Image Processing Device

Abstract

To provide an image processing device that restores a network at the appropriate timing even in a remote work environment where an administrator is not nearby after shutting down the network by detecting fraud.SOLUTION: An image processing device includes communication means that communicates with the outside, fraud detection means that detects fraud in a device, communication blocking means that blocks communication by means of communication when fraud is detected, notification means that has a communication path different from that of the communication means, and notifies a predetermined address when fraud is detected, receiving means that has a communication path different from that of the communication means and receives communication restoration trigger information, and communication recovery means that recovers communication by the communication means on the condition that the trigger information is received by the receiving means.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to an image processing device that prevents the spread of security threats such as computer viruses. [Background technology]

[0002] From a security perspective, multifunction peripherals (MFPs) are increasingly being equipped with virus scanning functions for software and data stored in the devices. Since multifunction peripherals are often connected to other multifunction peripherals and terminals via a network, there is a risk that a virus infection could spread from a single multifunction peripheral. To prevent the spread of such security threats, a multifunction peripheral has been disclosed that cuts off its connection to the network if a virus is detected (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-206750 Summary of the Invention [Problem to be solved by the invention]

[0004] In a multifunction device that is shared by multiple users, an administrator is generally designated, and recovery from a network outage is carried out by the administrator.

[0005] In recent years, remote work has become common, and the administrator is not necessarily located near the multifunction peripheral, but may be located away from the location where the multifunction peripheral is set up.

[0006] If the network connection of a multifunction device is cut off in such a remote work environment, it takes time to restore the network connection, and during that time the multifunction device becomes unusable, which is a problem.

[0007] This problem also exists in image processing devices other than multifunction peripherals, such as printers and scanners, that have other network functions.

[0008] The present disclosure has been made in consideration of the above-mentioned problems, and aims to provide an image processing device that can shut down the network by detecting fraud such as a virus, and then restore the network at an appropriate time even in a remote work environment where an administrator is not nearby. [Means for solving the problem]

[0009] The image processing device according to one aspect of the present disclosure is Through the network An image processing device comprising a communication means for communicating and a fraud detection means for detecting fraud within the device, and cutting off communication by the communication means when fraud is detected, and notifying the fact when fraud is detected. Not connected to the network The communication means and the communication path are different. and is not connected to the network. A notification means receives trigger information for communication restoration, and the communication means and the communication path are different. and is not connected to the network. a receiving means; and a communication control means for restoring communication by the communication means with reception of trigger information by the receiving means as a starting condition. The fraud detection means has a function of eliminating the detected fraud when the communication is interrupted, and the communication control means restores communication by the communication means when the trigger information is received and the elimination of the detected fraud is completed. .

[0010] In the image processing device, the communication means may perform communication via a LAN, and the notification means may perform communication via a telephone line.

[0011] Also, An image processing device according to another aspect of the present disclosure includes a communication means for communicating with the outside and a fraud detection means for detecting fraud within the device, and cuts off communication by the communication means when fraud is detected. The image processing device includes a notification means for notifying a predetermined destination of the detection of fraud, and a receiving means for receiving trigger information for restoring communication, and the notification means has a communication path different from that of the communication means, and a communication control means for restoring communication by the communication means when the reception means receives the trigger information, and the communication means communicates via a LAN, The notification means , communicate via telephone lines, The administrator of the image processing device notifies the fax receiving device used by the administrator of the image processing device by facsimile communication. R .

[0012] In the image processing device, the notification means may notify a mobile terminal used by an administrator of the image processing device by short message service.

[0013] In the image processing device, the notification means may transmit a command to notify that fraud has been detected to an information processing terminal used by a service engineer who performs maintenance and management work for the image processing device.

[0014] In the image processing device, the communication means may perform communication via a LAN, and the receiving means may perform communication via a telephone line.

[0015] Also, An image processing device according to yet another aspect of the present disclosure is an image processing device that includes a communication means for communicating with the outside and a fraud detection means for detecting fraud within the device, and that blocks communication by the communication means when fraud is detected, and includes a notification means, which notifies a predetermined destination when fraud is detected, and has a communication path different from that of the communication means, a receiving means, which receives trigger information for communication restoration and has a communication path different from that of the communication means, and a communication control means, which restores communication by the communication means using reception of the trigger information by the receiving means as a starting condition, and the communication means communicates via a LAN, The receiving means , communicate via telephone lines, The sender receives a fax document from a fax sending device used by an administrator of the image processing device as the trigger information. R .

[0016] In the image processing device, the receiving means may receive, as the trigger information, a short message sent from a mobile terminal used by an administrator of the image processing device.

[0017] In the image processing device, the receiving means may receive, as the trigger information, a command to perform recovery from an information processing terminal used by a service engineer who performs maintenance and management work for the image processing device.

[0018] In the image processing device, the communication means may perform communication via a LAN, and the receiving means may perform communication by short-range wireless communication.

[0019] In the image processing device, the receiving means may receive, as the trigger information, a command to perform recovery from a terminal equipped with a short-range wireless communication function.

[0020] In addition, in the above-mentioned image processing device, the fraud detection means may have a function of eliminating detected fraud, and the notification means may notify the specified destination that the fraud has been eliminated after the fraud detected by the fraud detection means has been eliminated.

[0021] In addition, in the above-mentioned image processing device, the notification means may notify the specified destination that fraud has been detected, along with information about users who operated the image processing device within a specified period before the fraud was detected.

[0022] In addition, in the above-mentioned image processing device, the notification means may notify the specified destination that fraud has been detected, along with information about devices that communicated with the image processing device during a specified period before the fraud was detected. [Effects of the Invention]

[0023] According to the present disclosure, the network is restored by notifying a predetermined destination (for example, an administrator) that fraud has been detected and receiving trigger information that instructs the network to be restored. The administrator can restore the network of the multifunction device even if they are not near the multifunction device by checking the virus infection status of the multifunction device and other terminals and sending trigger information at an appropriate time, such as after the virus has been removed. [Brief explanation of the drawings]

[0024] [Figure 1] FIG. 1 is a diagram showing an example of the configuration of an image processing device 11 and its peripheral system. [Figure 2] FIG. 2 is a block diagram showing the functional configuration of the image processing device 11. [Figure 3] 10 is a flowchart showing a virus detection and removal process performed by the image processing device 11. [Figure 4] 10 is a flowchart showing a network recovery process of the image processing device 11. [Figure 5] This is an example of a fax document indicating that a virus has been detected. [Figure 6] 10 is an example of a fax document notifying users who operated the image processing device 11 during a predetermined period before a virus was detected. [Figure 7] 10 is an example of a fax document notifying devices that have communicated with the image processing device 11 during a predetermined period before a virus was detected. [Figure 8] 8A is an example of device information 801 stored in fixed storage device 130. FIG. 8B is an example of job history information 802 stored in fixed storage device 130. DETAILED DESCRIPTION OF THE INVENTION

[0025] The image processing device 11 according to the present disclosure will be described below with reference to the drawings. [1] Configuration of the image processing device 11 and its peripheral system FIG. 1 is a diagram showing an example of the configuration of an image processing device 11 and its peripheral system according to the present disclosure.

[0026] An image processing device 11, an information processing terminal 12, and an information processing terminal 13 are installed at a base 10 within an office. The image processing device 11, the information processing terminal 12, and the information processing terminal 13 are each connected via a network 15. The image processing device 11 and the information processing terminal 13 are also connected via a network 16, the image processing device 11 is connected to a telephone line 50, and the network 15 is connected to an external network 40.

[0027] The network 15 may be, for example, a LAN (Local Area Network) using a wired Ethernet (registered trademark) cable, or may be a wireless network. The network 15 connects various devices using, for example, the TCP / IP protocol, and allows various data to be exchanged between them.

[0028] The network 16 is a wireless communication network conforming to the Bluetooth (registered trademark) standard, and allows various data to be exchanged between connected terminals in accordance with corresponding profiles.

[0029] The external network 40 is the Internet, which connects terminals between distant locations and enables the exchange of various data.

[0030] The telephone line 50 is an information transmission path that allows various types of data such as sound (telephone), images (fax), and text information (short message service) to be exchanged between devices connected to the telephone line 50, and has a route different from that of the external network 50.

[0031] The image processing device 11 is a multifunction device having copy, print, fax, and scan functions. The image processing device 11 also has a network function for connecting to a network 15, and can exchange information with information processing terminals 12 and 13 connected to the network 15. For example, the image processing device 11 receives a print instruction from the information processing terminals 12 and 13, and executes a print job in accordance with the received print instruction. The image processing device 11 also designates the information processing terminals 12 and 13 connected to the network 15 as scan destinations, and transmits image data resulting from scanning a document to the designated destinations.

[0032] The information processing devices 12 and 13 are PCs (Personal Computers) that can instruct the image processing device 11 to print and can specify them as scan destinations.

[0033] The image processing device 11 and the information processing terminal 13 have a Bluetooth communication function, and can exchange dedicated commands not only via the network 15 but also via the network 16 .

[0034] An information processing terminal 21, a mobile terminal 22, and a facsimile machine 23 are installed at a remote work location 20 such as the administrator's home.

[0035] The information processing terminal 21 is connected to an external network 40, and can exchange various data with the image processing device 11 and the information processing terminals 12 and 13 via the external network 40 and the network 15. In addition, the information processing terminal 13 has a remote desktop server function, and the information processing terminal 21 has a remote desktop client function, so that the information processing terminal 13 can be remotely controlled from the information processing terminal 21.

[0036] The mobile terminal 22 is connected to a telephone line 50 and can receive text data from the image processing device 11 via short message service.

[0037] The facsimile device 23 is connected to a telephone line 50 and is capable of receiving image data from the image processing device 11 via facsimile communication.

[0038] An information processing terminal 31 is installed at a base 30 of a service engineer who performs maintenance management of the image processing device 11. The information processing terminal 31 is connected to an external network 40, and is capable of exchanging various data with the image processing device 11 via the external network 40 and the network 15. The information processing terminal 31 is also connected to a telephone line 50, and is capable of exchanging various data with the image processing device 11 via the telephone line 50 as well. This allows the information processing terminal 31 to communicate with the image processing device 11 using dedicated commands when a problem occurs with the image processing device 11 or when consumables need to be replaced, and the status can be confirmed using commands from the information processing terminal 31. [2] Configuration of image processing device 11 2 is a block diagram showing the functional configuration of the image processing device 11. The image processing device 11 includes a control unit 110, an operation panel 120, a fixed storage device 130, a scanner unit 140, a printer unit 150, an image processing unit 160, a network communication unit 170, a telephone line communication unit 180, and a Bluetooth communication unit 190.

[0039] The control unit 110 is composed of a CPU, RAM, ROM, etc., and controls the operation of the image processing device 11 by the CPU loading a control program stored in the ROM into the RAM and executing it. The control unit 110 controls the copy, print, fax, and scan functions, for example, by executing the control program. The control unit 110 also realizes a virus scan function that performs a virus scan, a virus removal function that removes viruses, and a communication control function that controls the interruption of communication with the network 15 and recovery from the interruption.

[0040] Operation panel 120 includes display unit 122 that displays various information and operation unit 121 that accepts various operations. Display unit 122 is configured with a liquid crystal display or the like, and displays various screens such as an operation screen, a setting screen, a confirmation screen, and a notification screen. Operation unit 121 is configured with various buttons such as a mode selection key for selecting an operation mode (such as a copy mode for copying or a scan mode for scanning), a start key for accepting job execution, a stop key for stopping job execution, and a numeric keypad for entering numbers, as well as a touch panel provided on the surface of display unit 122, and accepts various operations performed by a user on image forming apparatus 11.

[0041] Fixed storage device 130 is, for example, a semiconductor memory or a hard disk drive that retains its memory even when the power is turned off, and stores display data for various screens to be displayed on display unit 122. It also stores the administrator's fax destination (fax number of facsimile device 23) and short message destination (telephone number of mobile terminal 22), etc.

[0042] Fixed storage device 130 also stores image data obtained by reading a document during scanning or copying, print data (image data) included in a print job received from information processing terminals 12 and 13, and facsimile data (image data) received via telephone line 50. It also stores a virus definition file used in virus scanning and a virus detection history generated as a result of the virus scanning.

[0043] The fixed storage device 130 also stores device information 801 indicating device-specific information of the image processing device 11 and setting information set in the image processing device 11, and job history information 802 indicating the execution history of each copy, print, and scan job executed by the image processing device 11.

[0044] 8A shows an example of device information 801. As shown in the figure, the device information 801 includes the setting location, IP address, serial number, and device name of the image processing device 11.

[0045] 8(b) shows an example of job history information 802. As shown in the figure, the job history information 801 includes the type of job executed (copy, print, scan) and the execution time. Furthermore, for jobs executed by the image processing device 11, if the user executed the job by operating the image processing device 11 (operation panel 120), the job history information 801 also includes the user name. The user name is identified by, for example, comparing the authentication information entered by the user with authentication information stored in the image forming device for verification. Furthermore, if communication with an external device was performed during the execution of the job, the job history information 801 also includes the device name and IP address of the communication partner.

[0046] 2, scanner unit 140 includes a document table (not shown) and optically reads a document placed on the document table to obtain image data. Scanner unit 140 includes, for example, a light source that irradiates the document with light, a line image sensor that receives the reflected light and reads the document one line in the width direction, a moving means that sequentially moves the reading position in line units in the length direction of the document, an optical path made up of lenses and mirrors that guide the reflected light from the document to the line image sensor to form an image, and a conversion unit that converts an analog image signal output from the line image sensor into digital image data.

[0047] Printer unit 150 forms and outputs an image based on image data on recording paper using an electrophotographic process. Printer unit 150 is configured as a so-called laser printer, having, for example, a recording paper transport device, a photosensitive drum, a charging device, an LD (Laser Diode) whose lighting is controlled according to input image data, a scanning unit that scans the photosensitive drum with laser light emitted from the LD, a developing device, a transfer / separation device, a cleaning device, and a fixing device. It may be an LED printer that irradiates the photosensitive drum with an LED (Light Emitting Diode) instead of laser light, or another type of printer.

[0048] The image processing unit 160 performs rasterization processing on the print data (print data in vector format) received from the information processing terminals 12 and 13, and performs various image processing on the image data, such as image correction, rotation, enlargement / reduction, and compression / expansion.

[0049] The network communication unit 170 is a network interface connectable to the network 15, and communicates with external devices such as the information processing terminals 12 and 13 via the network 15. For example, it accepts image data as a print job and transmits image data as a scan job.

[0050] The telephone line communication unit 180 transmits and receives image data to and from a facsimile device 23 equipped with a facsimile function via a telephone line 50. It is also capable of transmitting and receiving short messages to and from a mobile terminal 22. It is also capable of transmitting and receiving dedicated commands to and from a service engineer's information processing terminal 31 when a problem occurs or when consumables need to be replaced.

[0051] The Bluetooth communication unit 190 is capable of transmitting and receiving dedicated commands via the network 16 to and from an external device equipped with a Bluetooth function. [3] Operation of the image processing device 11 FIG. 3 shows a processing flow of virus detection and removal performed by the image processing device 11.

[0052] When the image processing device 11 receives a print job from the information processing terminal 12, 13, when it sends a scan job to the information processing terminal 12, 13, or at a timing set by an administrator, the image processing device 11 uses its virus scan function to perform a virus scan on the received image data, the image data to be sent, and the data stored in the fixed storage device 130 (step S11).

[0053] If a virus is detected in step S11, communication via the network 15 is blocked to prevent the spread of virus infection (step S12). Communication via the network 15 can be blocked by disabling the NIC (Network Interface Card) of the network communication unit 170 to create a state similar to that in which the connection at layer 1 (physical layer) is cut off, or by stopping packet transmission by the network communication unit 170.

[0054] Next, the fact that a virus has been detected is notified to a predetermined external device via a telephone line (step S13).

[0055] As an example of a notification of a virus detection, a text message indicating that a virus has been detected and a fax document (image data) 501, an example of which is shown in FIG. 5, may be generated based on device information 801 stored in fixed storage device 130, and the generated fax document 501 may be sent by facsimile communication to the administrator's facsimile device 23.

[0056] Alternatively, text data having the same content as the fax document 501 may be generated, and the generated text data may be sent as a short message to the mobile terminal 22 of the administrator.

[0057] Alternatively, a dedicated command may be sent to the service engineer's information terminal 31 to notify that a virus has been detected, and the service engineer may then notify the administrator by some means (telephone, fax, email, etc.). The notification to the service engineer may include device information, or it may be assumed that the service engineer has device information stored in advance. In either case, the notification is sent so that the administrator knows which device has detected the virus.

[0058] In step S13, information about the operator of the image processing device 11 may be further notified to the administrator.

[0059] As an example of notifying the operator's information, a fax document (image data) 601 may be generated based on the job history information 802 stored in the fixed storage device 130, and the generated fax document 601 may be sent by facsimile communication to the administrator's facsimile device 23.

[0060] 6 is an example of a fax document 601 that contains information about the operator of the image processing device 11 that detected a virus. As shown in the figure, the document contains information about the operator who operated the image processing device 11 during a specified period before the virus was detected. By transmitting this information to an administrator, the administrator can instruct users who may be infected with a virus to check their own devices for viruses. This allows the administrator to instruct the image processing device 11 to be unblocked from the network (network recovery) after confirming that devices surrounding the image processing device 11 are not infected with a virus.

[0061] In step S13, information about the device with which the image processing device 11 is communicating may be further notified to the administrator.

[0062] As an example of notifying information about the communication partner device, information about the job that communicated with the image processing device 11 may be extracted from the job history information 802 stored in the fixed storage device 130 to generate a fax document (image data) 701, and the generated fax document 701 may be sent by facsimile communication to the administrator's facsimile device 23.

[0063] 7 is an example of a fax document 701 that contains information about devices with which the image processing device 11 that detected a virus communicated. As shown in the figure, the document contains device information (device name and device IP address) about devices with which the image processing device 11 communicated during a predetermined period of time before the virus was detected. By transmitting this information to an administrator, the administrator can instruct the user who owns the device to perform a virus check on the device based on the information about devices that may be infected with a virus. This allows the administrator to instruct the image processing device 11 to be unblocked from the network (network recovery) after confirming that devices surrounding the image processing device 11 are not infected with a virus.

[0064] After the notification in step S13, the image processing device 11 performs virus removal (step S14), and after the virus removal is completed, notifies a predetermined external device (mobile terminal 22, facsimile communication 23, information processing terminal 31) that the virus removal has been completed via the telephone line 50, which is a communication path different from the communication using the network communication unit 170 (step S15).

[0065] FIG. 4 shows a processing flow for unblocking the network (recovering the network) of the image processing device 11.

[0066] After the network is shut down, the image processing device 11 waits for trigger information for network recovery from an external device (step S21). If the trigger information for network recovery is received (step S21: Yes), it checks whether virus removal has been completed (step S22). If virus removal has been completed (step S22: Yes), it restores the network (cancels the shutdown state) (step S23). Restoration of communication via the network 15 is achieved by enabling the NIC or resuming packet transmission, which is the opposite of shutting down.

[0067] If the virus removal is not complete (step S22: No), the external device (for example, the mobile terminal 22, the facsimile machine 23, the information processing terminal 31) is notified via the telephone line that the virus removal is in progress (step S24).

[0068] Here, an example of receiving trigger information is receiving a fax document whose sender is the administrator (facsimile device 23). If the sender of the received fax document is the administrator, it may be considered that trigger information has been received, regardless of the content of the fax document.

[0069] Another example of receiving trigger information is receiving a short message sent from the administrator (mobile terminal 22). In this case, if the sender of the received short message is the administrator, it may be considered that trigger information has been received, regardless of the content of the short message.

[0070] Another example of receiving trigger information is receiving a network recovery command from the service engineer's information processing terminal 31. In this case, it is assumed that a recovery request has been sent to the service engineer by some means from the administrator.

[0071] Another example of receiving trigger information is when a recovery command is received over network 16 from information processing terminal 13 equipped with a Bluetooth function. In this case, an administrator remotely accesses information processing terminal 13 equipped with a Bluetooth function near the image forming apparatus using a remote desktop function or the like, and issues a recovery instruction for the image forming apparatus via information processing terminal 13 equipped with a Bluetooth function. In either case, the trigger information is received over a communication path different from the communication via network communication unit 170.

[0072] By operating according to the above processing flow, the image processing device 11 notifies a predetermined destination (for example, an administrator or a service engineer) that fraud has been detected, and restores the network after receiving trigger information instructing the network to be restored. The administrator can restore the network of the image processing device 11 at an appropriate time even if he is not near the image processing device 11 by checking the virus infection status of the image processing device 11 and the information processing terminals 12 and 13, and sending trigger information after the virus has been removed from the image processing device 11 and after it has been confirmed that the information processing terminals 12 and 13 are not infected. [4] Other The present disclosure has been described above based on the embodiments, but it goes without saying that the present disclosure is not limited to the above-described embodiments, and the following modified examples can be implemented.

[0073] (1) In the above embodiment, the image processing device 11 is described as a multifunction peripheral, but the present invention can be implemented in an image processing device other than a multifunction peripheral such as a printer or scanner. Furthermore, the present invention can also be implemented in an information processing device other than an image processing device, such as a server device, which is shared by multiple people and has an administrator.

[0074] (2) In the above-described embodiment, the image processing device 11 notifies the administrator or service engineer of a virus infection through communication via the telephone line communication unit 180. This is merely an example of communication via the telephone line communication unit 180, which carries a lower risk of spreading virus infection compared to communication via the normal network communication unit 170, and is not limited to this, as long as the communication carries a lower risk of spreading virus infection. For example, a dedicated communication path may be provided between the image processing device 11 and the administrator's information processing terminal 21 or the service engineer's information processing terminal 31, and notification may be made using a dedicated command via this communication path.

[0075] (3) In the above-described embodiment, the image processing device 11 receives trigger information for network recovery from an administrator or a service engineer via communication via the telephone line communication unit 180 or communication via the Bluetooth communication unit 190. This is merely an example of communication via the telephone line communication unit 180 or the Bluetooth communication unit 190, which has a lower risk of spreading virus infection compared to communication via the normal network communication unit 170. However, this is not limited to this, as long as the communication has a lower risk of spreading virus infection. For example, a dedicated communication path may be provided between the image processing device 11 and the administrator's information processing terminal 21 or the service engineer's information processing terminal 31, and dedicated commands may be received using this communication path. [Explanation of symbols]

[0076] 11 Image processing device 12 Information processing terminal 13 Information processing terminal 21 Information processing terminal 22 Mobile devices 23 Facsimile machine 31 Information processing terminal

Claims

1. An image processing device comprising a communication means for communicating with an external device via a network and a fraud detection means for detecting fraud within the device, and cutting off communication by the communication means when fraud is detected, a notification means, which, when fraud is detected, notifies a predetermined destination that is not connected to the network, and which has a communication path different from that of the communication means and is not connected to the network; a receiving means for receiving trigger information for communication restoration, the receiving means having a communication path different from that of the communication means and not connected to the network; a communication control means for restoring communication by the communication means using the reception of trigger information by the reception means as a starting condition; Equipped with the fraud detection means has a function of eliminating the detected fraud when the communication is interrupted, When the trigger information is received, if the removal of the detected fraud is completed, the communication control means restores communication by the communication means. Image processing device.

2. The communication means communicates via a LAN, The notification means communicates via a telephone line. The image processing device according to claim 1 .

3. An image processing device comprising a communication means for communicating with an external device and a fraud detection means for detecting fraud within the device, and cutting off communication by the communication means when fraud is detected, a notification means for notifying a predetermined destination when fraud is detected, the notification means having a communication path different from that of the communication means; a receiving means for receiving trigger information for communication restoration, the receiving means having a communication path different from that of the communication means; a communication control means for restoring communication by the communication means using the reception of trigger information by the reception means as a starting condition; Equipped with The communication means communicates via a LAN, The notification means communicates via a telephone line and notifies a fax receiving device used by an administrator of the image processing device by facsimile communication. Image processing device.

4. The notification means notifies the administrator of the image processing device by a short message to a mobile terminal used by the administrator. The image processing device according to claim 2 .

5. The notification means transmits a command to notify that fraud has been detected to an information processing terminal used by a service engineer who performs maintenance and management work for the image processing device. The image processing device according to claim 2 .

6. The communication means communicates via a LAN, The receiving means communicates via a telephone line. The image processing device according to claim 1 .

7. An image processing device comprising a communication means for communicating with an external device and a fraud detection means for detecting fraud within the device, and cutting off communication by the communication means when fraud is detected, a notification means for notifying a predetermined destination when fraud is detected, the notification means having a communication path different from that of the communication means; a receiving means for receiving trigger information for communication restoration, the receiving means having a communication path different from that of the communication means; a communication control means for restoring communication by the communication means using the reception of trigger information by the reception means as a starting condition; Equipped with The communication means communicates via a LAN, The receiving means communicates via a telephone line and receives a fax document from a fax sending device used by an administrator of the image processing device as the trigger information. Image processing device.

8. The receiving means receives a short message from a mobile terminal used by an administrator of the image processing device as the trigger information. The image processing device according to claim 6 .

9. The receiving means receives, as the trigger information, a command to perform recovery from an information processing terminal used by a service engineer who performs maintenance and management work for the image processing apparatus. The image processing device according to claim 6 .

10. The communication means communicates via a LAN, The receiving means communicates by short-range wireless communication. The image processing device according to claim 1 .

11. The receiving means receives a command to perform recovery from a terminal equipped with a short-range wireless communication function. Received as the trigger information The image processing device according to claim 10.

12. After the fraud detected by the fraud detection means is eliminated, the notification means notifies the predetermined destination that the fraud has been eliminated. The image processing device according to claim 1 .

13. The notification means notifies the predetermined destination that fraud has been detected, as well as information about users who operated the image processing device during a predetermined period before the fraud was detected. The image processing device according to claim 1 .

14. The notification means notifies the predetermined destination that fraud has been detected, along with information about devices that have communicated with the image processing device during a predetermined period before the fraud was detected. The image processing device according to claim 1 .

Images