JP5773137B2 - Document printing system - Google Patents

Description

  The present invention relates to a document printing system that prints and copies a document including confidential information and personal information.

  In this type of document printing system, there is a concern that information leakage may occur due to a mistake or leaving of a printed material or a copied material after printing or copying a document including confidential information or personal information.

  As a measure for preventing leakage of confidential information from printed matter, for example, Patent Document 1 discloses that confidential information and personal information are identified from the results of character string search in a document and the results of OCR (Optical Character Recognition) processing. A technique for changing whether printing is possible and the output destination according to the above is disclosed. In this technology, a document management system is used to specify confidential information and control whether to print. However, the technique disclosed in Patent Document 1 performs processing or the like when printing is performed by a printer based on document data, and is not considered when copying a printed matter, and prevents leakage of confidential information. Is insufficient. A copy request for a printed matter can be determined only by a printer. For this reason, there is a problem in that the printed matter of the user having the authority to print confidential information is copied, and as a result, the effect of the mechanism for preventing information leakage in the document management system is lost. Therefore, not only when printing confidential documents, but also when copying printed materials containing confidential documents, data processing is performed on the confidential area according to the authority level of the copy requester and the content of the confidential type included in the printed material. It is desirable.

  For example, Patent Documents 2 and 3 disclose measures for preventing leakage of confidential information from a copied material (copy printed material) in addition to a printed material.

  In the technique disclosed in Patent Document 2, a data processing type corresponding to a confidential type, a confidential area, and an authority level is defined in association with a print document ID. However, the security definition information in Patent Document 2 includes only the security type. For this reason, the technique of Patent Literature 2 can execute printing and copying according to the confidential type only in units of documents.

  On the other hand, the technique disclosed in Patent Document 3 includes an authority level, a confidential area (each location in one document), a confidential type for each confidential area, and the like as confidential definition information. Print and copy according to the authority level and confidentiality type for each location in a document.

JP 2006-252231 A JP 2007-122315 A JP 2008-028449 A JP 2010-158024 A

  The technique disclosed in Patent Document 3 uses a tint block as means for specifying which area of printed paper is a confidential area. Such a realization method has a problem that, when the confidential areas in the document overlap, the background pattern overlaps at the time of printing, and the confidential area cannot be read well at the time of copying.

  For example, when a table is set as a confidential area, if the secret level of a part of the table is set higher than the existing one, the setting of overlapping the confidential area, that is, a level higher than a part of the already set confidential area However, the technique disclosed in Patent Document 3 cannot execute this.

  Therefore, an object of the present invention is to provide a document printing system capable of specifying respective areas even if confidential areas overlap.

  According to the present invention, in a document printing system that executes printing of confidential document data and copying a confidential printed document, the document printing system includes a confidential document print control viewer, a printer multifunction peripheral, and a database group. The confidential document print control viewer adds a unique document data ID to the original document data input together with the print request and the user ID of the print requester and outputs the document data as document data. And the confidential type indicating the degree of confidentiality for each confidential area are stored in the database group in association with the document data ID so as to be updatable. Based on the user ID of the print requester transferred together with the print request, the authority level of the print requester is determined, and the previous In response to the print request of the print requester transferred together with the user ID from the confidential document print control viewer, a print document ID unique to the print document is stored in the database group in association with the document data ID. Based on the document data ID added to the document data input from the confidential document print control viewer, a user authentication unit that acquires the confidential area and the confidential type of the document data from the database group is determined. A processing determination unit that determines a processing type indicating the content of confidential processing for an area requiring confidentiality based on the authority level of the print requester and the acquired confidential area and confidential type, and the determined processing type is The document data is processed so that the confidential processing shown is applied to an area requiring confidentiality and the print document ID is embedded. Document printing system, comprising a printer unit for printing the print document according to the data is obtained.

  The multifunction printer reads the print document in which the print document ID is embedded, which is assigned together with the input of the copy request and the user ID of the copy requester, so that the print document ID is added as the document data. A scanner unit for outputting to the user authentication unit, wherein the user authentication unit is based on the print document ID added to the document data input from the scanner unit, and the document associated with the document data The data ID is acquired from the database group, the authority level of the copy requester is determined based on the user ID of the copy requester input together with the copy request, and the copy requester input with the user ID Accordingly, the print document ID is updated in the database group in association with the acquired document data ID. Further, based on the acquired document data ID, the confidential area and the confidential type of the document data output from the scanner unit are acquired from the database group, and the processing determination unit is determined The processing type is determined based on the authority level of the copy requester, the acquired confidential area and the acquired confidential type, and the printer unit applies the confidential processing indicated by the determined processing type to an area that requires confidentiality. And a copy print document corresponding to the document data output from the scanner unit may be printed so that the print document ID is embedded.

  The database group includes a print document table that stores the document data ID, the secret area, the secret type, and the print document ID in association with each other in an updatable manner, the secret type, and the authority level. A confidential type table that stores the processing types in association with each other and can be updated, and a user database that stores the user IDs in association with the authority levels in an updatable manner may be included.

  The print document ID may be embedded in the print document by a fingerprint method or a tint block method.

  According to the present invention, in a document printing method for executing printing of confidential document data and copying a confidential document, a confidential document print control viewer, a printer multifunction peripheral, and a database group are used. The confidential document print control viewer adds a unique document data ID to the original document data input together with the print request and the user ID of the print requester and outputs it as document data, and also requires confidentiality in the printed document. And a secret type indicating a degree of secrecy for each secret area are stored in the database group in association with the document data ID so as to be updatable, and the printer MFP includes a user authentication unit, a processing unit A print request from the confidential document print control viewer by the user authentication unit. Based on the user ID of the print requester transferred together, the authority level of the print requester is determined, and in response to the print requester's print request transferred together with the user ID from the confidential document print control viewer, it is printed on the print document. A unique print document ID is stored in the database group in association with the document data ID, and based on the document data ID added to the document data input from the confidential document print control viewer, The secret area and the secret type of the document data are acquired from the database group, and the processing determination unit determines the authority level of the print requester determined based on the acquired secret area and the secret type. The processing type indicating the secret processing content for the area requiring confidentiality is determined, and the determined processing type is indicated by the printer unit. Concealment processing as the print document ID is embedded with is performed on a region for which security is required, document printing method characterized by printing the print document according to the document data is obtained.

  The multi-function printer further includes a scanner unit, and by reading the print document in which the print document ID is embedded, which is assigned together with the input of the copy request and the user ID of the copy requester by the scanner unit, Based on the print document ID added to the document data input from the scanner unit by the user authentication unit, the document data is output as document data to which the print document ID is added. The associated document data ID is obtained from the database group, the authority level of the copy requester is determined based on the user ID of the copy requester input together with the copy request, and the copy input together with the user ID In response to a requester's copy request, the print document ID is associated with the acquired document data ID. A database group that is stored in an updated manner, and based on the acquired document data ID, the confidential area and the confidential type of the document data output from the scanner unit are acquired from the database group, and the processing The determination unit determines the processing type based on the determined authority level of the copy requester and the acquired confidential area and the confidential type, and the printer unit performs the confidential processing indicated by the determined processing type A copy print document according to the document data output from the scanner unit may be printed so that the print document ID is embedded and the print document ID is embedded.

  The database group includes a print document table that stores the document data ID, the secret area, the secret type, and the print document ID in association with each other in an updatable manner, the secret type, and the authority level. A confidential type table that stores the processing types in association with each other and can be updated, and a user database that stores the user IDs in association with the authority levels in an updatable manner may be included.

  The print document ID may be embedded in the print document by a fingerprint method or a background pattern method.

  The document printing system according to the present invention can specify each area even if the confidential areas overlap.

1 is a block diagram illustrating a document printing system according to an embodiment of the present invention. (A) of the database group in the document printing system shown in FIG. 1 shows the stored contents of the printed document table, (b) shows the stored contents of the confidential type table, and (c) shows the stored contents of the user database. FIG. (A) And (b) is a figure for demonstrating the copy operation | movement by the Example of this invention.

  The document printing system according to the present invention executes printing of confidential document data and copying of a confidential printed document.

  In particular, the document printing system includes a confidential document print control viewer, a printer multifunction peripheral, and a database group.

  The confidential document print control viewer adds a unique document data ID to the original document data input together with the print request and the user ID of the print requester, and outputs the document data. And a confidential type indicating the degree of confidentiality for each confidential area are stored in the database group in association with the document data ID so as to be updated.

  The printer multifunction device includes a user authentication unit, a processing determination unit, and a printer unit.

  The user authentication unit determines the authority level of the print requester based on the user ID of the print requester transferred together with the print request from the confidential document print control viewer, and the print transferred together with the user ID from the confidential document print control viewer. In response to the print request of the requester, the print document ID unique to the print document is stored in the database group in association with the document data ID, and further added to the document data input from the confidential document print control viewer. Based on the document data ID, the confidential area and confidential type of the document data are acquired from the database group.

  The processing process determination unit determines a processing type indicating the secret processing content for the area requiring confidentiality based on the determined authority level of the print requester and the acquired confidential area and confidential type.

  The printer unit prints a print document corresponding to the document data so that the confidential process indicated by the determined process type is performed on an area requiring confidentiality and the print document ID is embedded.

  The document printing system according to the present invention can specify each area even if the confidential areas overlap.

  In the present invention, the fact that the print document ID is embedded in the printed matter means that information is printed in a state in which information cannot be visually discriminated. However, it is preferable that information cannot be distinguished relatively easily by using a general-purpose device such as a so-called barcode.

  That is, according to the present invention, as a means for specifying a confidential area of a print document, document data that originally requires a secret is specified based on a print document ID embedded in a printed material, and a secret area is specified from the document data. Therefore, even if the confidential areas overlap, it is possible to specify each area.

  In other words, according to the present invention, it is not necessary to individually set what kind of processing is to be performed on each confidential area in the document data, and only by defining the confidential type in addition to the confidential area, the print requester and the copy request The processing of the confidential area according to the authority level of the person can be realized.

  More specifically, in the present invention, when document data is printed, processing is performed in the following flow, and appropriate processing is performed on a confidential area in the printed document.

  (1) A print request for document data to which a document data ID associated with a confidential area and a confidential type is added is issued from the confidential document print control viewer.

  (2) In the database group, the confidential area and the confidential type are stored in association with the document data ID so as to be updated. If the stored content of the document data ID of the document data to be printed is different from the stored content of the document data ID already stored in the database group, a new document data ID is assigned.

  (3) User authentication (acquisition of user ID) is performed by the printer multifunction device, and a preset authority level of the requester of printing is acquired.

  (4) The printer multifunction device also determines the processing type indicating the secret processing content for the area requiring confidentiality based on the authority level of the print requester, the confidential area, and the confidential type. The secret processing content is, for example, black painting.

  (5) The printer multifunction apparatus further prints a print document corresponding to the document data so that the confidential processing indicated by the determined processing type is performed on the area requiring confidentiality and the print document ID is embedded. The embedding of the print document ID is performed by using, for example, a fingerprint or tint block technique used in the technique disclosed in Patent Document 4.

  In the present invention, when a print document is copied, the following processing is performed to appropriately process the confidential area in the copy print document (copy document, copy document).

  (1) Scan a print document that requires confidentiality by a printer multifunction peripheral.

  (2) The print document ID embedded in the printed material at the time of scanning is also read.

  (3) Referring to the database group based on the print document ID, the document data ID of the printed matter is specified, and the confidential area and the confidential type associated with the document data ID are acquired.

  (4) User authentication (acquisition of user ID) is performed by the printer multifunction peripheral, and the authority level set in advance of the print requester is acquired.

  (5) The multi-function printer also determines a processing type indicating the content of confidential processing for an area requiring confidentiality based on the authority level of the print requester, the confidential area, and the confidential type. The secret processing content is, for example, black painting.

  (6) The printer multi-function peripheral further performs a copy print document corresponding to the scanned document data so that the confidential process indicated by the determined process type is performed on the area requiring confidentiality and the print document ID is embedded. Print. The embedding of the print document ID is performed by using, for example, a fingerprint or tint block technique used in the technique disclosed in Patent Document 4.

  By performing the above processing, not only when document data is printed, but also when copying a printed document, the processing corresponding to the authority level and the confidential type is performed on the confidential area. The effect of increasing the security of the k-copy printed document can be obtained.

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

  Referring to FIG. 1, the document printing system according to the first embodiment of the present invention executes printing of confidential document data and copying of a confidential printed document.

  In particular, the document printing system includes a confidential document print control viewer 110, a printer multifunction device 210, and a database group 310.

  The confidential document print control viewer 110 adds a unique document data ID to the original document data including the document content input together with the print request and the user ID of the print requester by the confidential definition information adding unit 111. Output as document data d10. At the same time, the confidential document print control viewer 110 can update the confidential area indicating the confidential area in the printed document and the confidential type indicating the degree of confidentiality for each confidential area in association with the document data ID. 310 is stored.

  The printer multifunction device 210 includes a user authentication unit 212, a processing process determination unit 213, and a printer unit 214.

  The user authentication unit 212 determines the authority level of the print requester based on the user ID of the print requester transferred together with the print request from the confidential document print control viewer 110. The user authentication unit 212 also associates the print document ID unique to the print document with the document data ID in response to the print request of the print requester transferred from the confidential document print control viewer 110 together with the user ID. Remember me. The user authentication unit 212 further acquires the confidential area and the confidential type of the document data d10 from the database group 310 based on the document data ID added to the document data d10 input from the confidential document print control viewer 110.

  Based on the determined authority level of the print requester and the acquired confidential area and confidential type, the processing process determination unit 213 determines a processing type indicating the confidential processing content for the area requiring confidentiality.

  The printer unit 214 performs confidential processing indicated by the determined processing type on an area requiring confidentiality, and print document ID is embedded in the form of a tag (print document ID tag D22) in the document data d10. The corresponding print document D20 is printed. The printer unit 214 includes a print data generation unit 214a that generates print data that has been subjected to processing based on the processing type determined by the processing processing determination unit 213, and image data to be printed out from the print data. And a rasterizer 214b to be generated.

  In the present invention, the fact that the print document ID is embedded in the printed matter means that information is printed in a state in which information cannot be visually discriminated. However, it is preferable that information cannot be distinguished relatively easily by using a general-purpose device such as a so-called barcode. Specifically, the print document ID is embedded in the print document by, for example, a fingerprint method or a background pattern method.

  Furthermore, the printer MFP 210 reads the print document ID 10 embedded with the print document ID (print document ID tag D12) assigned together with the input of the copy request and the user ID of the copy requester, thereby obtaining the print document ID. Is further provided as a scanner unit 211 that outputs the document data to the user authentication unit 212.

  Based on the print document ID added to the document data input from the scanner unit 211, the user authentication unit 212 of the printer MFP 210 acquires the document data ID associated therewith from the database group 310. The user authentication unit 212 also determines the authority level of the copy requester based on the user ID of the copy requester input together with the copy request, and prints according to the copy request of the copy requester input together with the user ID. The document ID is stored in the database group 310 in association with the acquired document data ID. The user authentication unit 212 further acquires the confidential area and the confidential type of the document data output from the scanner unit 211 from the database group 310 based on the acquired document data ID.

  The processing determination unit 213 of the printer MFP 210 determines the processing type based on the determined authority level of the copy requester and the acquired confidential area and confidential type.

  The printer unit 214 of the multifunction printer 210 applies document processing output from the scanner unit 211 so that the confidential processing indicated by the determined processing type is performed on an area requiring confidentiality and the print document ID is embedded. The corresponding copy print document is printed.

  2A to 2C, the database group 310 includes a print document table 311, a confidential type table 312, and a user database 313.

  As shown in FIG. 2A, the print document table 311 stores a document data ID, a secret area, a secret type, and a print document ID in association with each other in an updatable manner. Note that the confidential area is not in units of objects such as tables, graphs, and document paragraphs in the document, but by specifying coordinate designation “x1, y1-x2, y2” in the document, even if a plurality of confidential areas overlap, Different processing types can be set for each region.

  As shown in FIG. 2B, the confidential type table 312 stores the confidential type, the authority level, and the processing type in association with each other so as to be updatable.

  As shown in FIG. 2C, the user database 313 stores the user ID and the authority level in association with each other so as to be able to be updated.

  Next, the operation of the document printing system (the document printing method according to the present invention) will be described with reference to FIGS. 1, 2A to 2C, and FIGS. 3A and 3B.

[Print document data]
(1) First, the confidential document print control viewer 110 inputs a unique document data ID “001” to the original document data including the document content, which is input together with the print request and the user ID of the print requester “General Manager N”. It is added and output as document data d10. At the same time, the confidential document print control viewer 110 generates a confidential area “x1, y1-x2, y2” indicating an area that requires confidentiality in the printed document and a confidential type “budget data” indicating the degree of confidentiality for each confidential area. And stored in the print document table 311 (FIG. 2A) of the database group 310 in association with the document data ID “001”.

  (2) Next, the user database 313 of the database group 310 is based on the user ID of the print requester “General Manager N” transferred from the confidential document print control viewer 110 together with the print request by the user authentication unit 212 of the multifunction printer 210. Referring to (FIG. 2C), the authority level “business department manager level” of the print requester “manager N” is determined.

  (3) Along with this, in response to the print request of the print requester “General Manager N” transferred from the confidential document print control viewer 110 together with the user ID by the user authentication unit 212, the print document ID “PRINTERA- “00001” is stored in the print document table 311 of the database group 310 in association with the document data ID “001”.

  (4) Further, based on the document data ID “001” added to the document data d10 input from the confidential document print control viewer 110 by the user authentication unit 212 of the printer MFP 210, the confidential area of the document data d10 is displayed. “X1, y1-x2, y2” and the confidential type “budget data” are acquired from the print document table 311 of the database group 310.

  (5) Next, the processing level determination unit 213 refers to the print document table 311 confidential type table 312 (FIG. 2B) of the database group 310 and determines the authority level of the determined print requester “department manager N”. Based on the “business department level”, the acquired confidential area “x1, y1-x2, y2” and the confidential classification “budget data”, the processing type “visible printing” indicating the confidential processing content for the area requiring confidentiality is determined. To do.

  (6) Then, the printer unit 214 performs the confidential processing (visible printing) indicated by the determined processing type “visible printing” on the area requiring confidentiality and print document ID “PRINTERA-00001” (printed document). The print document D20 corresponding to the document data d10 is printed so that the ID tag D22) is embedded.

[Copy of printed document (business manager level)]
(1) First, the print document ID “PRINTERA-00001” (print document ID tag D12) assigned together with the input of the copy request and the user ID of the copy requester “General Manager N” by the scanner unit 211 of the multifunction printer 210. ) Is embedded, and is output to the user authentication unit 212 as document data to which the print document ID “PRINTERA-00001” is added.

  (2) Based on the print document ID “PRINTERA-00001” added to the document data input from the scanner unit 211 by the user authentication unit 212, the document data ID “001” associated therewith is assigned to the database group. It is acquired from the print document table 311 310 (FIG. 2A).

  (3) Next, the user authentication unit 212 refers to the user database 313 (FIG. 2C) of the database group 310 based on the user ID of the copy requester “director N” input together with the copy request. The authority level “business manager level” of the copy requester “manager N” is determined.

  (4) At the same time, the print document ID “PRINTERA-00001” is obtained as the acquired document data ID “001” in response to the copy request of the copy requester “General Manager N” input together with the user ID by the user authentication unit 212. And stored in the print document table 311 of the database group 310.

  (5) Further, based on the document data ID “001” acquired by the user authentication unit 212 of the multifunction printer 210, the confidential area “x1, y1-x2, y2” of the document data output from the scanner unit and the confidential The type “budget data” is acquired from the print document table 311 of the database group 310.

  (6) Next, the processing level determination unit 213 refers to the print document table 311 confidential type table 312 (FIG. 2B) of the database group 310, and determines the authority level of the determined copy requester “department manager N” The processing type “visible printing” is determined based on the “business manager level”, the acquired confidential area “x1, y1-x2, y2” and the confidential type “budget data”.

  (7) Then, the printer unit 214 performs the confidential processing indicated by the determined processing type “visible printing” on the area requiring confidentiality and print document ID “PRINTERA-00001” (print document ID tag D22). The copy print document D20 corresponding to the document data output from the scanner unit is printed (FIG. 3A).

[Copy of printed document (chief / in charge level)]
(1) First, the print document ID “PRINTERA-00001” (print document ID tag D12) assigned together with the input of the copy request and the user ID of the copy requester “in charge C” by the scanner unit 211 of the multifunction printer 210. ) Is embedded, and is output to the user authentication unit 212 as document data to which the print document ID “PRINTERA-00001” is added.

  (2) Based on the print document ID “PRINTERA-00001” added to the document data input from the scanner unit 211 by the user authentication unit 212, the document data ID “001” associated therewith is assigned to the database group. It is acquired from the print document table 311 310 (FIG. 2A).

  (3) Next, the user authentication unit 212 refers to the user database 313 (FIG. 2C) of the database group 310 based on the user ID of the copy requester “in charge C” input together with the copy request. The authority level “chief / charge level” of the copy requester “charge C” is determined.

  (4) At the same time, the print document ID “PRINTERA-00001” is obtained by the user authentication unit 212 in response to the copy request of the copy requester “person C” input together with the user ID, and the acquired document data ID “001”. And stored in the print document table 311 of the database group 310.

  (5) Further, based on the document data ID “001” acquired by the user authentication unit 212 of the multifunction printer 210, the confidential area “x1, y1-x2, y2” of the document data output from the scanner unit and the confidential The type “budget data” is acquired from the print document table 311 of the database group 310.

  (6) Next, the processing level determination unit 213 refers to the print document table 311 confidential type table 312 (FIG. 2B) of the database group 310 and determines the authority level of the copy requester “in charge C” determined. Based on the “supervisor / in charge level”, the acquired confidential area “x1, y1-x2, y2” and the confidential classification “budget data”, the processing type “black printing” is determined.

  (7) Then, the printer unit 214 performs the confidential processing indicated by the determined processing type “black printing” on the area requiring confidentiality and print document ID “PRINTERA-00001” (print document ID tag D22). A copy print document D20 ′ corresponding to the document data output from the scanner unit is printed so that “” is embedded (FIG. 3B).

  The second embodiment of the present invention is different from the first embodiment in that the print document ID contains a character string that can be identified by which printer (printer multifunction device). For this reason, about the same or similar part as Example 1, description of Example 1 and drawing are used, and detailed description is abbreviate | omitted.

  Referring to FIG. 1, the document printing system according to the second embodiment of the present invention includes a confidential document print control viewer 110, a printer multifunction device 210, and a database group 310 as in the first embodiment. Yes.

  The multifunction printer 210 includes a scanner unit 211, a user authentication unit 212, a processing determination unit 213, and a printer unit 214. The printer unit 214 includes a print data generation unit 214a and a rasterizer 214b.

  The database group 310 includes a print document table 311, a confidential type table 312, and a user database 313.

  2A to 2C, the print document table 311 stores a document data ID, a secret area, a secret type, and a print document ID in association with each other in an updatable manner. The confidential type table 312 stores the confidential type, the authority level, and the processing type in association with each other so that they can be updated. The user database 313 stores the user ID and the authority level in association with each other so as to be able to be updated.

  Particularly in the present embodiment, the print document table 312 is referred to by including in the print document ID unique to the print document a character string for determining which printer (printer multi-function peripheral) is the printed material. It becomes possible to confirm by which printer the printed document was printed.

  Although the present invention has been described above with reference to some embodiments, various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention. Further, the present invention includes a combination of some or all of the configurations of the above embodiments as appropriate.

  Needless to say, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the technical scope described in the claims.

DESCRIPTION OF SYMBOLS 110 Confidential document print control viewer 111 Confidential definition information addition part 210 Printer multifunction device 212 User authentication part 213 Processing process determination part 214 Printer part 214a Print data generation part 214b Rasterizer 310 Database group 311 Print document table 312 Confidential classification table 313 User database

Claims (6)

In a document printing system that performs printing of confidential document data and copying confidential printed documents,
A confidential document print control viewer, a printer multifunction peripheral, and a database group;
The confidential document print control viewer
A unique document data ID is added to the original document data input together with the print request and the user ID of the print requester, and is output as document data.
A confidential area indicating a confidential area in a printed document and a confidential type indicating a degree of confidentiality for each confidential area are stored in the database group in association with the document data ID and can be updated.
The printer MFP is
The authority level of the print requester is determined based on the user ID of the print requester transferred together with the print request from the confidential document print control viewer, and the print requester transferred along with the user ID from the confidential document print control viewer is determined. In response to the print request, a print document ID unique to the print document is stored in the database group in association with the document data ID, and further added to the document data input from the confidential document print control viewer. A user authentication unit that obtains the confidential area and the confidential type of the document data from the database group based on the document data ID;
Based on the determined authority level of the print requester and the acquired confidential area and the confidential type, a processing processing determination unit that determines a processing type indicating the confidential processing content for the area requiring confidentiality,
A printer unit that prints a print document according to the document data so that the confidential processing indicated by the determined processing type is performed on an area requiring confidentiality and the print document ID is embedded;
By reading the print request in which the print document ID is embedded, which is assigned together with the input of the copy request and the user ID of the copy requester, the document data with the print document ID added is output to the user authentication unit. A scanner unit,
The user authentication unit includes:
Based on the print document ID added to the document data input from the scanner unit, the document data ID associated therewith is acquired from the database group,
Determining the authority level of the copy requester based on the user ID of the copy requester entered with the copy request;
In response to the copy request of the copy requester input together with the user ID, the print document ID is stored in the database group in association with the acquired document data ID, and further,
Based on the acquired document data ID, the confidential area and the confidential type of the document data output from the scanner unit are acquired from the database group,
The processing determination unit determines the processing type based on the determined authority level of the copy requester and the acquired confidential area and the confidential type,
The printer unit performs copy processing according to the document data output from the scanner unit so that the confidential processing indicated by the determined processing type is performed on an area requiring confidentiality and the print document ID is embedded. A document printing system for printing a printed document. The database group is:
A print document table that stores the document data ID, the secret area, the secret type, and the print document ID in association with each other in an updatable manner;
A security type table that stores the security type, the authority level, and the processing type in association with each other in an updatable manner;
The document printing system according to claim 1, further comprising: a user database that stores the user ID and the authority level in association with each other so as to be updated.   The document printing system according to claim 1, wherein the print document ID is embedded in the print document by a fingerprint method or a tint block method. In a document printing method for printing confidential document data and copying a confidential document,
Using a confidential document print control viewer, a printer MFP, and a database group,
The confidential document print control viewer adds a unique document data ID to the original document data input together with the print request and the user ID of the print requester and outputs it as document data, and also requires confidentiality in the printed document. And a confidential type indicating the degree of confidentiality for each confidential area are stored in the database group in association with the document data ID and can be updated,
The printer multifunction device includes a user authentication unit, a processing determination unit, a printer unit, and a scanner unit,
A document to which the print document ID is added by reading the print document embedded with the print document ID unique to the print document, which is assigned together with the copy request and the user ID of the copy requester by the scanner unit Output as data to the user authentication unit,
By the user authentication unit,
Determining the authority level of the print requester based on the user ID of the print requester transferred together with the print request from the confidential document print control viewer;
Wherein the confidential document printing control viewer in response to a print request transferred print requestor with the user ID, the print document ID, the are stored in the database group in association with the document data ID, further,
Based on the document data ID added to the document data input from the confidential document print control viewer, the confidential area and the confidential type of the document data are acquired from the database group,
Based on the determined authority level of the print requester and the acquired confidential area and the confidential classification, the processing type determination unit determines the processing type indicating the confidential processing content for the area requiring confidentiality,
The printer unit prints a print document corresponding to the document data so that the confidential processing indicated by the determined processing type is performed on an area requiring confidentiality and the print document ID is embedded.
Furthermore, by the user authentication unit,
Based on the print document ID added to the document data input from the scanner unit, the document data ID associated therewith is acquired from the database group,
Determining the authority level of the copy requester based on the user ID of the copy requester entered with the copy request;
In response to the copy request of the copy requester input together with the user ID, the print document ID is stored in the database group in association with the acquired document data ID, and further,
Based on the acquired document data ID, the confidential area and the confidential type of the document data output from the scanner unit are acquired from the database group,
Furthermore, the processing type determination unit determines the processing type based on the determined authority level of the copy requester and the acquired confidential area and the confidential type,
Further, according to the document data output from the scanner unit, the printer unit performs confidential processing indicated by the determined processing type on an area requiring confidentiality and embeds the print document ID. A document printing method characterized by printing a copied print document. The database group is:
A print document table that stores the document data ID, the secret area, the secret type, and the print document ID in association with each other in an updatable manner;
A security type table that stores the security type, the authority level, and the processing type in association with each other in an updatable manner;
The document printing method according to claim 4, further comprising a user database that stores the user ID and the authority level in association with each other so as to be able to be updated.   6. The document printing method according to claim 4, wherein the print document ID is embedded in the print document by a fingerprint method or a tint block method.

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