communication management unit that receives a data search request including print data, and a data management that manages correction history data by storing the print data in a storage unit in association with user information as storage data And a correction candidate creation unit, and when the communication management unit receives the data search request, as a modification candidate list creation process, the data management unit receives new print data received by the communication management unit. Is compared with the correction target of the correction history data , a character string similar to the character string that matches both is extracted, and if there is no correction target similar to the new print data, notification of not applicable, The correction candidate creation unit registers the correction target corresponding to the extracted character string and the correction candidate corresponding to the correction target in the correction candidate list, and the data management unit Sending the modified candidate list, after the creation processing of the corrected candidate list, as correction history storage processing, the data comparison unit, comparing the new print data and the stored data, the data management unit, Based on the result of the comparison, the character string extracted from the accumulated data is a character string before correction, the character string extracted from the new print data is a character string after correction, and the correction history data associated with the user information Is stored in the storage unit, the correction target is the pre-correction character string of the correction history data, and the correction candidate is the post-correction character string of the correction history data.
In addition, the data comparison unit compares the entire text of the print data and the accumulated data, and extracts a difference between the print data and the accumulated data when the matching ratio of the entire document is equal to or higher than a certain level.
The data management unit is characterized in that, based on the difference extraction result, the pre-correction character string is a correction target, the post-correction character string is a correction candidate, and is stored as correction history data.
The data management unit manages print history data including the user information, a file format of the print data, and a file name of the print data, and the data comparison unit stores the accumulated data to be compared with the print data. The user information, the file format, and the file name associated with the print data are narrowed down.
Further, the communication management unit receives a correction candidate selected from the transmitted correction candidate list, and the data management unit receives the correction candidate selected when the selected correction candidate is received. Is positioned higher in the correction candidate list.
In the print data storage device of the present invention, when the data management unit associates print data with user information and stores it as storage data in the storage unit, and the data comparison unit compares the storage data with new print data. Based on the result of comparison by the data management unit, the character string extracted from the stored data is made the pre-correction character string, the character string extracted from the new print data is made the post-correction character string, and is managed in association with the user information. Is done.

  According to the print data storage device of the present invention, the character string extracted from the stored data is made the character string extracted from the stored data based on the result of the comparison by the data comparison unit, and the character string extracted from the new print data. Is a character string after correction and is managed in association with user information, so correction candidates for correction targets related to print data correction work are automatically stored without the extra work of scanning correction instructions. can do.

1 is a diagram illustrating a print data storage system to which a print data storage device according to an embodiment of the present invention is applied. FIG. 2 is a diagram for explaining a configuration of main parts of the MFP and the data management server in FIG. 1. It is a figure which shows the correction candidate list produced by the correction candidate production part of FIG. FIG. 2 is a diagram for explaining print history data for each user stored on the data management server side of FIG. 1. It is a figure for demonstrating the correction log | history data for every user memorize | stored in the data management server side of FIG. 3 is a flowchart for explaining processing on the MFP side in FIG. 1. 3 is a flowchart for explaining correction history accumulation processing on the data management server side in FIG. 1. 7 is a flowchart for explaining a modification candidate list creation process on the data management server side in FIG. 1;

  Hereinafter, an embodiment of a print data storage apparatus according to the present invention will be described with reference to FIGS. FIG. 1 shows a print data storage system to which a print data storage device of the present invention is applied. As shown in FIG. 1, the print data storage system includes an MFP (Multifunction Peripheral) 100, a data management server 200 that is a print data storage system, and a client terminal 300. MFP 100, data management server 200, and client terminal 300 are connected via network 10.

  As will be described in detail later, when a print job including a print request and print data is transmitted from the client terminal 300 to the MFP 100, a data search request including print data is issued from the MFP 100 to the data management server 200. Here, the data search request is issued when the data management server 200 is requested to store the correction history of the print data and transmit a correction candidate list 230 described later.

  The data management server 200 compares the print data with the stored data, extracts the difference between these data, sets the extracted character string of the stored data as the pre-correction character string, and converts the character string of the print data into the corrected character string It is managed as a correction history data 225 to be described later in association with user information 220a to be described later. In addition, the data management server 200 compares the print data with the correction history data 225 and transmits a correction candidate list 230 (described later) related to correction to the MFP 100. A correction candidate list 230 described later from the data management server 200 is displayed on the touch panel on the MFP 100 side, and the character string correction candidate 225c selected from the correction candidate list 230 by the user is reflected in the print data and printed. .

  Next, with reference to FIG. 2, the configuration of the main parts of the MFP 100 and the data management server 200 will be described. First, the MFP 100 includes a control unit 101, an operation unit 110, a display unit 111, a scanner unit 112, a printer unit 113, a FAX unit 114, and an I / F (interface) 115. The control unit 101 controls the overall operation of the MFP 100 based on a program in a ROM (not shown). The communication management unit 102, the data management unit 103, the display management unit 104, the operation reception unit 105, the correction reflection unit 106, An image forming unit 107 and a memory 108 are provided.

  The communication management unit 102 receives a print job including a print request and print data from the client terminal 300 via the I / F 115. The data management unit 103 temporarily stores the print data received by the communication management unit 102 in the memory 108. Further, the data management unit 103 issues a data search request to the data management server 200 and transmits the print data received by the communication management unit 102 via the I / F 115. The data search request includes user information (such as a user ID) that has transmitted print data from the client terminal 300, a file format, and a file name.

  Further, the data management unit 103 transmits a correction candidate 225c described later selected by the user to the data management server 200 via the I / F 115. As a result, the data management server 200 can grasp the selection frequency of the correction candidates 225c. In addition, the data management unit 103 transmits the corrected print data in which the correction candidate 225 c is reflected by the correction reflection unit 106 to the client terminal 300 that has transmitted the print data via the I / F 115. As a result, the client terminal 300 can store the corrected print data by overwriting the uncorrected print data.

  The display management unit 104 causes the display unit 111 to have a correction candidate list 230 (described later) transmitted from the data management server 200. Further, the display management unit 104 causes the display unit 111 to display the contents of file designation for performing printing or the like. The operation reception unit 105 receives a file designation operation for performing printing or the like by the operation unit 110. Further, the operation accepting unit 105 accepts selection of a correction candidate 225c from a later-described correction candidate list 230 by the operation unit 110.

  The correction reflection unit 106 reads the print data stored in the memory 108 and reflects the selected correction candidate 225c from the correction candidate list 230 described later received by the operation reception unit 105. This automatically corrects the print data before starting printing.

  The image forming unit 107 performs image processing (rasterization) on the print data corrected by the correction reflection unit 106. The memory 108 stores print data from the client terminal 300 and the like.

  The operation unit 110 is constituted by a touch panel, for example. In a print request to the MFP 100, a login process is performed in order to hold the user's usage authority. In the login process, the operation unit 110 receives an input such as a user ID. When the login process is completed, print data file designation and the like can be performed. The login process can also be performed by accessing from a portable terminal (not shown).

  The display unit 111 displays a file specification of print data to be printed, a message for guiding login and the like, a file list of print data that can be printed by the user, and the like. Further, as described above, the display unit 111 displays a later-described correction candidate list 230 transmitted from the data management server 200.

  The scanner unit 112 inputs image data of a document read by an image sensor (not shown) to the control unit 101. That is, the scanner unit 112 converts an image signal of an original from an image sensor (not shown) into digital image data, and sequentially inputs the digital image data to the control unit 101.

  The printer unit 113 prints an image on a sheet based on the image data output from the control unit 101.

  The FAX unit 114 transmits the image data output from the control unit 101 to the counterpart facsimile via the telephone line, and receives the image data from the counterpart facsimile and inputs the image data to the control unit 101.

  The I / F 115 is connected to the network 10 and enables data transmission / reception among the data management server 200, the client terminal 300, and a portable terminal (not shown).

  Note that in a copy function job, image data is input from the scanner unit 112 to the memory 108, and image data is output from the memory 108 to the printer unit 113. In the print function job, the image data rasterized by the image forming unit 107 is output to the printer unit 113. In the job of the scanner function, image data is input from the scanner unit 112 to the memory 108, and image data is output from the memory 108 to the I / F 115.

  In the job of the fax transmission function, image data is input from the scanner unit 112 (or I / F 115) to the memory 108, and image data is output from the memory 108 to the FAX unit 114. In a fax reception function job, image data is input from the FAX unit 114 to the memory 108, and image data is output from the memory 108 to the printer unit 113.

  On the other hand, the data management server 200 that is a print data storage device includes a control unit 201 and an I / F (interface) 210. The control unit 201 controls the overall operation of the data management server 200 based on a program in a ROM (not shown). The communication management unit 202, the data management unit 203, the data comparison unit 204, the correction candidate creation unit 205, 206.

  Communication management unit 202 receives a data search request from MFP 100 and print data via I / F 210. Note that, as described above, the data search request includes user information (such as a user ID) that has transmitted print data from the client terminal 300, a file format, and a file name. In addition, the communication management unit 202 receives the correction candidate 225c of the correction candidate list 230 selected by the user on the MFP 100 side.

  The data management unit 203 stores the print data received by the communication management unit 202 in the memory 206. In addition, the data management unit 203 sets the character string of the accumulated data as the pre-correction character string and the character string of the print data as the post-correction character string from the difference extraction result by the data comparison unit 204, and associates them with the user information 220a described later. And stored in the memory 206 as correction history data 225 described later. Further, the data management unit 203 transmits the correction candidate list 230 created by the correction candidate creation unit 205 to the MFP 100 via the I / F 210. In addition, the data management unit 203 reflects the correction candidate 225 c in the correction candidate list 230 received by the communication management unit 202 in the correction history data 225 in the memory 206. In this case, for example, the correction candidate 225c that is frequently selected by the user on the MFP 100 side is reflected so as to be positioned at the top of the list.

  Although details will be described later, the data comparison unit 204 compares the print data received by the communication management unit 202 with the accumulated data that is the past print data already stored in the memory 206, and the matching rate of the entire document. Is greater than a certain value (for example, 80% or more), the difference between the print data and accumulated data is extracted. Note that the matching rate of the entire document is not limited to 80% or more, and can be appropriately changed.

  The correction candidate creation unit 205 creates a correction candidate list 230 as shown in FIG. 3 described later corresponding to the character string extracted by the data comparison unit 204. The created correction candidate list 230 is transmitted to the MFP 100 via the I / F 210 by the communication management unit 202. The memory 206 stores printing history data 220 for each user as shown in FIG. 4 and correction history data 225 for each user as shown in FIG.

  Next, the print history data 220 for each user stored in the memory 206 will be described with reference to FIG. The print history data 220 shown in the figure shows data corresponding to the user A, for example. The print history data 220 manages the history of print data printed by the user A in the past. The print history data 220 includes user information 220a, a file format 220b, and a file name 220c. The file format 220b and the file name 220c are associated with the user information 220a.

  Next, the correction history data 225 for each user stored in the memory 206 will be described with reference to FIG. The correction history data 225 shown in the figure manages the correction history for the contents of the correction made to the print data printed by the user A in the past. The correction history data 225 includes user information 225a, a correction target 225b, a correction candidate 220c, and the like. The correction target 225b, the correction candidate 225c, and the like are associated with the user information 225a.

  The user information 220a has contents indicating a user name and a user identifier (0012345). The file format 220b indicates a print data storage format such as txt. The file name 220c is given to the print data file such as the files ac. The correction target 225b is the character string before correction described above. The correction candidate 225c is the corrected character string described above. Note that print data of a file such as the file a-1 or the file aa similar to the file name of the file a is managed separately in the print history data 220, for example.

Next, processing on the MFP 100 side will be described with reference to FIG.
(Step S101)
First, the control unit 101 determines whether the communication management unit 102 has received a print request (including print data) from the client terminal 300 via the I / F 115. If a print request (including print data) has not been received (step S101: No), reception is awaited. If it is determined that a print request (including print data) has been received (step S101: Yes), the process proceeds to step S102.

(Step S102)
The data management unit 103 temporarily stores the print data received by the communication management unit 102 in the memory 108. Further, the data management unit 103 issues a data search request to the data management server 200. Here, as described above, the data search request is issued when the data management server 200 is requested to store the correction history of the print data and transmit the correction candidate list 230 described later. At this time, a data search request including print data received by the communication management unit 102 is transmitted to the data management server 200 via the I / F 115. The data search request includes user information (such as a user identifier) of a user who has transmitted print data from the client terminal 300, a file format, and a file name.

(Step S103)
The control unit 101 determines whether the communication management unit 102 has received the correction candidate list 230 from the data management server 200 via the I / F 115. If the correction candidate list 230 has not been received (step S103: No), the process waits for reception. If it is determined that the correction candidate list 230 has been made (step S103: Yes), the process proceeds to step S104. In step S103, if the correction candidate list 230 is not transmitted from the data management server 200 and, for example, a notification of no match is received from the data management server 200, the MFP 100 immediately starts printing the print data, and the subsequent processing is performed. You may end.

(Step S104)
The display management unit 104 causes the display unit 111 to receive the correction candidate list 230 received by the communication management unit 102.

(Step S105)
The control unit 101 determines whether or not the operation receiving unit 105 has received selection of the correction candidate 225c from the correction candidate list 230 by an operation by the operation unit 110. If selection of the correction candidate 225c is not received (step S105: No), the selection of the correction candidate 225c is awaited. If it is determined that the selection of the correction candidate 225c has been received (step S105: Yes), the process proceeds to step S106.

(Step S106)
The correction reflection unit 106 reads the print data stored in the memory 108 and reflects the correction candidate 225c selected from the correction candidate list 230 by the user. This automatically corrects the print data before starting printing.

(Step S107)
The image forming unit 107 performs image processing (rasterization) on the print data corrected by the correction reflection unit 106. The image-processed (rasterized) data is output to the printer unit 113, and an image is printed on paper.

(Step S108)
The data management unit 103 transmits the correction candidate 225c selected by the user to the data management server 200 via the I / F 115.

(Step S109)
The data management unit 103 transmits the corrected print data in which the correction candidate 225 c is reflected by the correction reflection unit 106 to the client terminal 300 that has transmitted the print data via the I / F 115. Then, the process ends.

  Next, the correction history accumulation process on the data management server 200 side will be described with reference to FIG.

(Step S201)
Control unit 201 determines whether communication management unit 202 has received a data search request (including print data) from MFP 100 via I / F 210. If a data search request has not been received (step S201: No), reception is awaited. If it is determined that the data search request has been received (step S201: Yes), the data management unit 203 stores the print data received by the communication management unit 202 in the memory 206. Then, the process proceeds to step S202.

(Step S202)
The data comparison unit 204 narrows down the accumulated data of the print history data 220 in order to compare the print data with the accumulated data. When narrowing the stored data, it is performed based on the user information 220a, the file format 220b, and the file name 220c. Specifically, the data comparison unit 204 extracts stored data having the same user information 220a and file format 220b as the print data. Next, the data comparison unit 204 extracts accumulated data having the same file name 220c as the print data. At this time, if there is no accumulated data with the same file name 220c, the data comparison unit 204 searches for a file similar to the file a, such as the file a-1 or the file aa.

(Step S203)
When the accumulated data can be narrowed down (step S203: Yes), the process proceeds to step S205. If the accumulated data cannot be narrowed down (step S203: No), the process proceeds to step S204.

(Step S204)
If the accumulated data cannot be narrowed down, there is a high possibility that the print data is new, so the data management unit 203 newly stores the print data as accumulated data. In this case, the print data is stored in association with the user information 220a.

(Step S205)
The data comparison unit 204 compares the entire text of the print data and accumulated data, and calculates the matching rate of the entire document.

(Step S206)
The data comparison unit 204 determines whether or not the match rate is a certain level or higher (for example, 80% or higher). If the match rate is equal to or higher than a certain level (for example, 80% or higher) (step S206: Yes), the process proceeds to step S207. If the match rate is not a certain value (for example, 80% or more) (step S206: No), the process proceeds to step S204. In step S206, if the match rate is not equal to or higher than a certain level (for example, 80% or higher) (step S206: No), the data management server 200 may notify the MFP 100 that there is no match.

(Step S207)
The data comparison unit 204 extracts a difference between print data and accumulated data.

(Step S208)
When the difference is extracted, the data management unit 203 sets the character string extracted from the accumulated data as a pre-correction character string, and sets the character string extracted from the print data as a corrected character string. Then, as shown in FIG. 5, the data management unit 203 stores the pre-correction character string as the correction target 225b, the post-correction character string as the correction candidate 225c, and stores it as linked correction history data 225 in the user information 220a. In this way, every time a data search request (including print data) is received from the MFP 100, the print data and the stored data are compared, and when a difference is extracted, the correction target 225b and the correction candidate 225c are corrected history data. 225 is stored and managed. Each time a data search request (including print data) is received from the MFP 100, the print data from the MFP 100 is stored as accumulated data.

  Next, a process for creating the correction candidate list 230 on the data management server 200 side will be described with reference to FIG. Note that the following processing may be performed in parallel with the processing in FIG. 7, or may be performed before or after the processing in FIG.

(Step S211)
Control unit 201 determines whether communication management unit 202 has received a data search request (including print data) from MFP 100 via I / F 210. If no data search request has been received (step S211: No), reception is awaited. If it is determined that the data search request has been received (step S211: Yes), the process proceeds to step S212.

(Step S212)
The data management unit 203 stores the print data received by the communication management unit 202 in the memory 206. The data comparison unit 204 compares the print data received by the communication management unit 202 with the correction history data 225 already stored in the memory 206. Note that when comparing the print data with the accumulated data, the accumulated data of the correction history data 220 is narrowed down based on the user information 220a. Specifically, the data management unit 203 extracts the correction history data 225 having the same user information 220a as the print data. If there is no correction target 225b similar to the print data received by the communication management unit 202, the data management server 200 may notify the MFP 100 that there is no match, and the subsequent processing may be terminated.

(Step S213)
The data management unit 203 extracts character strings that match or are similar to each other from the print data and the correction history data 225 according to the comparison result.

(Step S214)
The correction candidate creation unit 205 creates the correction candidate list 230 shown in FIG. 3 corresponding to the character string extracted by the data comparison unit 204. Here, the correction candidate creation unit 205 refers to the correction history data 225 described above, and calculates a correction target 225b corresponding to the character string extracted by the data comparison unit 204 and a correction candidate 225c corresponding to the correction target 225b. Register in the correction candidate list 230.

(Step S215)
Data management unit 203 transmits correction candidate list 230 created by correction candidate creation unit 205 to MFP 100 via I / F 210.

(Step S216)
The control unit 201 determines whether the communication management unit 202 has received the correction candidate 225c selected from the MFP 100 via the I / F 210. This determination is made after the correction candidate list 230 is transmitted to the MFP 100 and the correction candidate 225c is selected by the user. If the correction candidate 225c has not been received (step S216: No), the process waits for reception.

(Step S217)
If it is determined that the selected correction candidate 225c has been received (step S216: Yes), the data management unit 203 reflects the correction candidate 225c in the correction history data 225. At this time, the data management unit 203 reflects the correction candidate 225c having a high selection frequency so that it is positioned at the top of the list. Then, the process ends.

  In the above-described flow, when the storage data to be compared is designated from the client terminal 300 to the data management server 200, the subsequent processing is executed from step S212 without waiting for the data search request in step S211. Also good.

  As described above, in the present embodiment, the data management unit 203 stores the print data in the memory 206 that is the storage unit in association with the user information 220a, and the data comparison unit 204 stores the stored data and the new print data. When the data is compared, based on the result of the comparison by the data management unit 203, the character string extracted from the stored data becomes the pre-correction character string, the character string extracted from the new print data becomes the post-correction character string, and the user Manage in association with information. As a result, the correction candidates 225c for the correction target 225b related to the print data correction work can be automatically stored without performing an extra work of scanning the correction instruction.

  In this embodiment, the data comparison unit 204 compares the entire text of the print data and the accumulated data, and extracts the difference between the print data and the accumulated data when the matching rate of the entire document is equal to or higher than a certain level (for example, 80% or higher). Therefore, it is possible to reliably narrow down character strings of accumulated data and print data. If the matching rate of the entire document is not a certain level or more, the print data can be newly stored as accumulated data.

  In the present embodiment, the data management unit 203 sets the pre-correction character string as a correction target and sets the post-correction character string as a correction candidate based on the difference extraction result by the data comparison unit 204, and accumulates it as correction history data 225. Therefore, accumulation and acquisition of the correction candidate 220e with respect to the correction target 220d can be reliably performed.

  In the present embodiment, the print history data 220 includes user information 220a, a print data file format 220b, and a print data file name 220c. The data comparison unit 204 stores accumulated data to be compared with the print data. Is narrowed down by any of user information 220a, print data file format 220b, and print data file name 220c associated with the print data, it is possible to reliably and easily narrow down the accumulated data to be compared with the print data.

  In addition, since the correction candidate 225c for the correction target 225b of the correction history data 225 in the present embodiment is linked to the user information 220a, it is possible to manage an input error corresponding to the user's characteristics for each user.

  In the present embodiment, the MFP 100 is exemplified as the one that issues a data search request to the data management server 200, but a printer or a multifunction printer may be used instead of the MFP 100.

  Also, the print history data 220 may not include either the file format 220b or the file name 220c. In this case, in step S202 of FIG. 7, the data comparison unit 204 narrows the stored data based on the items included in the print history data 220 and the user information 220a in the file format 220b and the file name 220c. be able to.

10 Network 100 MFP
DESCRIPTION OF SYMBOLS 101 Control part 102 Communication management part 103 Data management part 104 Display management part 105 Operation reception part 106 Correction reflection part 107 Image formation part 108 Memory 110 Operation part 111 Display part 112 Scanner part 113 Printer part 114 FAX part 115,210 I / F
200 Data management server 201 Control unit 202 Communication management unit 203 Data management unit 204 Data comparison unit 205 Correction candidate creation unit 206 Memory 220 Print history data 220a User information 220b File format 220c File name 225 Correction history data 225a User information 220d, 225b Correction Target 220e, 225c Correction candidate 230 Correction candidate list 300 Client terminal

Claims (5)

A communication management unit that receives a data search request including print data;
A data management unit that manages the correction history data by storing the print data in the storage unit in association with user information as accumulated data;
A correction candidate creation unit,
When the communication management unit receives the data search request,
As a correction candidate list creation process,
The data management unit compares the new print data received by the communication management unit with the correction target of the correction history data, extracts a character string that is similar to the character string that matches both, and extracts the new print data If there is no correction target similar to the data, notify that there is no corresponding,
The correction candidate creation unit registers a correction target corresponding to the extracted character string and a correction candidate corresponding to the correction target in the correction candidate list,
The data management unit transmits the correction candidate list,
After the correction candidate list creation process, as a correction history accumulation process,
The data comparison unit compares the accumulated data with the new print data,
The data management unit sets a character string extracted from the accumulated data as a pre-correction character string, a character string extracted from the new print data as a post-correction character string based on the result of the comparison, and associates it with the user information. The correction history data is stored in the storage unit,
The correction target is the pre-correction character string of the correction history data,
The print data storage device, wherein the correction candidate is the corrected character string of the correction history data.   The data comparison unit compares the whole text of the print data and the accumulated data, and extracts a difference between the print data and the accumulated data when the matching ratio of the whole document is equal to or higher than a certain level. The print data storage device described in 1.   3. The data management unit according to claim 2, wherein, based on the difference extraction result, the pre-correction character string is a correction target, the post-correction character string is a correction candidate, and is stored as correction history data. Print data storage device. The data management unit manages print history data including the user information, a file format of the print data, and a file name of the print data;
The print according to claim 3, wherein the data comparison unit narrows down the accumulated data to be compared with the print data by any of the user information, the file format, and the file name attached to the print data. Data storage device. The communication management unit receives a correction candidate selected from the transmitted correction candidate list,
5. The data management unit according to claim 1, wherein when the selected correction candidate is received, the correction candidate having a high selection frequency is positioned at a higher position in the correction candidate list. 6. Print data storage device.

Images