WO2022113891A1

WO2022113891A1 - Image formation device

Info

Publication number: WO2022113891A1
Application number: PCT/JP2021/042535
Authority: WO
Inventors: 公二江藤
Original assignee: 京セラドキュメントソリューションズ株式会社
Priority date: 2020-11-30
Filing date: 2021-11-19
Publication date: 2022-06-02
Also published as: JPWO2022113891A1

Abstract

An image formation device 1 comprises: a registration unit 13 that registers a registration keyword or a registration key image; a data storage unit 14 that stores document image data; an extraction unit 15 that extracts an extraction keyword or an extraction key image from the document image data; a collation unit 19 that collates the extraction keyword or the extraction key image extracted by the extraction unit 15 and the registration keyword or the registration key image registered in the registration unit 13, and outputs collation information indicating a collation result as to whether the extraction key image matches the registration keyword or the registration key image; and an output blocking unit 20 that, on the basis of the collation information, permits or prohibits the output of the document image data.

Description

Image forming device

The present invention relates to an image forming apparatus.

Patent Document 1 states that when it is determined that the received document data contains a keyword, the document data is only temporarily stored in the document registration system and the document data is not stored in the document management system. Notify the administrator of the document registration system.

Japanese Unexamined Patent Publication No. 2005-277786

However, Patent Document 1 does not mention blocking the output of the document data when an illegal output instruction is issued for the document data temporarily stored in the document registration system.

An object of the present invention is to provide an image forming apparatus capable of preventing leakage of document image data of a confidential document.

The image forming apparatus according to one aspect of the present invention has a registration unit for registering a registered keyword or a registration key image, a data storage unit for storing document image data, and an extraction keyword or an extraction key image extracted from the document image data. The extraction key image and the registration key image are collated with the extraction unit, the registration keyword or the registration key image registered in the registration unit, and the extraction keyword or the extraction key image extracted by the extraction unit. A collation unit that outputs collation information indicating whether or not the keyword or the registration key image matches, and an output blocking unit that permits or prohibits the output of the document image data based on the collation information. To prepare for.

According to the image forming apparatus of the present invention, it is possible to prevent leakage of document image data of confidential documents.

It is a figure which shows the image forming apparatus which concerns on embodiment of this invention. It is a block diagram which shows the structure of the image forming apparatus which concerns on this embodiment. It is a figure which shows an example of the registration contents registered in the registration part of the image forming apparatus which concerns on this embodiment. It is a figure which shows one form of the extraction keyword or extraction key image extracted by the extraction part of the image formation apparatus which concerns on this embodiment. It is a figure which conceptually shows how the extraction keyword or the extraction key image is collated by the collation part of the image forming apparatus which concerns on this embodiment. It is a flowchart which shows the process by the image forming apparatus which concerns on this embodiment. It is a flowchart which shows the process by the image forming apparatus which concerns on this embodiment. It is a flowchart which shows the process by the image forming apparatus which concerns on this embodiment. It is a flowchart which shows the process by the image forming apparatus which concerns on this embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the figure, the same or corresponding parts are designated by the same reference numerals and the description is not repeated. Further, in the present embodiment, the X-axis, the Y-axis, and the Z-axis that are orthogonal to each other are shown in the figure. The Z-axis is parallel to the vertical plane and the X-axis and Y-axis are parallel to the horizontal plane.

The image forming apparatus 100 according to the embodiment of the present invention will be described with reference to FIG. FIG. 1 is a diagram showing an image forming apparatus 100 according to the present embodiment. The image forming apparatus 100 is, for example, a copying machine, a facsimile, or a multifunction device having these functions.

As shown in FIG. 1, the image forming apparatus 100 includes a feeding unit 1, a conveying unit 2, an image forming unit 3, a fixing device 4, an discharging unit 5, a document conveying device 6, and a reading device 7. To prepare for. Specific examples of the image forming apparatus 100 are a printer, a fax machine, and an MFP (Multifunction Printer).

The feeding unit 1 feeds the sheet S. The feeding unit 1 may include a tray and a pickup roller. The tray loads the seat S. The pickup roller picks up the sheet S of the tray and feeds it. The sheet S is an example of a recording medium.

The transport unit 2 transports the sheet S fed from the feed unit 1. The transport unit 2 may include a transport roller and a resist roller in the transport path. A plurality of transfer rollers may be arranged in the transfer path, and transfer the sheet S.

The resist roller adjusts the timing of transporting the sheet S to the image forming unit 3. The transport unit 2 transports the sheet S from the feed unit 1 to the discharge unit 5 via the image forming unit 3 and the fixing device 4.

The image forming unit 3 forms a toner image on the sheet S by an electrophotographic method based on the document image data. The document image data indicates, for example, an image of the manuscript D. The image forming unit 3 has, for example, a photoconductor drum, a charging device, an exposure device, a developing device, a toner replenishing device, a transfer roller, a cleaning device, and a static elimination device.

The image forming unit 3 may form an image (not shown) on the sheet S by an inkjet method. In the case of the inkjet method, the image forming unit 3 has an ink tank, an actuator, an injection nozzle, and the like.

The fixing device 4 heats and pressurizes the toner image to fix the toner image on the sheet S.

The discharging unit 5 discharges the sheet S to the outside of the housing of the image forming apparatus 100. The discharge unit 5 may include a discharge roller and a discharge tray. The discharge roller discharges the sheet S conveyed by the transfer roller from the fixing device 4 to the discharge tray. The discharge tray loads the discharged sheet S. The

The document transfer device 6 conveys the document D. The document transfer device 6 is, for example, an ADF (Auto Document Feeder).

The reading device 7 reads the image of the document D transported by the document transporting device 6. The reading device 7 generates document image data from the read image. As an example, the reading device 7 is a CIS (Contact Image Sensor) type scanner or a CCD (Charge Coupled Devices) type scanner.

Next, the configuration of the image forming apparatus 100 according to the present embodiment will be further described with reference to FIGS. 2 to 5. FIG. 2 is a block diagram showing the configuration of the image forming apparatus 100 according to the present embodiment. FIG. 3 is a diagram showing an example of registration contents registered in the registration unit 13 of the image forming apparatus 100 according to the present embodiment. FIG. 4 is a diagram showing one form of the extraction keyword 32 or the extraction key image 33 extracted by the extraction unit 15 of the image forming apparatus 100 according to the present embodiment. FIG. 5 is a diagram conceptually showing how the extraction keyword 32 or the extraction key image 33 is collated by the collation unit 19 of the image forming apparatus 100 according to the present embodiment.

The image forming apparatus 100 according to the present embodiment includes a registration unit 13, a data storage unit 14, an extraction unit 15, a collation unit 19, and an output blocking unit 20. The registration unit 13 registers the registration keyword 30 or the registration key image 31. The data storage unit 14 stores document image data. The extraction unit 15 extracts the extraction keyword 32 or the extraction key image 33 from the document image data. The collation unit 19 collates the extraction keyword 32 or the extraction key image 33 extracted by the extraction unit 15 with the registration keyword 30 or the registration key image 31 registered in the registration unit 13, and outputs the collation information. Based on the collation information, the output blocking unit 20 disconnects the line connection before transmitting the document image data, or blocks the output of the document image data.

The image forming apparatus 100 according to the present embodiment includes a registration unit 13, an image forming unit 23, an extraction unit 15, a collating unit 19, and an output blocking unit 20. The registration unit 13 registers the registration keyword 30 or the registration key image 31. The data storage unit 14 stores document image data. The image forming unit 23 forms an image on the print medium based on the document image data. The collation unit 19 collates the extraction keyword 32 or the extraction key image 33 extracted by the extraction unit 15 with the registration keyword 30 or the registration key image 31 registered in the registration unit 13, and outputs the collation information. The output blocking unit 20 blocks the output of the document image data to the image forming unit 23 based on the collation information.

The image forming apparatus 100 according to the present embodiment further includes a line connecting unit 10 and a data receiving unit 11. The line connection unit 10 connects to an external line. The data receiving unit 11 receives the document image data from the external line.

The image forming apparatus 100 according to the present embodiment further includes a reading unit 12. The reading unit 12 reads the document D and outputs the document image data.

The image forming apparatus 100 according to the present embodiment further includes an instruction unit 16. The instruction unit 16 receives an output instruction or a transmission instruction of the document image data, and outputs instruction information indicating the transmission instruction.

The image forming apparatus 100 according to the present embodiment further includes an authentication unit 17. The authentication unit 17 authenticates the ID or password and outputs the authentication information.

The image forming apparatus 100 according to the present embodiment further includes a transmitting unit 18. The transmission unit 18 transmits the document image data via the line connection unit 10. The

The image forming apparatus 100 according to the present embodiment further includes an output unit 22. The output unit 22 outputs the document image data from the data storage unit 14 based on the instruction information.

The image forming apparatus 100 according to the present embodiment further includes an encryption unit 24 and a decryption password creation unit 25. The encryption unit 24 encrypts the document image data before transmitting the document image data, and creates the encrypted data. The decryption password creation unit 25 creates a decryption password for decrypting the encrypted data in association with the encrypted data. Further, the transmission unit 18 transmits the encrypted data and the decryption password via the line connection unit 10.

In the image forming apparatus 100 according to the present embodiment, the transmission unit 18 transmits the encrypted data and the decryption password only to the terminal of the registered address via the line connection unit 10.

As shown in FIG. 2, the image forming apparatus 100 includes a control unit 200, a line connection unit 10, a data receiving unit 11, a reading unit 12, a registration unit 13, a data storage unit 14, and an instruction unit 16. , A transmission unit 18 and an image forming unit 23 (which may be the same as the image forming unit 3 shown in FIG. 1).

The control unit 200 includes a processor, a RAM (RandomAccessMemory), a ROM (ReadOnlyMemory), and a dedicated hardware circuit. The processor is, for example, a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), an MPU (Micro Processing Unit), or the like. The control unit 200 includes a control unit 28, an extraction unit 15, an authentication unit 17, a collation unit 19, an output blocking unit 20, a reconnection prohibition unit 21, an output unit 22, an encryption unit 24, and a decryption unit. It includes a password creation unit 25 and a line recovery unit 26.

The control unit 200 is operated by the processor according to the control program stored in the main storage device described later, so that the control unit 28, the extraction unit 15, the authentication unit 17, the collation unit 19, and the output blocking unit 20 are operated. It functions as a reconnection prohibition unit 21, an output unit 22, an encryption unit 24, a decryption password creation unit 25, and a line recovery unit 26. However, these control units 28 and the like can be configured by hardware circuits, regardless of the operation according to the control program by the control unit 200. Hereinafter, the same applies to each embodiment unless otherwise specified.

The control unit 28 controls the overall operation of the image forming apparatus 100.

As shown in FIG. 2, the line connection unit 10 connects to an external line. A specific example of the line connection unit 10 is a network I / F (Interface). That is, the line connection unit 10 is a network interface for communicating the image forming apparatus 100 with an external communication device, another system, or the Internet via an external line.

An example of an external line is a local area network (LAN) or wide area network (WAN), which may include the Internet.

The data receiving unit 11 receives the document image data from the line. A specific example of the data receiving unit 11 is a codec (CODEC: CODER / DECODER). The data receiving unit 11 receives document image data from a LAN (Local Area Network) or a WAN (Wide Area Network).

The reading unit 12 reads the document D and outputs the document image data. The reading unit 12 includes the document transporting device 6 described with reference to FIG. 1 and the reading device 7. An example of the document transfer device 6 is an ADF (Auto Document Feeder). The ADF has a document tray, a transport roller, and a document ejection tray.

The ADF conveys the original D placed on the original tray by the conveying roller, and conveys the original D to the reading surface of the reading device 7. Then, the ADF ejects the document D read by the reading device 7 to the document ejection tray.

The reading device 7 has an optical mechanism (for example, a scanner) including a camera, a lens, a mirror, and the like, and reads the document D conveyed by the ADF on the reading surface. The reading device 7 generates the document image data of the scanned document D.

The registration unit 13 is, for example, a non-volatile memory or the like, and the registration keyword 30 or the registration key image 31 is registered. As shown in FIG. 3, specific examples of the registered keyword 30 are "confidential document", "confidential" and the like. A specific example of the registration key image 31 is an image in which the wording of confidential information is surrounded by a frame. For example, the registration keyword 30 or the registration key image 31 is registered in advance by the user.

The data storage unit 14 stores document image data. The data storage unit 14 includes a non-volatile memory. Further, the data storage unit 14 includes a storage device and stores document image data and a computer program. Specifically, the data storage unit 14 includes a main storage device such as a semiconductor memory and an auxiliary storage device such as a semiconductor memory and / or a hard disk drive. For example, the document image data is stored in the non-volatile memory, and the computer program is stored in the main storage device.

An example of the main storage device is an HDD (Hard Disk Drive) or an SSD (Solid State Drive). An example of the auxiliary storage device is a USB memory (Universal Serial Bus).

The extraction unit 15 extracts the extraction keyword 32 or the extraction key image 33 from the document image data received by the data reception unit 11 or the document image data generated by the reading unit 12.

As shown in FIG. 4, for example, the document image data received by the data receiving unit 11 or the character image data of the manuscript D read by the reading unit 12 includes an image in which confidential characters are surrounded by a frame. The extraction unit 15 discriminates an image in which confidential characters are surrounded by a frame by, for example, a pattern matching technique or a character identification technique via OCR, and extracts the image as an extraction key image 33 from the document image data.

A specific example of the instruction unit 16 is a user interface such as a touch panel or a button. The user inputs an output instruction or a transmission instruction of the document image data by the touch panel or the button.

The instruction unit 16 receives an output instruction of the document image data to the image forming unit 23 from the user, and outputs the instruction information as the output instruction. Further, the instruction unit 16 receives an instruction to transmit the document image data to the external line, and outputs the instruction information as the transmission instruction. That is, the instruction unit 16 outputs instruction information indicating that the document image data stored in the data storage unit 14 is output to the image forming unit 23 via the output unit 22. The instruction unit 16 outputs instruction information indicating that the document image data stored in the data storage unit 14 is transmitted to the external line via the transmission unit 18.

The instruction unit 16 accepts an ID (Identification) or password input in addition to an output instruction to the image forming unit 23 of the document image data or a transmission instruction to an external line based on the operation by the user. The ID is, for example, a registration ID which is user identification information. The ID may be a registration ID which is identification information of an external terminal. The password is an authentication code for authenticating the user, and is a registration password registered in advance by the user.

The authentication unit 17 authenticates whether the ID or password input to the instruction unit 16 is a predetermined formal ID or password, and authenticates whether or not to approve the input user ID or password. Output information. The authentication unit 17 executes the above authentication when the instruction unit 16 issues an output instruction for the document image data stored in the data storage unit 14.

The transmission unit 18 transmits the document image data to the external line via the line connection unit 10. A specific example of the transmission unit 18 is a codec (CODEC: CODER / DECODER). When the authentication unit 17 outputs the authentication information, the transmission unit 18 transmits the document image data to the external line via the line connection unit 10.

When it is necessary to prevent transmission of the document image data to an external line due to confidential information or the like, the output blocking unit 20 described later blocks the transmission of the document image data by the transmitting unit 18.

The collation unit 19 collates the registered keyword 30 or the registration key image 31 registered in the registration unit 13 with the extraction keyword 32 or the extraction key image 33 extracted by the extraction unit 15, and collates with the registration keyword 30 or the registration key image 31. , Outputs collation information indicating whether or not the extraction keyword 32 or the extraction key image 33 matches.

FIG. 5 is a diagram conceptually showing how the extraction keyword 32 or the extraction key image 33 is collated by the collation unit 19 of the image forming apparatus 100 according to the present embodiment. The collation unit 19 is a registration key image 31 registered in the registration unit 13 in which confidential characters are surrounded by a frame, and an image in which confidential characters extracted by the extraction unit 15 are surrounded by a frame. It is collated with the extraction key image 33.

For example, when the same image as the image in which the confidential characters extracted by the extraction unit 15 are surrounded by a frame is registered in the registration unit 13 as the registration key image 31, the collation unit 19 registers the image. Outputs collation information indicating that the image is present.

The output blocking unit 20 permits or prohibits the output of the above document image data based on the content indicated by the collation information. For example, the output blocking unit 20 disconnects the line connection before the document image data is transmitted to the external line based on the content indicated by the collation information. The output blocking unit 20 outputs the document image data to the image forming unit 23 when the collation information indicates that the registered keyword 30 or the registered key image 31 matches the extracted keyword 32 or the extracted key image 33. Stop.

The output blocking unit 20 does not disconnect the line connection when the collation information output by the collation unit 19 indicates that the extraction keyword 32 or the extraction key image 33 extracted by the extraction unit 15 is not registered in the registration unit 13. ..

Further, when the collation information output by the collation unit 19 indicates that the extraction keyword 32 or the extraction key image 33 extracted by the extraction unit 15 is not registered in the registration unit 13, the output blocking unit 20 uses the output unit 22. It does not block the output of the document image data to the image forming unit 23.

When the collation information output by the collation unit 19 indicates that the extraction keyword 32 or the extraction key image 33 extracted by the extraction unit 15 is registered in the registration unit 13, the output blocking unit 20 is a document image by the transmission unit 18. Disconnect the line connection before sending the data to the external line.

Specifically, the output blocking unit 20 outputs a stop instruction to the transmitting unit 18 to stop the transmission of the document image data by the transmitting unit 18 to the external line. After that, the output blocking unit 20 outputs a disconnection instruction to the line connection unit 10 to disconnect the line connection.

Further, when the collation information output by the collation unit 19 indicates that the extraction keyword 32 or the extraction key image 33 extracted by the extraction unit 15 is registered in the registration unit 13, the output blocking unit 20 uses the output unit 22. The output of the document image data to the image forming unit 23 is blocked.

According to this embodiment, since the line is disconnected before the document image data is transmitted to the external line, it is possible to prevent the document image data of the confidential document from leaking to the external line.

Further, according to the present embodiment, since the document image data is prevented from being output to the image forming unit 23, it is possible to prevent the leakage of the document image data of the confidential document.

Further, according to the present embodiment, it is possible to prevent leakage of document image data of confidential documents obtained from an external line.

Further, according to the present embodiment, it is possible to prevent leakage of the document image data of the confidential document read by the reading unit 12.

Further, according to the present embodiment, the user can instruct the transmission of the document image data to the external line. The user can instruct the output of the document image data to the image forming unit 23.

Further, according to the present embodiment, since the user's ID or password is authenticated, it is possible to prevent the leakage of confidential documents to a person other than the registered user.

Further, according to the present embodiment, even if an instruction to transmit the document image data via the line connection unit 10 is issued, the line is disconnected before the confidential document is transmitted, so that the document image data of the confidential document Can be prevented from leaking to an external line.

As shown in FIG. 2, the reconnection prohibition unit 21 prohibits the reconnection of the disconnected line.

The output unit 22 outputs the document image data to the image forming unit 23 based on the content indicated by the above instruction information.

The image forming unit 23 forms the image indicated by the document image data on the print medium. The image forming unit 23 can execute a printing process based on the document image data by an electrophotographic method or an inkjet method, and forms an image on a print medium based on the document image data.

For example, when the image forming unit 23 is an electrophotographic system, the image forming unit 23 includes a photoconductor drum, a charging device, an exposure device, a developing device, a transfer device, a fixing device 4 (FIG. 1), and the like. For example, when the image forming unit 23 is an inkjet method, the image forming unit 23 includes an ink tank, an actuator, a nozzle, and the like.

The output blocking unit 20 performs a process of blocking the output of the document image data to the image forming unit 23 according to the content indicated by the collation information.

Further, according to the present embodiment, even if the user inputs an instruction to output the document image data by the image forming unit 23, the matching information output by the collating unit 19 is the extraction keyword 32 extracted by the extracting unit 15. Alternatively, when it is shown that the extraction key image 33 is registered in the registration unit 13, the output of the document image data to the image forming unit 23 is blocked, so that the leakage of the document image data of the confidential document is prevented. Can be done.

The instruction unit 16 receives an instruction to output document image data to the image forming unit 23 or an instruction to transmit to an external line by an unregistered user who has stolen the ID or password, and outputs instruction information indicating these. I have something to do. Further, the instruction unit 16 receives an instruction to output the document image data from the external network to the image forming unit 23 or an instruction to transmit the document image data to the external line by a third party impersonating the registered user, and receives instruction information indicating these. May be output.

In that case, the authentication unit 17 may approve the ID or password based on the above instruction information, and output the authentication information indicating that the entered user ID or password is approved.

As shown in FIG. 2, the encryption unit 24 encrypts the document image data and creates the encrypted data before transmitting the document image data to the external line.

Further, the decryption password creation unit 25 creates a decryption password that is associated with the encrypted data and that combines the encrypted data.

The transmission unit 18 transmits the encrypted data and the decryption password to the external line via the line connection unit 10 based on the transmission instruction.

Further, the transmission unit 18 transmits the encrypted data and the decryption password only to the terminal of the pre-registered address via the line connection unit 10 based on the transmission instruction.

The line recovery unit 26 restores the disconnected line to the line connection unit 10 based on the content indicated by the authentication information.

Further, according to the present embodiment, even if the spoofing output instruction is received, the encrypted document image data and the decryption password are transmitted only to the terminal of the registered address, so that the document image of the confidential document is transmitted. Data leakage can be prevented.

Next, the process by the image forming apparatus 100 according to the present embodiment will be described with reference to FIGS. 6 to 9. 6 to 9 are flowcharts showing processing by the image forming apparatus 100 according to the present embodiment.

As shown in FIG. 6, the flowchart includes steps S10 to S34. Specifically, it is as follows.

In step S10 shown in FIG. 6, the line connection unit 10 connects to an external line. The process proceeds to step S12.

In step S12, the data receiving unit 11 receives the document image data or the document image data generated by the reading unit 12 from the line. The process proceeds to step S14. When receiving the document image data generated by the reading unit 12, instead of steps S10 and S12, as shown in FIG. 7, as step S40, the reading unit 12 reads the document D and receives the document image data. Output to unit 11.

In step S14, the registration unit 13 registers the registration keyword 30 or the registration key image 31. The process proceeds to step S16. The registration unit 13 stores the registration keyword 30 or the registration key image 31 in advance, but at this point, the registration unit 13 registers the registration keyword 30 or the registration according to the instruction input to the instruction unit 16 by the user. It is assumed that the key image 31 is stored.

In step S16, the data storage unit 14 stores the document image data received by the data receiving unit 11 or the document image data generated by the reading unit 12. The process proceeds to step S18.

In step S18, the extraction unit 15 extracts the extraction keyword 32 or the extraction key image 33 from the document image data. The process proceeds to step S20.

In step S20, the instruction unit 16 receives an instruction to output the document image data to the external line or an instruction to transmit the document image data to the image forming unit 23, and outputs the instruction information indicating the output instruction or the transmission instruction. The process proceeds to step S22.

In step S22, the user inputs an ID or a password by the instruction unit 16. The process proceeds to step S24.

In step S24, the authentication unit 17 authenticates whether the ID or password is a predetermined formal ID or password based on the information input to the instruction unit 16, and obtains the input user ID or password. Outputs authentication information indicating whether or not to approve. The process proceeds to step S26. The

In step S26, when the authentication information indicates that the input user ID or password is approved, the transmission unit 18 prepares to transmit the document image data to the external line via the line connection unit 10. I do. The process proceeds to step S28. When the instruction authentication information indicates that the input user ID or password is not approved, the transmission unit 18 performs the preparatory process for transmitting the document image data to the external line via the line connection unit 10. Not performed. The process ends at this point.

In step S28, the collation unit 19 collates the registration keyword 30 or the registration key image 31 registered in the registration unit 13 with the extraction keyword 32 or the extraction key image 33 extracted by the extraction unit 15, and the registration keyword 30 or the registration is registered. The collation information indicating whether or not the key image 31 and the extraction keyword 32 or the extraction key image 33 match is output. The process proceeds to step S30.

In step S30, when the collation information indicates that the registration keyword 30 or the registration key image 31 matches the extraction keyword 32 or the extraction key image 33, the output blocking unit 20 transfers the document image data to an external line. The line connection is disconnected by the line connection unit 10 before transmission. The process proceeds to step S32. On the other hand, when the collation information indicates that the registration keyword 30 or the registration key image 31 does not match the extraction keyword 32 or the extraction key image 33, the output blocking unit 20 before transmitting the document image data to the external line. The line connection is kept connected by the line connection unit 10, and the transmission unit 18 transmits the document image data to the external line via the line connection unit 10.

In step S32, when the collation information indicates that the registration keyword 30 or the registration key image 31 and the extraction keyword 32 or the extraction key image 33 match as described above, the reconnection prohibition unit 21 determines. Prohibit reconnection of disconnected lines. The process proceeds to step S34.

The user re-enters the ID or password in the instruction unit 16, the instruction unit 16 outputs authentication information indicating that the input user ID or password is approved to the line recovery unit 26, and the line recovery unit 26 performs the authentication. When the information is received, in step S34, the line restoration unit 26 restores and connects the line disconnected by the line connection unit 10. The transmission unit 18 transmits the document image data prepared for transmission as described above to the external line via the line connection unit 10. That is, when the line is temporarily disconnected and the line recovery unit 26 is in a state of receiving authentication information indicating that the input user ID or password is approved, the transmission unit 18 is as described above. The document image data prepared for transmission is transmitted to an external line via the line connection unit 10. After this, the process ends.

Further, instead of step S30 and step S32, step S50 or step S52 shown in FIG. 8 may be performed. In the case of step S50, in step S50, the output blocking unit 20 of the document image data is based on the collation information indicating that the registration keyword 30 or the registration key image 31 and the extraction keyword 32 or the extraction key image 33 match. The output to the image forming unit 23 is blocked. On the other hand, when the output blocking unit 20 receives the collation information indicating that the registered keyword 30 or the registered key image 31 and the extracted keyword 32 or the extracted key image 33 do not match, the output blocking unit 20 transmits the document image data to the image forming unit 23. The image forming unit 23 forms an image on the print medium based on the document image data (step S52).

Further, instead of steps S30 and S32, the processes of steps S60, S62, and S70 shown below may be performed. The output blocking unit 20 indicates that the registration keyword 30 or the registration key image 31 matches the extraction keyword 32 or the extraction key image 33 when the ID or password is approved by the authentication unit 17. The transmission of the document image data is prohibited by disconnecting the connection of the line by the line connection unit 10 before the transmission by the transmission unit 18. At this time, as shown in FIG. 9, in step S60, the encryption unit 24 encrypts the document image data based on the authentication information before transmitting the document image data to the external line, and creates the encrypted data. The process proceeds to step S62.

In step S62, the decryption password creation unit 25 creates a decryption password for decrypting the encrypted data in association with the encrypted data. The process proceeds to step S70.

As shown in FIG. 9, in step S70, the transmission unit 18 transmits the above-created encrypted data and decryption password only to the terminal of the registered address via the line connection unit 10.

The embodiment of the present invention has been described above with reference to the drawings. However, the present invention is not limited to the above-described embodiment, and can be implemented in various embodiments without departing from the gist thereof. The drawings are schematically shown mainly for each component for easy understanding, and the thickness, length, number, etc. of each of the illustrated components are different from the actual ones for the convenience of drawing creation. .. Further, the material, shape, dimensions, etc. of each component shown in the above embodiment are merely examples, and are not particularly limited, and various changes can be made without substantially deviating from the effects of the present invention. be.

The present invention can be used in the field of a terminal device and an image forming device connected to the terminal device.

Claims

Registration department for registering registration keywords or registration key images, and
A data storage unit that stores document image data,
An extraction unit that extracts an extraction keyword or an extraction key image from the document image data,
The extraction key image and the registration keyword or the registration key are collated with the extraction keyword or the extraction key image extracted by the extraction unit and the registration keyword or the registration key image registered in the registration unit. A collation unit that outputs collation information indicating the collation result of whether or not the image matches, and a collation unit.
An image forming apparatus including an output blocking unit that permits or prohibits the output of the document image data based on the collation information.
The line connection part that connects to the external line,
A transmission unit that transmits the document image data via the line connection unit is further provided.
When the collation information indicates that the extracted key image matches the registered keyword or the registered key image, the output blocking unit makes a line connection to the line connecting unit before transmission by the transmitting unit. The image forming apparatus according to claim 1, wherein the output of the document image data is prohibited by disconnecting.
An image forming unit for forming an image on a print medium based on the document image data is further provided.
The output blocking unit blocks the output of the document image data to the image forming unit when the collation information indicates that the extracted key image matches the registered keyword or the registered key image. The image forming apparatus according to claim 1, which prohibits the output of the document image data.
The line connection part that connects to the external line,
The image forming apparatus according to claim 1, further comprising a data receiving unit for receiving the document image data from the external line.
The image forming apparatus according to claim 1, further comprising a reading unit that reads a document and generates the document image data.
The output blocking unit is further provided with an instruction unit that receives the output instruction of the document image data and outputs the output instruction.
The image forming apparatus according to claim 1, wherein the output blocking unit controls to allow or prohibit the output of the document image data based on the collation information when the output instruction is received from the instruction unit.
It also has an authentication unit that authenticates IDs or passwords and outputs authentication information.
The image forming according to claim 1, wherein the output blocking unit controls to allow or prohibit the output of the document image data based on the collation information when the ID or password is approved by the authentication unit. Device.
Further, an output unit that outputs the document image data from the data storage unit to the image forming unit when the collation information indicates that the extracted key image does not match the registered keyword or the registered key image. The image forming apparatus according to claim 3.
An encryption unit that encrypts the document image data and creates encrypted data before transmitting the document image data,
A decryption password creation unit that creates a decryption password that decrypts the encrypted data by associating it with the encrypted data.
Further, a transmission unit for transmitting the document image data via the line connection unit is provided.
When the transmitting unit indicates that the extracted key image matches the registered keyword or the registered key image even when the ID or password is approved by the authentication unit. Prohibits the output of the document image data by disconnecting the line connection before transmission by the transmission unit, and the encrypted data and the decryption password are pre-registered addresses via the line connection unit. The image forming apparatus according to claim 2, which transmits only to the terminal of the above.
Based on the content indicated by the authentication information, the line connection unit is further provided with a line recovery unit that restores the disconnected line.
When the line is disconnected by the line connection unit and the line recovery unit receives the authentication information indicating that the input user ID or password is approved, the line recovery unit will receive the authentication information. The image forming apparatus according to claim 2, wherein the line is restored and connected by the line connection unit, and the transmission unit transmits the document image data to an external line via the line connection unit.