JP2012090014A - Compound machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compound machine capable of automatically changing over to an operation screen corresponding to requested image input/output processing when a mode is shifted to a normal power mode by a request from an external part.SOLUTION: A compound machine includes: a display part for performing changeover display on multiple operation screens associated with mutually different kinds of image input/output processing; a mode control part for changing over an operation mode into a normal power mode or a power saving mode; an operation part for receiving a user operation; and a request signal reception part for receiving a request signal to instruct the execution of the image input/output processing via a communication network. The mode control part performs changeover to the normal power mode when the user operation or the request signal is received during the power saving mode. The display part performs changeover to the operation screen associated with the image input/output processing designated by the request signal when the request signal is received during the power saving mode, but does not change over the operation screen being displayed when the request signal is received during the normal power mode.

Description

  The present invention relates to a multifunction peripheral, and more particularly, to an improvement of a multifunction peripheral that switches and displays a plurality of operation screens associated with different image input / output processes.

  There is a multi-function peripheral having a PC print function for printing image data received from a PC on a sheet in accordance with an instruction from a PC (personal computer) connected via a LAN (local area network). There is also a multi-function machine having a PC-FAX (facsimile) transmission function for transmitting image data received from a PC to a predetermined transfer destination via a PSTN (public telephone network) in accordance with an instruction from the PC.

  In recent years, further power saving has been demanded for such multifunction devices. Therefore, it is possible to switch between the normal power mode and the power saving mode in which the power consumption is reduced compared to the normal power mode. Switching techniques have been proposed (for example, Patent Documents 1 and 2). In the power saving mode, power supply to a printing unit that prints image data, a FAX transmission unit that transmits image data to the outside, and a display unit that displays an operation state on a screen is cut off. If a predetermined event such as a user operation or a print request from the PC is received during the power saving mode, the operation mode is switched to the normal power mode.

  In a conventional multi-function peripheral, an operation screen for a preset processing mode is displayed when shifting to the normal power mode. For example, if the copy mode is set as the processing mode when shifting to the normal power mode, an operation screen for the copy mode is displayed on the display unit when shifting to the normal power mode. In this case, if the mode is switched to the normal power mode in response to a print request from the PC, an operation screen in a processing mode different from the image processing designated from the PC is displayed. For this reason, in order to stop the execution of the image processing instructed from the PC, it is necessary to switch to an operation screen in a processing mode corresponding to the image processing, and there is a problem that operability is not good.

JP 2001-282398 A JP 2008-205714 A

  The present invention has been made in view of the above circumstances, and automatically switches to an operation screen corresponding to the image input / output processing specified by the request signal when the normal power mode is entered by the request signal from the outside. An object of the present invention is to provide a multifunction device capable of performing the above. In particular, it is an object of the present invention to provide a multi-function machine that can improve the convenience when shifting to the normal power mode based on an external request signal without impairing the convenience during the normal power mode. It is another object of the present invention to provide a multi-function machine that can easily stop execution of image input / output processing instructed by a request signal.

  According to a first aspect of the present invention, there is provided a multi-function peripheral comprising a display unit for switching and displaying two or more operation screens associated with different image input / output processes, a normal power mode, and a power consumption of the display unit for the normal power. A mode control unit that switches the operation mode to one of the power saving modes reduced from the mode, an operation unit that receives a user operation, and any one of the image input / output processes via a communication network, and the image A request signal receiving unit that receives a request signal instructing execution of input / output processing, and when the mode control unit receives either the user operation or the request signal in the power saving mode, the operation mode is When a certain period of time has elapsed without accepting the user operation and the request signal in the normal power mode after switching to the normal power mode When the operation mode is switched to the power saving mode and the display unit receives the request signal during the power saving mode, the operation screen associated with the image input / output processing specified by the request signal is displayed. On the other hand, even if the request signal is received during the normal power mode, the displayed operation screen is not switched.

  Even if a request signal is received during the normal power mode, this multifunction device does not switch the displayed operation screen, and if the request signal is received during the power saving mode, it supports the image input / output processing specified by the request signal. The operation screen can be automatically switched to. For this reason, if a request signal is transmitted from an external terminal device in the power saving mode, the screen is automatically switched to the operation screen corresponding to the image input / output processing specified by the request signal, so that the normal power mode based on the request signal is entered. Convenience at the time of migration can be improved. On the other hand, since the operation screen is not switched by the request signal in the normal power mode, the convenience of the user who is trying to operate the multifunction device is not impaired.

  In the multifunction machine according to the second aspect of the present invention, in addition to the above-described configuration, the operation unit includes a contact sensor formed on the screen of the display unit, and configures a touch panel together with the display unit. The operation button symbol is included.

  In general, in the case of a touch panel, switching the operation screen may change not only the display of the operation button but also the operation method and operation content of the operation button. For this reason, the convenience can be greatly improved by automatically switching the operation screen according to the request signal in the power saving mode while avoiding inadvertent switching of the operation screen.

  In the multifunction machine according to the third aspect of the present invention, in addition to the above-described configuration, the operation screen is provided with a stop button for stopping the execution of the image input / output process associated with the operation screen as the operation button. Configured to be.

  According to such a configuration, the execution of the image input / output process instructed by the request signal is canceled by operating the cancel button in the operation screen automatically switched by the request signal in the power saving mode. Can do. Therefore, the user can cancel the execution of the image input / output process requested from the external terminal device without switching the operation screen.

  In the multifunction machine according to the fourth aspect of the present invention, in addition to the above configuration, the image input / output process includes a printing process for printing image data on a paper medium, a facsimile transmission process for transmitting image data to the outside, and an image from a paper medium. It is configured to be at least two or more of the scanning processes for optically reading data.

  In the MFP according to the present invention, when a request signal is transmitted from an external terminal device in the power saving mode, the operation screen is automatically switched to an image input / output process designated by the request signal. Convenience at the time of shifting to the normal power mode can be improved. On the other hand, since the operation screen is not switched by the request signal in the normal power mode, the convenience of the user who is trying to operate the multifunction device is not impaired. Therefore, when the normal power mode is entered by a request signal from the outside, it is possible to automatically switch to the operation screen corresponding to the image input / output processing specified by the request signal, which impairs convenience in the normal power mode. Therefore, the convenience at the time of shifting to the normal power mode based on the request signal from the outside can be improved. Further, since the requested image input / output process can be stopped without switching the operation screen, the execution of the image input / output process instructed by the request signal can be easily stopped.

1 is a system diagram illustrating a configuration example of an image processing system 1 including a multifunction peripheral according to an embodiment of the present invention. FIG. 2 is a block diagram illustrating a configuration example of an MFP 12 in the image processing system 1 of FIG. 1. 3 is a diagram illustrating an example of the operation of the MFP 12 of FIG. 2, and shows operation screens 41 and 51 displayed when the PC 11 returns to the normal power mode in response to an activation request. 3 is a diagram illustrating an example of the operation of the MFP 12 of FIG. 2, and shows operation screens 61 and 71 displayed when the PC 11 returns to the normal power mode in response to an activation request. 3 is a flowchart showing an example of the operation of the MFP 12 of FIG.

<Image processing system>
FIG. 1 is a system diagram showing a configuration example of an image processing system 1 including a multi-function peripheral according to an embodiment of the present invention. The image processing system 1 includes a PC 11 and an MFP 12 connected to each other via a LAN 2, and the MFP 12 executes image data input processing or output processing according to an instruction from the PC 11.

  The LAN 2 is a communication network for transmitting and receiving data between a plurality of electronic devices arranged in a predetermined area, and data is transmitted and received by a predetermined communication control method such as Ethernet (registered trademark). Data transmitted / received via the LAN 2 is packetized based on a predetermined communication protocol, for example, TCP / IP (Transmission Control Protocol / Internet Protocol), and transferred as an IP packet.

  The PC 11 is an information processing terminal having a display unit and an operation unit, and creates document data and the like. An MFP (Multifunction Peripheral) 12 is a communication terminal having a scanner function, a printer function, a FAX transmission / reception function, a copying function, and the like, and can selectively execute these functions.

  The MFP 12 has a PC print function, a PC-FAX transmission function, and a PC scan function. An operation panel includes a display 121 for displaying an operation state on a screen and a plurality of operation keys such as a start key and a stop key. The operation unit 122 is arranged. The operation unit 122 is an input unit that receives a user operation, and each operation key includes a contact-type switch that is turned on or off by pressing a key top.

  The display 121 has an operation unit formed of a contact sensor on the display screen, and constitutes a touch panel together with the operation unit. The contact sensor is an input unit that receives a user operation and generates a detection signal indicating the operation position. For example, the contact sensor includes a capacitive touch pad.

  The PC print function is an image output function for printing image data on a predetermined sheet (paper medium) based on a print request from the PC 11. The PC-FAX transmission function is an image output function that transmits image data to an external device via the PSTN 3 based on a FAX transmission request from the PC 11. The PC scan function is an image input / output function that optically reads image data from a document (paper medium) based on a scan request from the PC 11 and transmits the read image data to an external device via the LAN 2. is there.

  In the MFP 12, by operating a specific operation key such as an “energy saving key”, it is possible to switch between the normal power mode and the power saving mode in which the power consumption is reduced as compared with the normal power mode. In the power saving mode, power supply to at least the display 121 is cut off. Therefore, in the power saving mode, the backlight of the display 121 is turned off and the screen display is not displayed. In addition, when a certain time elapses after completion of image data input / output processing such as printing processing, the mode is automatically switched to the power saving mode.

<MFP>
FIG. 2 is a block diagram illustrating a configuration example of the MFP 12 in the image processing system 1 of FIG. The MFP 12 includes a timer 24, an operation unit 122, a front end unit 123, a decoding unit 124, a printing unit 125, a FAX transmission unit 126, an optical reading unit 127, an encoding unit 128, a screen data storage unit 129, a display control unit 130, and a touch panel. 131.

  The front end unit 123 is a network communication unit including the packet transmission / reception unit 21, the request signal reception unit 22, and the mode control unit 23. The packet transmitting / receiving unit 21 is connected to the LAN 2 and performs packet data transmission processing and reception processing. The request signal receiving unit 22 monitors the received packet data and accepts a request signal from the PC 11.

  This request signal is an activation request that designates one of a plurality of predetermined image input / output processes as selectable image input / output processes and instructs the MFP 12 to execute the process. Selectable image input / output processing includes print processing, FAX transmission processing, and scan processing. By sending a print request, FAX transmission request, or scan request from the PC 11, these image input / output processing is selectively executed. Can be made.

  The mode control unit 23 switches the operation mode to either the normal power mode or the power saving mode in which the power consumption of the MFP 12 is reduced as compared with the normal power mode. The decoding unit 124 is a data decoding unit that generates output data having a predetermined data format by decoding received packet data.

  The printing unit 125 is an image output processing unit that prints image data on a predetermined sheet. The printing unit 125 executes print processing in response to a print request from the PC 11 as a PC print function. That is, when a print request is received from the PC 11, the image data transferred from the PC 11 and decoded by the decoding unit 124 is printed on paper.

  The FAX transmission unit 126 is an image output processing unit that transmits image data to an external device via the PSTN 3. The FAX transmission unit 126 performs a FAX transmission process in response to a FAX transmission request from the PC 11 as a PC-FAX transmission function. That is, when a FAX transmission request is received from the PC 11, the image data transferred from the PC 11 and decoded by the decoding unit 124 is transmitted to the transfer destination designated by the FAX transmission request via the PSTN 3.

  The optical reading unit 127 is an image input processing unit that optically reads image data from a document. The optical reading unit 127 performs a scan process in response to a scan request from the PC 11 as a PC scan function. That is, when a scan request is received from the PC 11, the original is optically read and image data is generated.

  The encoding unit 128 is data encoding means that encodes the image data read by the optical reading unit 127 into packets, generates packet data having a predetermined data format, and outputs the packet data to the packet transmitting / receiving unit 21. Based on the scan request from the PC 11, the packet transmission / reception unit 21 transmits packet data to the transfer destination designated by the scan request via the LAN 2.

  While the front end unit 123 is always supplied with power, the decoding unit 124, the printing unit 125, the FAX transmission unit 126, the optical reading unit 127, the encoding unit 128, the display control unit 130, and the touch panel 131 are blocked. Power is supplied through the switch (switch).

  The mode control unit 23 switches the operation mode between the normal power mode and the power saving mode based on the input signal from the operation unit 122, the time-up signal from the timer 24, and the output of the request signal receiving unit 22. A SW control signal is generated. In the power saving mode, the power supply to the decoding unit 124, the printing unit 125, the FAX transmission unit 126, the optical reading unit 127, the encoding unit 128, the display control unit 130, and the touch panel 131 is cut off by turning on or off the blocking SW. Is done.

  You can forcibly switch to the power saving mode by operating the “energy saving key” during the normal power mode, and return to the normal power mode by operating the “energy saving key” during the power saving mode. be able to.

  The timer 24 is an elapsed time measuring unit that outputs a time-up signal when a predetermined time elapses without receiving a user operation and a request signal after image input / output processing such as print processing is completed. . After completion of image input / output processing such as printing processing, the timer 24 is timed up and the operation mode is automatically switched to the power saving mode when a predetermined time elapses without accepting a user operation or a start request from the PC 11. It is done.

  In the mode control unit 23, if the request signal receiving unit 22 receives a print request, a FAX transmission request, or a scan request from the PC 11 during the power saving mode, the normal power is based on the start request. The operation to switch to the mode is performed.

  In addition, when switching to the normal power mode in response to an activation request from the PC 11, the decoding unit 124, the printing unit 125, the FAX transmission unit 126, the optical reading unit 127 or the encoding unit 128, the display control unit 130, and the touch panel 131 are used. The power saving mode is canceled, and the operation mode shifts to the normal power mode. That is, in this case, only the image processing unit and the display unit (display control unit 130 and touch panel 131) specified by the activation request from the PC 11 are in the normal power mode, and the other image processing units remain in the power saving mode. .

  Specifically, when a print request is received from the PC 11, only the decoding unit 124, the printing unit 125, the display control unit 130, and the touch panel 131 are in the normal power mode. When the FAX transmission request is received, only the decoding unit 124, the FAX transmission unit 126, the display control unit 130, and the touch panel 131 are in the normal power mode. When a scan request is received, only the optical reading unit 127, the encoding unit 128, the display control unit 130, and the touch panel 131 are in the normal power mode.

  On the other hand, when switching to the normal power mode by operating the operation keys, power is saved for the decoding unit 124, the printing unit 125, the FAX transmission unit 126, the optical reading unit 127, the encoding unit 128, the display control unit 130, and the touch panel 131. The mode is released. That is, when returning to the normal power mode based on the activation request from the PC 11, the image input / output process is executed by returning only the image processing unit and the display unit necessary for the requested image input / output process. Power consumption at the time can be suppressed.

  In this case, when the normal power mode is restored based on the activation request from the PC 11, when the requested image input / output process is completed, the mode is switched to the power saving mode without waiting for the timer 24 to expire. Shall.

  The touch panel 131 includes a display 121 and an operation unit 132. The operation unit 132 includes a contact sensor formed on the display screen of the display 121, and accepts a user operation in the normal power mode. In the power saving mode, the backlight of the display 121 is turned off and the screen display is not displayed.

  The display control unit 130 controls the display 121 to switch and display a plurality of operation screens associated with different image input / output processes. For example, four operation screens associated with each of print processing, FAX transmission processing, scan processing, and copy processing are switched and displayed.

  When the display control unit 130 receives a request signal from the PC 11 during the power saving mode, the display control unit 130 switches to an operation screen associated with the image input / output processing specified by the request signal. That is, if there is a startup request from the PC 11, an operation screen associated with the image input / output process specified by the startup request is displayed on the display 121. On the other hand, even if the display control unit 130 receives a request signal during the normal power mode, the display control unit 130 does not switch the displayed operation screen.

  When shifting to the normal power mode based on the activation request from the PC 11, an operation screen associated with the image input / output processing specified by the activation request is displayed. This operation screen is a notification screen for notifying the user of the type of image input / output processing associated, the identification information of the request source of the image input / output processing, the identification information of the image data, and the like. A cancel button for canceling execution of output processing is arranged.

  The screen data storage unit 129 holds screen data 31 for displaying an operation screen on which a cancel button is arranged. The screen data 31 is created in advance for each image input / output process of the printing process, FAX transmission process, scan process, and copy process.

  For example, on the operation screen corresponding to the print process, a cancel button symbol for canceling the print process being executed is arranged as an operation target icon. On the operation screen corresponding to the FAX transmission process, a stop button symbol for canceling the FAX transmission process being executed is arranged as an operation target icon. On the operation screen corresponding to the scan process, a stop button symbol for canceling the scan process being executed is arranged as an operation target icon. The copy process (copy process) includes a series of processes for optically reading image data from a document and printing the obtained image data on paper.

  The printing unit 125, the FAX transmission unit 126, and the optical reading unit 127 all stop the image input / output process being executed based on the detection signal from the operation unit 132. For example, if a cancel button in the operation screen is operated during the execution of the printing process, the printing process is forcibly terminated.

<Operation screen>
FIGS. 3 and 4 are diagrams illustrating an example of the operation of the MFP 12 in FIG. 2, and the operation screens 41, 51, 61, and 71 that are displayed when returning to the normal power mode in response to a startup request from the PC 11 are illustrated. Has been. 3A shows an operation screen 41 displayed during PC printing, and FIG. 3B shows an operation screen 51 displayed during security printing.

  When there is a print request from the PC 11, the normal power mode is restored based on the print request, print processing is executed, and a corresponding operation screen 41 is displayed on the display 121. The operation screen 41 includes a cancel button 42 for canceling the print processing being executed, identification information of the requester of the print request, image data identification information, a message indicating that the print processing is being executed, and the like. Is displayed.

  Specifically, the user name “ABC” is displayed as the identification information of the request source, and the document name “abc” is displayed as the identification information of the image data to be printed. If the cancel button 42 is operated while the operation screen 41 is displayed, the printing process can be terminated.

  The MFP 12 according to the present embodiment also supports security printing as a function of PC printing. The security print is an image output process that increases confidentiality by permitting printing only when user authentication is successful. When a security print is requested as a print request from the PC 11, an operation screen 51 on which an authentication information input field 52 is arranged is displayed.

  On this operation screen 51, a cancel button 53 for canceling processing and an authentication information, for example, password input field 52, are arranged, identification information of the requester of the print request, and a message indicating that the user authentication is awaited Etc. are displayed. If the stop button 53 is operated while the operation screen 51 is displayed, the process can be terminated.

  The user authentication is performed by collating the input information input in the input field 52 with registered information held in advance. If the user authentication is successful, the printing process is executed and the printing process is executed. The screen display is switched to the execution screen 54 indicating that it is in the middle.

  The execution screen 54 displays a cancel button 55 for canceling the print process being executed, identification information of the requester of the print request, image data identification information, a message indicating that the print process is being executed, and the like. Is done. If the cancel button 55 is operated while the execution screen 54 is displayed, the print processing being executed can be terminated.

  FIG. 4A shows an operation screen 61 displayed during PC-FAX transmission, and FIG. 4B shows an operation screen 71 displayed during PC scanning. When there is a FAX transmission request from the PC 11, the normal power mode is restored based on the FAX transmission request, a FAX transmission process is executed, and a corresponding operation screen 61 is displayed on the display 121.

  The operation screen 61 includes a cancel button 62 for canceling the FAX transmission process being executed, identification information of the requester of the FAX transmission request, identification information of the image data, identification information of the transfer destination, and FAX transmission processing. A message indicating that it is in progress is displayed.

  In this example, the FAX telephone number of the transfer destination designated by the FAX transmission request is displayed as transfer destination identification information. If the stop button 62 is operated while the operation screen 61 is displayed, the FAX transmission process can be terminated.

  When there is a scan request from the PC 11, the normal power mode is restored based on the scan request, the original optical reading process is executed, and a corresponding operation screen 71 is displayed on the display 121.

  This operation screen 71 includes a cancel button 72 for canceling the optical reading process being executed, a message indicating that the scan request request source identification information, the image data identification information, and the optical reading process are being executed. Etc. are displayed.

  When the optical reading process is completed, a transmission process for transferring the read image to the requester of the scan request is executed, and the screen display is switched to an execution screen 73 indicating that the transmission process is being executed. If the stop button 72 is operated while the operation screen 71 is displayed, the optical reading process can be ended.

  The execution screen 73 displays a cancel button 74 for canceling the transmission processing being executed, identification information of the request source of the scan request, identification information of the image data, a message indicating that the transmission processing is being executed, and the like. Is done. If the cancel button 74 is operated while the execution screen 73 is being displayed, the transmission process being executed can be terminated.

  Steps S101 to S110 in FIG. 5 are flowcharts showing an example of the operation of the MFP 12 in FIG. First, the request signal receiving unit 22 monitors an IP packet received via the LAN 2, and if the received IP packet is an activation request from the PC 11, instructs the mode control unit 23 to turn on or off the blocking SW. Thus, the normal power mode is restored (steps S101 to S103).

  At this time, the type of the image input / output process (job) instructed from the PC 11 as the activation request is determined, and the image processing unit and the display unit corresponding to the job content are switched to the normal power mode (step S104).

  Next, the display control unit 130 displays an operation screen corresponding to the job content on the display 121, and image input / output processing is executed in the image processing unit corresponding to the job (steps S105 and S106).

  For example, when execution of printing processing is instructed from the PC 11, the decoding unit 124, the printing unit 125, the display control unit 130, and the touch panel 131 are switched to the normal power mode. Then, an operation screen on which a cancel button for canceling the print process is displayed is displayed, and the image data print process is executed.

  If the cancel button in the operation screen is operated during execution of the image input / output process, the image processing unit corresponding to the job stops the image input / output process (steps S107 and S108). The processing procedure from step S106 to step S108 is repeated until the image input / output process or the interruption process of the image input / output process is completed (step S109). When the image input / output process or the interruption process is completed, the mode control unit 23 Then, the mode is switched to the power saving mode, and this process is terminated (step S110).

  According to the present embodiment, even if a request signal is received during the normal power mode, if the request signal is received during the power saving mode without switching the displayed operation screen, the image input / output specified by the request signal It is possible to automatically switch to the operation screen corresponding to the process. For this reason, if a request signal is transmitted from the PC 11 in the power saving mode, the screen is automatically switched to an operation screen corresponding to the image input / output processing specified by the request signal. Therefore, when shifting to the normal power mode based on the request signal Convenience can be improved. On the other hand, in the normal power mode, since the operation screen is not switched by the request signal, the convenience of the user trying to operate the MFP 12 is not impaired.

  Further, convenience can be greatly improved by automatically switching the operation screen according to a request signal in the power saving mode while avoiding inadvertent switching of the operation screen. Further, by operating a cancel button in the operation screen that is automatically switched by the request signal in the power saving mode, the execution of the image input / output process instructed by the request signal can be stopped. Therefore, the user can cancel the execution of the image input / output process requested from the PC 11 without switching the operation screen.

  In the present embodiment, an example in which the MFP 12 and the PC 11 are connected via the LAN 2 and the MFP 12 receives a request signal from the PC 11 via the LAN 2 has been described. However, the present invention is limited to such a configuration. It is not a thing. For example, the configuration may be such that a request signal is received from an external terminal device via the Internet or a WAN (wide area network).

  In the present embodiment, an example in which the operation of the cancel button in the operation screen is detected using the touch panel 131 has been described, but the present invention is not limited to such a configuration. For example, a cancel button symbol is displayed as a function assignment in the operation screen in association with a predetermined operation key of the operation unit 122, and if the operation key is operated while the operation screen is displayed, the image processing unit The image input / output process being executed may be stopped.

1 Image processing system 2 LAN
3 PSTN
11 PC
12 MFP
121 display 122 operation unit 123 front end unit 124 decoding unit 125 printing unit 126 FAX transmission unit 127 optical reading unit 128 encoding unit 129 screen data storage unit 130 display control unit 131 touch panel 132 operation unit 21 packet transmission / reception unit 22 request signal reception unit 23 Mode control unit 24 Timer 31 Screen data 41, 51, 61, 71 Operation screen 42, 53, 55, 62, 72, 74 Cancel button

Claims (4)

A display unit for switching and displaying two or more operation screens associated with different image input / output processes;
A mode control unit that switches the operation mode to one of a normal power mode and a power saving mode in which the power consumption of the display unit is reduced from the normal power mode;
An operation unit for accepting user operations;
A request signal receiving unit that receives one of the image input / output processes via the communication network and receives a request signal that instructs execution of the image input / output processes;
When the mode control unit receives either the user operation or the request signal in the power saving mode, the mode control unit switches the operation mode to the normal power mode, and the user operation and the request signal in the normal power mode. When a certain period of time has passed without acceptance, the operation mode is switched to the power saving mode,
If the display unit receives the request signal during the power saving mode, the display unit switches to the operation screen associated with the image input / output processing specified by the request signal, while the request is performed during the normal power mode. A multi-function machine that does not switch the displayed operation screen even when a signal is received. The operation unit is composed of a contact sensor formed on the screen of the display unit, constitutes a touch panel together with the display unit,
The multifunction device according to claim 1, wherein the operation screen includes a symbol of an operation button.   The multifunction device according to claim 2, wherein the operation screen is provided with a cancel button for canceling the execution of the image input / output process associated with the operation screen, as the operation button. .   The image input / output process includes at least two or more of a print process for printing image data on a paper medium, a facsimile transmission process for transmitting image data to the outside, and a scan process for optically reading image data from a paper medium. The multifunction device according to claim 1, wherein the multifunction device is provided.

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