JP2010056903A - Electronic filling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To permit confirmation of the content of image data, in which the prohibition of external output (printing or the like) of the image data is set with respect to each storing/stored image data, while preventing the leakage of information even though the input of permitting information is not effected, in an electronic filing device. <P>SOLUTION: The electronic filing device or a multifunction device 1 includes the preview display function whereby the prohibition of external output of the image data when the output permitting information is not input with respect to each image data storing/stored in an image memory unit 15 can be set. The multifunction device 1 effects limited preview display in the configuration of limiting the amount of information when the preview display of the image data, whose external output is set so as to be prohibited, is instructed but the output permitting information is not input with respect to the image data. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electronic filing apparatus having a preview display function for image data and capable of setting to prohibit output of the image data unless the output permission information is input for each stored / stored image data.

In recent years, digital multifunction peripherals (hereinafter referred to as multifunction peripherals) have an electronic filing function in addition to a copy function, a printer function, and a scanner function.
In the electronic filing function, a document read using the scanner function is stored as image data in a storage device built in the multifunction peripheral, and image data received during printing using the printer function is stored in the storage device. Can be saved. The multi-function peripheral can call out the data stored as described above and output it externally (for example, reprinting or transmission to an external device).

  Since such a multifunction device is shared by a plurality of users, when the image data is saved (or after saving) as described above, the user can set output permission information such as a password for each image data. It has become. Thus, unless a password is input, external output of image data with the password set is prohibited so that important image data is not viewed by an unspecified number of users.

Incidentally, some multifunction peripherals have a function of previewing image data.
In a multi-function peripheral having an electronic filing function, a large amount of image data is stored and managed, for example, for each file name. When the user searches for the target image data from the stored image data and externally outputs the image data, the user does not know all the contents of the image data for each file name, so the above preview display function is used, It is confirmed whether the selected image data is the target image data. However, with a conventional multifunction device, a password must be entered even when previewing image data for which external output is prohibited, so if the desired image data cannot be found immediately, the password is entered many times. Must. However, image data for which external output is prohibited can be viewed by an unfavorable user if it can be previewed in the same manner as image data for which external output is not prohibited even if a password is not input. There is a risk of information leakage.

Patent Document 1 discloses an image forming apparatus that determines whether or not to restrict use of an image forming unit depending on whether a password or the like is input, and permission of a preview operation at the time of image formation restriction is given by an administrator of the apparatus. If it is set, the use of the image memory unit and the monitor is permitted so that the preview operation can be performed even if the use of the image forming means is restricted without the input of the password. However, no mention is made regarding the information leakage described above.
JP 2002-57821 A

  The present invention has been made in view of the above circumstances, and in an electronic filing device, image data in which prohibition of external output (printing or the like) of the image data is set for each image data to be stored or stored. It is an object of the present invention to be able to confirm the contents of the information while preventing information leakage without inputting the output permission information.

  In order to solve the above-mentioned problem, a first technical means of the present invention is an electronic filing device, comprising a preview display function of image data, and is stored in a storage means or for each of the stored image data, An output prohibition setting means for setting prohibition of external output of the image data when the output permission information is not input, and when the preview display of the image data for which prohibition of external output is set is instructed, With respect to data, when the output permission information is not input, a limited preview display, which is a display with a limited amount of information, is performed.

  The second technical means is characterized in that, in the first technical means, in the limited preview display, only a part of the image of the image data is left and displayed.

  In a first technical means, in the first technical means, a part of a predetermined page of the image data is displayed on a screen capable of displaying only a part of the image data in the limited preview display. It is characterized by invalidating the instruction operation of the process related to the display image including the enlargement process, the reduction process, the page movement process, and the in-page display part change process.

  A fourth technical means is a preview display method for image data stored in an electronic filing device and set to prohibit external output when no output permission information is input, and when the output permission information is not input. The image data includes a step of performing a limited preview display that is a display in a form in which the amount of information is limited.

  According to the present invention, when preview display for content confirmation is instructed for image data for which output prohibition is set, a limited preview display in a form in which the amount of information of the image data is limited is performed. If it is a regular user, it can confirm whether the selected image data is target image data based on the said display. Further, if the user is not a regular user, the amount of information displayed is small, and the entire image data cannot be grasped, so that data leakage can be suppressed.

  The electronic filing device of the present invention has an electronic filing function that can store image data of a read original document, image data received at the time of printing, and the like in an image storage unit. Each time, it is possible to set to prohibit external output of the image data when the output permission information is not input. In addition, the electronic filing device has a preview display function so that the user can confirm the contents of the stored image data, and when there is an instruction to display a preview for image data for which output prohibition is not set. The operation is performed in the normal preview mode in which the preview is displayed so that the entire image data can be confirmed. The electronic filing device, when there is a preview display instruction for image data stored with the prohibition of external output set, outputs part of the image data when no output permission information is input. Only in a limited preview mode in which only a part of the contents of the image data can be confirmed by the user.

First, an outline of the electronic filing apparatus will be described with reference to FIGS. 1 and 2.
FIG. 1 is a schematic block diagram illustrating a configuration example of an electronic filing device according to an embodiment of the present invention. The electronic filing device illustrated in FIG. 1 is used for printing and printing operations in addition to the electronic filing function. It is configured as a multifunction machine having a function and a facsimile transmission / reception function. FIG. 2 is an external view showing an example of a touch panel and a key operation unit in the multifunction machine of FIG.

  An electronic filing device (hereinafter referred to as MFP) 1 configured as a multifunction device includes a touch panel 10, a panel control unit 11, a recording unit 12, a reading unit 13, a format conversion unit 14, an image storage unit 15, an image processing unit 16, and an encoding. / Decoding unit 17, main control unit 18, control memory 19, key operation unit 20, LAN (Local Area Network) control unit 21, control buffer 22, network control unit (NCU: Network Control Unit) 23, and modem 24 It has.

  The main control unit 18 is configured by a CPU (Central Processing Unit) and the like, and the control memory 19 is configured by a nonvolatile memory such as a ROM (Read Only Memory). A program (firmware) and various setting data are stored in the control memory 19 so as to be readable from the main control unit 18. The control buffer 22 is composed of a volatile memory such as a RAM (Random Access Memory).

  The above-described program includes a command for generating and displaying a limited preview image, which will be described later, according to the present invention, a command for generating / transmitting / receiving a facsimile image or an e-mail, a command for reading a document, and a printing This is for the main control unit 18 to issue such commands to other parts. This program is developed on the control buffer 22 by the main control unit 18, and is executed while referring to various setting data as appropriate, with the control buffer 22 used as a data area for temporary storage (work).

  The reading unit 13 reads a document using a CCD (Charge Coupled Device) or the like, and outputs the read RGB (R: red, G: green, B: blue) image data to the image processing unit 16.

  The image processing unit 16 performs various image processing on the target image data. For example, as part of the electronic filing function, when a document is read by the reading unit 13 and stored in the image storage unit 15, document reading image processing including A / D conversion for RGB image data from the reading unit 13 is performed. . In the electronic filing function, the image data after image processing for document reading is output and stored in the image storage unit 15 directly or via the format conversion unit 14 and / or the encoding / decoding unit 17. The image processing unit 16 performs image processing for printing, including image quality adjustment processing according to an output form, when printing image data stored using the electronic filing function and when transmitting to an external device (when outputting externally). Perform image processing for fax transmission.

  The image processing unit 16 includes a preview image / restricted preview image generation unit (hereinafter abbreviated as a preview image generation unit) 16a. The preview image generation unit 16a performs various image adjustment processes on the image data read from the image storage unit 15, and displays the preview image in the normal preview mode (normal preview image) or the preview display in the limited preview mode. Image (restricted preview image) is generated. In contrast to the normal preview image that may be all or part of the image data of the selected page, the limited preview image fills all or part of the image data of the selected page with white or the like. The amount of information is limited compared to a normal preview image. The generated normal preview image or restricted preview image is output to the panel control unit 11 and controlled to be displayed on the touch panel 10.

  The image storage unit 15 is configured by a hard disk or the like, and stores image data read by the reading unit 13 via the image processing unit 16 or the like, image data received from the outside via the LAN control unit 21 or the like. The multifunction device 1 manages the stored image data with the file name and user name of the image data, and management information such as the file name is stored in the control memory 19 as management data. The Further, in the management data, as the management information, for each image data stored in the image storage unit 15, an output prohibition setting for prohibiting the external output of the image data unless the output permission information is input ( (Hereinafter referred to as confidential processing settings) and confidential passwords as output permission information.

The encoding / decoding unit 17 compresses the image data by encoding and decodes (decompresses) the encoded image data into the original image data. For example, the encoding / decoding unit 17 performs encoding of image data obtained by reading a document, decoding of the encoded data, decoding of encoded image data received from the outside, and the like as necessary. The encoding / decoding unit 17 can use an encoding method according to the application such as JPEG (Joint Photographic Experts Group) generally used in filing.
The format conversion unit 14 converts the read image data or image data received from the outside into a predetermined file format such as PDF (Portable Document Format).
The recording unit 12 includes a printer apparatus that employs a printing method such as an electrophotographic method, and records (that is, prints) image data stored in the image storage unit 15 on a recording sheet.

The modem 24 is composed of a facsimile modem capable of facsimile communication, and is connected to a telephone line and directly connected to the NCU 23. The NCU 23 connects the modem 24 to the public telephone line network as necessary. With such a configuration, the image data stored in the image storage unit 15 can be transmitted by facsimile to the outside.
The LAN control unit 21 is connected to the LAN and performs communication of electronic mail data and Internet facsimile (Internet FAX) via the Internet.

  The touch panel 10 or the key operation unit 20 executes an operation for selecting a desired process from processes such as a document reading process and an image data transmission process, an operation for starting the process, and each process. An operation (selection operation or input operation) for making necessary settings is accepted. The touch panel 10 and the key operation unit 20 may be configured as an operation panel 30 illustrated in FIG. The key operation unit 20 includes a key group necessary for operation, such as a start key 20a for receiving an instruction to start reading a document. In particular, the key operation unit 20 includes a numeric keypad 20b used for inputting a confidential password, and functions as an output permission information input unit (confidential password input unit) 20c. The key operation unit 20 is also used for setting a confidential password.

The touch panel 10 includes a display unit such as a liquid crystal display and an operation reception unit such as a touch sensor. The touch panel 10 is subjected to display control and operation acceptance control by the panel control unit 11. That is, the panel control unit 11 performs display control of the display unit and operation reception control of the operation reception unit on the touch panel 10.
Further, the panel control unit 11 stores, for example, an output prohibition setting unit (confidential process setting unit) when accepting an output prohibition setting (confidential process setting) for image data stored in the image storage unit 15 by the touch panel 10 ) Also functions as 11a.
The display on the display unit of the touch panel 10 is realized by the panel control unit 11 controlling so as to display a GUI (Graphical User Interface) image. Each GUI and its image may be stored in the internal memory of the panel control unit 11 or the control memory 19 so as to be readable.

  User operations received by the touch panel 10 or the key operation unit 20 are transmitted to the main control unit 18 as operation signals. The main control unit 18 issues a command according to the operation signal obtained in this manner to another part, thereby causing the other part to execute a process according to the user operation.

Next, an example of preview display processing for confirming the contents of image data in the electronic filing apparatus configured as the above-described multifunction device 1 will be described with reference to FIG.
In the multifunction device 1, when an instruction for preview display is received for the image data stored in the image storage unit 15 via the touch panel 10, for example (step S1), the main control unit 18 refers to the management data stored in the memory 19 Then, it is determined whether confidential processing is set for the selected image data (step S2).

  When the confidential processing is not set (in the case of NO), the main control unit 18 operates the multifunction device 1 in the normal preview mode, and instructs the preview image generation unit 16a and the panel control unit 11 to select it. A normal preview image is generated based on the image data and displayed on the touch panel 10 (step S3). Thereafter, the normal preview image is continuously displayed until an instruction to end the preview display is received via the touch panel 10 or the like.

  When confidential processing is set for the selected image data (step S2, YES), the main control unit 18 instructs the panel control unit 11 to display a confidential password input instruction screen on the touch panel 10 (step S4). ). In subsequent step S5, the main control unit 18 determines whether or not a confidential password has been input based on an operation on the confidential password input instruction screen (step S5).

When the confidential password is not input (in the case of NO), the main control unit 18 operates the multifunction device 1 in the limited preview mode, and instructs the preview image generation unit 16a and the panel control unit 11 to select the confidential password. For the image data, a limited preview image having a limited amount of information is generated based on the image data and displayed on the touch panel 10, that is, a limited preview display is performed (step S6).
In the limited preview mode, as the limited preview image, it is possible to display an image filled with white or black except for a part of the image data of the page specified by the user. At that time, it is preferable to leave only the end portion that is filled (hidden) at the center of the image. Also, in this case, it is permitted to accept instructions for processing related to the display image (for example, display image enlargement / reduction processing, current page movement processing, display portion change processing in the current page) (valid) When these instructions are received, the preview image generation unit 16a performs image enlargement / reduction processing, rotation processing, and the like of the limited preview image based on the instructions.
Further, in the limited preview mode, all the processing instructions (acceptance) regarding the display image as described above may be invalidated and a part of a predetermined page of the image data may be displayed. Note that when displaying an image that has been partially filled, the instruction for processing related to the display image may be invalidated.

  On the other hand, if the confidential password is input (step S5, YES), it is determined whether the input confidential password is correct (step S7). If it is correct (in the case of YES), the process proceeds to step S4 and is selected. A normal preview image is generated based on the image data and displayed on the touch panel 10, and if it is not correct (in the case of NO), the process is terminated without displaying a preview in particular (step S8).

  Hereinafter, an example of a screen displayed on the touch panel 10 of the multifunction device 1 in the document filing mode in which the electronic filing function is used, the normal preview mode, and the limited preview mode will be described together with the operation of the multifunction device 1 at that time.

  FIG. 4 is a diagram illustrating an example of a standard screen of the multifunction peripheral described in FIGS. 1 and 2. FIG. 4 shows an example of a GUI image (referred to as GUI image 40) displayed on the touch panel in the digital multi-function peripheral 1 as the standard screen. The multifunction device 1 displays a GUI image 40 of a standard screen on the touch panel 10 when the power is turned on or reset. In the GUI image 40, a copy mode selection key 41, an image transmission mode selection key 42, and a document filing mode selection key 43 are displayed to select an operation mode of the digital multi-function peripheral 1. In the GUI image 40, a copy mode is selected. Indicates that is selected.

  The operation at the time of executing the image data reading / storing function in the document filing mode in the multifunction machine of FIGS. 1 and 2 will be described with reference to FIGS. FIG. 5 shows an example of a basic screen in the document filing mode, and FIG. 6 shows an example of a storage condition setting screen displayed when executing the image data reading and saving function which is one of the functions in the document filing mode. FIG. 7 shows an example of a management information setting screen displayed when the image data reading / saving function is executed. FIG. 8 shows an example of a confidential password input screen, which is one piece of management information.

When the document filing mode selection key 43 is pressed and selected in the GUI image 40 of FIG. 4, the multi function device 1 displays the GUI image 44 of the basic screen of the document filing mode in the example of FIG. 5 on the touch panel 10. Start operation in this mode.
The GUI image 44 shows a state in which the saved image data call function selection key 45 is selected from the keys for selecting the function in the document filing mode.
A GUI image 47 in FIG. 6 shows a state where the scan storage function selection key 46 for storing the read image data in the image storage unit 15 is pressed and selected. In the GUI image 47, various storage condition setting keys 48 such as a resolution setting key 48a for setting the storage conditions of the image data to be read and a storage detail setting (management information setting) key 49 for the image data to be stored are displayed. Has been.

When the management information setting key 49 is pressed on the GUI image 47, the multi-function device 1 displays the GUI image 50 of the management information setting screen in the example of FIG.
In the GUI image 50, a confidential processing setting check box 51, a password setting key 52, a user name setting key 53, a file name setting key 54, and the like are displayed for setting management information for image data to be stored.

When the confidential processing setting check box 51 is checked and the confidential processing is set, the gray-out display of the password setting key 52 is canceled and the key can be operated. When the password setting key 52 is pressed, the GUI image 55 of the confidential password input screen in the example of FIG. Thereafter, a numeric string input via the numeric keypad 20b of the key operation unit 20 is set as a confidential password.
When the user name setting key 53 or the file name setting key 54 of the GUI image 50 in FIG. 7 is pressed, a GUI image (not shown) of an input screen for management information such as a user name and a file name is displayed on the touch panel 10. Then, the management information is set by a selection input from the user for the GUI image.

When the start key 20a of the key operation unit 20 is pressed while the storage condition and management information are set via the GUI image 47 of FIG. 6 and the GUI image 47 is displayed, the multi function device 1 is set. Based on the storage conditions, the original is read by the reading unit 13, various image processing is performed by the image processing unit 16, and the image data is stored in the image storage unit 15. Also, the management information of the image data (including information on whether confidential processing of the image data is set and a password) is stored (added storage) in the control memory 19.
Note that the image data management information including information indicating whether confidential processing is set can be changed after saving.

  Although detailed description is omitted, in the electronic filing function, as described above, in addition to the image data of the document read using the reading unit 13, it is received when a print instruction is received from an external device such as a PC. Image data can also be stored in the image storage unit 15. Confidential processing can also be set for image data in this form.

  The operation in the normal preview mode of the multifunction peripheral of FIGS. 1 and 2 will be described with reference to FIG. 5 with reference to FIGS. FIG. 9 shows an example of a processing setting screen for setting processing for image data selected from those stored in the image storage unit, and FIG. 10 shows an example of a preview display screen in the normal preview mode.

  In the basic screen of the document filing mode exemplified by the GUI image 44 in FIG. 5, the image data stored in the image storage unit 15 is displayed as a list, and the GUI image 44 stores the stored image data (hereinafter referred to as stored image data). A plurality of file keys 57 indicating management information such as file names are displayed. The file key 57 indicates whether confidential processing is set for the image data indicated by the file name of the file key or not by the presence / absence of a “key mark” icon I on the left side of the file name.

When the file key 57 without the “key mark” icon I is pressed, that is, when stored image data for which confidential processing is not set is selected, the multifunction device 1 displays the processing setting screen in the example of FIG. The GUI image 58 is displayed on the touch panel 10.
In the GUI image 58, a print process selection key 59, a transmission process selection key 60, a preview display process (image confirmation) selection key 61, and the like are displayed in order to select a process for the selected saved image data.

  When the preview display processing selection key 61 is pressed and selected in the GUI image 58, the preview image generation unit 16a generates a normal preview image for the target saved image data, and the normal preview image is, for example, shown in FIG. Like the preview display screen (GUI image 62) of the normal preview mode in the example, it is incorporated in the GUI image and displayed on the touch panel 10.

  In addition to the normal preview image 63, the GUI image 62 displays an enlargement / reduction key 64, a display rotation key 65, page movement keys 66 to 68, a scroll bar 69, and the like. The screen operation keys are enabled and operation is possible.

Next, with reference to FIGS. 11 and 12, the operation in the limited preview mode of the multifunction peripheral of FIGS. 1 and 2 relating to the features of the present invention will be described with reference to FIGS. 11 and 12 each show an example of a preview display screen in the limited preview mode.
When the file key 57 with the “key mark” icon I is pressed in the GUI image 44 of FIG. 5, that is, when stored image data for which confidential processing has been set is selected, As in the case of the normal preview mode, a processing setting screen similar to the GUI image 58 of FIG.

  When the preview display processing selection key 61 for image confirmation is pressed and selected on the processing setting screen, the multi-function device 1 displays a password input screen similar to the GUI image of FIG. When the numeric string input on the password input screen matches the password set in the selected saved image data, the multifunction device 1 starts the operation in the normal preview mode described above, while the password When the input cancel key 70 is pressed on the input screen, the operation in the limited preview mode is started. It should be noted that the limited preview mode may be operated even when the numeric string input on the password input screen does not match the set password.

  When operating in the limited preview mode, the GUI image 71 in the example of FIG. 11 or the GUI image 73 in the example of FIG. 12 is displayed on the touch panel 10 as a preview display screen of the mode. The operation of the multi-function device 1 differs depending on which GUI image is displayed.

(When displaying the GUI image 71)
A preview image 72 of the GUI image 71 in FIG. 11 is a limited preview image, and is similar to the normal preview image 63 of the GUI image 62 in FIG. Only the upper left corner is left and the image is painted white, and the information amount of the image is smaller than that of the normal preview image 63.

  When the restricted preview image 72 is generated, the multi-function device 1 reads the target saved image data from the image storage unit 15 based on an instruction from the main control unit 18, and performs processing in the encoding / decoding unit 17 as necessary. Then, the image is transferred to the image processing unit 16. The preview image generation unit 16a of the image processing unit 16 performs white processing for whitening the read image data except for the left end portion of one page, and then performs color correction based on the display characteristics of the touch panel 10 Preview image processing including correction processing or the like is performed to generate a limited preview image 72. The generated limited preview image 72 is transferred to the touch panel 10, incorporated into the GUI image by the panel control unit 11, and displayed on the touch panel 10 as the GUI image 71.

  In the limited preview mode, when displaying a limited preview image 72 that is partially filled, if the user is a regular user, based on the image, check whether the selected image data is the target image data. Can do. Further, if the user is not a regular user (if the user is a non-regular user), since the amount of information obtained from the restricted preview image 72 is small, the entire image data cannot be grasped, and data leakage is possible. Sex can be suppressed.

  When displaying the limited preview image 72 that is partially filled, the GUI image 71 is displayed, and an operation for an operation key that instructs processing related to the display image such as the enlargement / reduction key 64 is enabled. Even if the processing (enlargement processing or the like) related to the instructed display image is performed, the information obtained by the user is very small, so the possibility of data leakage does not increase.

(When displaying the GUI image 73)
The GUI image 73 in FIG. 12 is the same as the preview image that displays a part of the image data, but the enlargement / reduction key 64, the display rotation key 65, the page movement keys 66 to 68, and the scroll bar 69. Is different from the GUI image 62 of FIG. 10 in that it is grayed out. That is, the GUI image 73 in FIG. 12 is a GUI image that invalidates the operation of the operation key of the process related to the display image for confirming the details and the entire contents of the selected saved image data.

  When displaying the GUI image 73, as in the case of generating the normal preview image 63, first, based on an instruction from the main control unit 18, the target stored image data is read from the image storage unit 15 and encoded as necessary. / After processing in the decoding unit 17, the image is transferred to the image processing unit 16. The preview image generation unit 16a of the image processing unit 16 performs the above-described preview image processing on the stored image data, and generates a limited preview image 74. The generated limited preview image 74 is transferred to the touch panel 10, incorporated into the GUI image by the panel control unit 11, and displayed on the touch panel 10 as the GUI image 73.

  When the GUI image 73 is displayed in the limited preview mode, the operation for the operation key of the process related to the display image is invalidated, so that only an image of a predetermined page of the image data is displayed. Therefore, if the user is a regular user, it can be confirmed whether the selected image data is the target image data based on the image. In addition, if the user is an irregular user, it is not possible to obtain more information than the image on which the information displayed on the initial screen of the preview display is limited. The possibility is low, and the possibility of data leakage can be suppressed.

  Specifically, in the restricted preview mode that displays the GUI image 73 of FIG. 12, the restricted preview image 74 is displayed so that at least an authorized user can confirm the outline of the selected image data. Further, by prohibiting the enlargement process by not accepting an operation on the enlargement / reduction key 64, it is possible to prevent details of the contents of the selected image data from being grasped by an unauthorized user. Further, by prohibiting the rotation process by not accepting an operation on the display rotation key 65, a portion that was not displayed before the rotation when the rotation process was performed is displayed, and a lot of information is displayed by the unauthorized user. It was made not to get it. In addition, the operation of the page movement keys 66 to 68 (particularly the keys 66 and 67 used when moving between pages) is not accepted, thereby prohibiting the movement between pages, so that the entire image data can be displayed as an unauthorized user. It was made possible to prevent it from being grasped. Further, by not accepting an operation on the scroll bar 69, it is possible to prevent the unauthorized user from grasping details about the page portion of the image data by prohibiting the change of the display portion within the same page. Can do.

  In addition, user authentication information can be received via the touch panel 10, and user authentication information is stored in the control memory 19 (or an externally connected storage device). If user authentication (login user authentication) can be performed by the multifunction device 1 based on the input user name or the like, the following may be performed. That is, for saved image data in which the user name of the user who has been authenticated is stored in the management data, at least when preview image processing is performed, the normal preview mode is used instead of the limited preview mode even if the confidential password is not input. You may make it operate | move.

It is a schematic block diagram which shows the structural example of the electronic filing apparatus which concerns on one Embodiment of this invention. FIG. 2 is an external view illustrating an example of a touch panel and a key operation unit in the multifunction peripheral of FIG. 1. 3 is a flowchart for explaining an example of a preview display process for image confirmation in the multifunction machine of FIGS. 1 and 2. FIG. 3 is a diagram illustrating an example of a standard screen of the multifunction peripheral described in FIGS. 1 and 2. FIG. 3 is a diagram illustrating an example of a basic screen in a document filing mode of the multifunction peripheral described with reference to FIGS. 1 and 2. FIG. 3 is a diagram illustrating an example of a storage condition setting screen displayed when executing an image data reading and storing function in the document filing mode of the multifunction peripheral described in FIGS. 1 and 2. FIG. 3 is a diagram illustrating an example of a management information setting screen displayed when executing the image data reading / storing function in the multifunction peripheral described with reference to FIGS. 1 and 2. FIG. 3 is a diagram illustrating an example of a confidential password input screen that is one piece of management information in the MFP described with reference to FIGS. 1 and 2. FIG. 3 is a diagram illustrating an example of a processing setting screen for setting processing for image data selected from those stored in the image storage unit of the multifunction peripheral described with reference to FIGS. 1 and 2. 3 shows an example of a preview display screen in a normal preview mode of the multifunction machine described with reference to FIGS. 1 and 2. FIG. 3 shows an example of a preview display screen in the limited preview mode of the multifunction machine described with reference to FIGS. 1 and 2. FIG. FIG. 4 shows another example of a preview display screen in the limited preview mode of the multifunction peripheral described with reference to FIGS. 1 and 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Digital multifunctional device, 10 ... Touch panel, 11 ... Panel control part, 11a ... Confidential processing setting means, 12 ... Recording part, 13 ... Reading part, 14 ... Format conversion part, 15 ... Image storage part, 16 ... Image processing part 16a ... Preview image generation unit, 17 ... Encoding / decoding unit, 18 ... Main control unit, 19 ... Control memory, 20 ... Key operation unit, 20a ... Start key, 20b ... Numeric keypad, 20c ... Confidential password input unit, 21 ... LAN controller, 22 ... control buffer, 23 ... NCU, 24 ... modem, 30 ... operation panel.

Claims (4)

It has a preview display function for image data,
For each of the saved image data, the output prohibition setting means for setting prohibition of external output of the image data when the output permission information is not input for each of the stored image data,
When the preview display of the image data for which prohibition of external output is set is instructed, when the output permission information is not input for the image data, the limited preview display that is a display in a limited amount of information An electronic filing device characterized in that   2. The electronic filing device according to claim 1, wherein in the limited preview display, a part of the image data that has been partially filled is displayed. In the limited preview display, a partial image of the predetermined page of the image data is displayed on a screen capable of displaying only a part of the image data,
2. The electronic filing device according to claim 1, wherein an instruction operation of processing related to a display image including display image enlargement processing, reduction processing, page movement processing, and in-page display portion change processing is invalidated. An image data preview display method that is stored in an electronic filing device and set to prohibit external output when no output permission information is input.
A preview display method comprising a step of performing limited preview display, which is a display in a form in which the amount of information is limited for the image data when the output permission information is not input.

Images