JP5156604B2 - Electronic device and storage medium management system - Google Patents

Description

  The present invention relates to a storage medium management system that manages electronic devices such as copiers and multifunction peripherals, and removable storage media connected to the electronic devices.

  Currently, image forming apparatuses such as copiers and multifunction peripherals print out electronic files such as image files and document files stored in storage media such as USB (Universal Serial Bus) memory and SD (Secure Digital) card. In addition, an image file of a document image read from a document by a scan function can be stored in a storage medium. However, after printing out an electronic file stored in the storage medium using such an image forming apparatus or storing the image file in the storage medium, the user forgets to remove the storage medium from the image forming apparatus. In such a case, an electronic file stored in the storage medium may be leaked to the outside by a third party.

  In order to solve such a problem, Japanese Patent Application Laid-Open Publication No. 2004-228620 discloses that an external storage device such as an IC card is loaded with a warning when an operation is interrupted for a predetermined time or longer. An image forming apparatus that can prevent misplacement of the apparatus is disclosed. In this image forming apparatus, when loading of the external storage device is detected, the presence / absence of key operation input in the loaded state of the external storage device is detected. When the duration of no key operation input reaches a predetermined value, visual and / or auditory Generate a warning that appeals to

Patent Document 2 below discloses a document processing apparatus that can reliably prevent a user from forgetting to remove a used external storage medium from the external storage medium driving apparatus. In this document processing apparatus, the time after the operation is stopped is measured, and when the measured time has passed a certain time, if the external storage medium is in the external storage medium drive, And a warning sound indicating that the external storage medium is left behind is displayed on the display screen. Further, Patent Document 3 below discloses a communication terminal device capable of improving security while improving convenience. This communication terminal device is connected to an external storage medium that stores address book information created in a predetermined file format, and warns with a sound or display if the user forgets to remove the external storage medium.
JP-A-2-039906 Japanese Patent Laid-Open No. 10-083619 JP 2007-079761 A

  By the way, in the above prior art, if a removable storage medium is not removed even after a predetermined time has passed since the last operation was performed, it is determined that the storage medium has been forgotten and a warning sound is generated. A ringing or warning screen is displayed to notify the user that the storage medium has been forgotten to prevent the storage medium from being forgotten. However, in the above prior art, when the user is away to a distance where the warning sound cannot be heard or the warning screen cannot be visually observed, the user cannot notice that the storage medium has been forgotten. There were drawbacks. In addition, there is a possibility that highly important information such as confidential information is stored in the storage medium that has been forgotten. If such storage medium is left unattended, the information is malicious. It may be leaked by a third party. For this reason, it is necessary to improve information security by strengthening prevention of information leakage in the above prior art.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide an electronic device and a storage medium management system capable of improving information security as compared with the prior art by strengthening prevention of information leakage. And

  In order to achieve the above object, according to the present invention, as a first solving means relating to an electronic device, an electronic device including a storage medium interface connected to a removable storage medium, the communication unit communicating with the outside, When a storage medium is connected to the storage medium interface, if the data operation instruction of the storage medium is not received within a predetermined time after the data operation of the storage medium ends, the storage medium stores And a control unit that causes the communication unit to transmit a forgetting notification mail for notifying that the storage medium has been forgotten to be removed, and having the electronic mail address being sent as a destination.

  In the present invention, as a second solving means relating to the electronic device, in the first solving means, the control unit stores the storage medium when the communication unit receives a reply mail of the forgetting notification mail. A method of erasing data is adopted.

  In the present invention, as the third solution means for the electronic device, in the second solution means, the control unit employs means for deleting only the data designated by the reply mail from the storage medium.

  In the present invention, as a fourth solving means relating to an electronic device, in the second or third solving means, the control unit includes individual identification information of the storage medium connected to the storage medium interface, When the individual identification information included in the reply mail matches, a means for deleting the data in the storage medium is adopted.

  In the present invention, as a fifth solving means relating to the electronic device, in any one of the second to fourth solving means, the control unit, when erasing data stored in the storage medium, If the transmission success notification mail notifying that the deletion is successful is sent to the communication unit, and the data stored in the storage medium cannot be deleted, the reply mail is transmitted. A means is adopted in which the communication unit is made to transmit an erasure failure notification mail notifying that the origin is a transmission destination and erasure has failed.

  In the present invention, as a sixth solving means relating to an electronic device, in any one of the first to fourth solving means, a storage unit that stores operation history information of the storage medium is provided, and the control unit includes Means for storing the operation history information in the storage unit in response to an operation of a storage medium, and placing the operation history information of the storage medium stored in the storage unit in the deletion success notification mail and the deletion failure notification mail; adopt.

  In the present invention, as a seventh solving means relating to the electronic device, in the sixth solving means, the control unit stores the operation content, the operation target data name, and the operation time in the storage unit as the operation history information. The operation contents, the operation target data name, and the operation time are employed as the operation history information in the deletion success notification mail and the deletion failure notification mail.

  In the present invention, as the eighth solving means relating to the electronic apparatus, in the seventh solving means, the control unit stores user identification information of a user who has operated the storage medium as the operation history information in the storage unit. And adopting means for placing the user identification information as the operation history information in the deletion success notification mail and the deletion failure notification mail.

  In the present invention, as the first solving means related to the storage medium management system, an electronic device adopting any one of the first to eighth solving means, an electronic mail address are stored, and the storage of the electronic device is stored. A storage medium connected to the medium interface, and the electronic mail address stored in the storage medium are own, and means including a terminal device that transmits / receives electronic mail to / from the electronic device is employed.

  According to the present invention, the electronic device is an electronic device provided with a storage medium interface connected to a removable storage medium, and the storage medium is connected to the communication unit that communicates with the outside and the storage medium interface. In addition, if the storage medium data operation instruction is not received within a predetermined time after the data operation of the storage medium ends, the e-mail address stored in the storage medium is set as the transmission destination and the storage medium is forgotten. And a control unit that causes the communication unit to transmit a forgetting-notification mail for notifying that the communication is being performed.

  As in the past, it was not possible to recognize the notification when the user left the electronic device only by notifying that the storage medium was forgotten by sounding the warning sound and displaying the warning screen. As described above, since the user can recognize that the storage medium has been forgotten by e-mail by transmitting the forgetting-notification mail whose destination is the user's e-mail address stored in the storage medium, It is possible to recognize that a storage medium has been forgotten even if it is located away from the electronic device of the invention.

  As described above, by sending a forgotten mail from the electronic device of the present invention to the user, it is possible to prevent forgetting to remove the storage medium, that is, by strengthening prevention of leakage of information stored in the storage medium. Security can be improved.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The present embodiment relates to a multifunction device having both a copy function, a print function, and a facsimile transmission / reception function, which is one of image forming apparatuses included in an electronic apparatus according to the present invention, and a storage medium management system including the multifunction device.
First, the system configuration of the storage medium management system A will be described with reference to FIG. FIG. 1 is a system configuration diagram of a storage medium management system A according to the present embodiment.
As shown in FIG. 1, the storage medium management system A includes a multi-function device B, a USB (Universal Serial Bus) memory C, a terminal device D, and a public network E.

  The multi-function device B executes copy processing based on a copy start instruction, executes print processing based on a print instruction received from a client computer (not shown), and further transmits a facsimile transmitter (not shown) via the public network E. When a facsimile is received from (), a reception result output process is executed based on the facsimile image data.

  Further, when the USB memory C is mounted, the multi-function device B can print electronic files such as image files and document files stored in the USB memory C, and an image of the original image read from the original by the scan function. The file can be stored in the USB memory C. Further, the multi-function device B is connected to the terminal device D via the public network E, and can send and receive electronic mail to and from the terminal device D. The details of the operation of the multifunction machine B will be described later.

  The USB memory C is a nonvolatile storage medium that is configured by a flash memory or the like and is detachable from the multi-function device B. The USB memory C is attached to the multifunction device B, and inputs and outputs electronic files such as image files and document files to and from the multifunction device B through its own USB connector. The USB memory C stores an e-mail address registration file in which the e-mail address of the terminal device D is registered. This e-mail address registration file is stored directly under the storage area of the USB memory C or in a predetermined location in the folder, and the file name is also given a specified name. The USB memory C stores its own serial number as individual identification information.

  The terminal device D is a desktop or notebook personal computer, and is connected to the multifunction device B via the public network E. The terminal device D can send and receive electronic mails to and from the multifunction device B via the public network E. The user who is the owner of the terminal device D can recognize that the terminal device D has forgotten to remove the USB memory attached to the multifunction device B when receiving the forgetting notification mail from the multifunction device B.

  The public network E is a public telephone network and the Internet network, and connects the multifunction peripheral B and the terminal device D. The public network E is a signal transmission path in communication between the multifunction device B and the terminal device D. Note that transmission / reception of electronic mail between the multifunction device B and the terminal device D is performed via the Internet network of the public network E and a mail server (not shown) installed in the public network E.

A functional configuration of the multifunction peripheral B in the storage medium management system A having the above configuration will be described with reference to FIG. FIG. 2 is a functional block diagram of the multifunction peripheral B in the storage medium management system A according to the present embodiment.
The multifunction machine B includes a CPU (Central Processing Unit) 1, a ROM (Read Only Memory) 2, a RAM (Random Access Memory) 3, various sensor groups 4, a paper transport unit 5, an image reading unit 6, an image data storage unit 7, An image forming unit 8, a communication I / F unit 9, an operation display unit 10, a USB port 11, and a USB memory operation history information storage unit 12 are provided.

The CPU 1 includes a control program stored in the ROM 2, various detection signals received from the various sensor groups 4, document image data, print image data and facsimile image data stored in the image data storage unit 7, and a communication I / F unit. 9 controls the overall operation of the multifunction peripheral B based on various instructions input from a client computer (not shown) via 9 and operation instructions input from the operation display unit 10. The details of the control process of the CPU 1 will be described as the operation of the multifunction device B below.
The ROM 2 is a non-volatile memory that stores a control program executed by the CPU 1 and other data.

The RAM 3 is a volatile memory used as a working area as a temporary storage destination of data when the CPU 1 executes a control program and performs various operations.
The various sensor groups 4 are various sensors necessary for an image forming operation such as a paper out detection sensor, a paper jam detection sensor, a paper position detection sensor, a temperature sensor, and the like, and various kinds of information detected by each sensor are detected signals. To the CPU 1.

  The paper transport unit 5 includes a transport roller for transporting the print paper stored in the paper tray to the image forming unit 8, a motor for driving the transport roller, and a print paper after the image forming process to a discharge tray (not shown). It is composed of a conveying roller for conveying, a motor for driving the conveying roller, and the like.

The image reading unit 6 includes an ADF (automatic document feeder), a CCD (Charge Coupled Device) sensor, and the like, and causes the CCD sensor to read images of documents sequentially fed by the ADF so that document image data based on the document image is obtained. Output. The image reading unit 6 outputs the document image data to the CPU 1, while the CPU 1 stores the document image data in the image data storage unit 7.
The image data storage unit 7 is, for example, a flash memory. Under the instruction of the CPU 1, the original image data, the print image data received by the communication I / F unit 9 from a client computer (not shown), and the communication I / F unit 9 The facsimile image data received from the public network E is stored.

The image forming unit 8 controls the printing paper conveyed from the paper conveying unit 5 with toner based on the original image data, print image data, or facsimile image data stored in the image data storage unit 7 under the control of the CPU 1. An image forming image to be formed is transferred, and fixing processing of the image forming image is performed by a fixing roller.
The communication I / F unit 9 is connected to a client computer (not shown) and the public network E, and transmits and receives various signals between the client computer and the public network E.

  The operation display unit 10 includes a copy function switching key, a print function switching key, a scan function switching key, a facsimile function switching key, a start key, a stop / clear key, a power key, a numeric keypad (numeric input key), a touch panel 10a, and various other types. Operation keys are provided, and instructions for operating the keys are output to the CPU 1 and various screens are displayed on the touch panel 10a under the control of the CPU 1. The copy function switching key, the print function switching key, the scan function switching key, and the facsimile function switching key are keys for switching the MFP B to the operation mode of each function when the user uses each function. .

The USB port 11 is a serial interface corresponding to the USB standard, and is electrically connected to the USB memory C when the USB memory C is attached. The USB port 11 inputs and outputs electronic files to and from the USB memory C under the control of the CPU 1 when connected to the USB memory C.
The USB memory operation history information storage unit 12 is, for example, a flash memory or a hard disk, and a USB memory operation history information table in which operation history information of the USB memory C and other USB memories (not shown) is registered under the control of the CPU 1. Remember.

  FIG. 3 is a schematic diagram showing the USB memory operation history information table. As shown in FIG. 3, the USB memory operation history information table is a data table in which a USB memory serial number and USB memory operation history information are registered for each USB memory operation history information number. In this USB memory operation history information table, every time the USB memory C attached to the USB port 11 is operated, the CPU 1 displays the USB memory serial number indicating the serial number of the USB memory C and the USB memory operation history information. The operation content of the USB memory C and the operation time of the USB memory C are registered.

  The operation contents of the USB memory operation history information include “attachment (attachment of the USB memory C to the USB port 11)”, “write (writing of an electronic file to the USB memory C)”, “read” (reading of the USB memory C). One of “reading of electronic file)”, “erasing (erasing of electronic file in USB memory C)” and “removing (removing USB memory C from USB port 11)” is registered.

  Furthermore, when “write”, “read”, and “erase” are registered as operation contents, the operation target file name indicating the file name of the operation target electronic file is registered in the USB memory operation history information. The USB memory operation history information number is an identification number assigned when the USB memory serial number and USB memory operation history information are registered in the USB memory operation history information table.

Next, operations of the multi-function device B and the terminal device D in the storage medium management system A having the above configuration will be described in detail with reference to the sequence diagrams of FIGS. 4 and 5 are sequence diagrams showing operations of the multifunction peripheral B and the terminal device D of the storage medium management system A according to the present embodiment.
First, a user who wants to print an electronic file stored in the USB memory C by the multifunction device B attaches the USB C to the USB port 11 of the multifunction device B.

  Then, the user selects the electronic file to be printed from the electronic files stored in the USB memory C by operating the operation screen displayed on the touch panel 10a and / or the operation key of the operation display unit 10, and the operation display unit Pressing the state key 10 causes the multifunction device B to print the selected electronic file. Then, the CPU 1 of the multifunction peripheral B reads the electronic file to be printed from the USB memory C via the USB port 11 and causes each unit such as the image forming unit 8 to execute a printing operation based on the electronic file.

  After completing the printing operation, the CPU 1 determines whether or not the USB memory C is removed from the USB port 11 (step S1). If it is determined “YES” in step S1, that is, the USB port 11 to the USB memory C. Is removed, the process waits until the operation display unit 10 receives a print instruction. If the CPU 1 determines “NO” in step S 1, that is, if the USB memory C remains attached to the USB port 11, the CPU 1 waits for a predetermined time after finishing the printing operation. It is determined whether or not the operation display unit 10 has received a data operation instruction for the USB memory C (step S2). The data operation instruction in step S2 is an operation instruction in which the CPU 1 executes writing to the electronic file, reading of the electronic file, and erasing of the electronic file in the USB memory C. That is, a print instruction received by the operation display unit 10 when the start key is pressed is also included in the data operation instruction.

  If the CPU 1 determines “YES” in step S 2, that is, if the operation display unit 10 receives a data operation instruction for the USB memory C during a predetermined time from the end of the printing operation, the operation display Wait until the unit 10 receives a print instruction. If the CPU 1 determines “NO” in step S2, that is, if the operation display unit 10 does not accept the data operation instruction of the USB memory C within a predetermined time after the end of the printing operation, the USB memory C A forgetting notification mail is created that uses the e-mail address of the terminal device D registered in the e-mail address registration file stored as the destination and notifies that the USB memory C has been forgotten (step S3). .

Specifically, in step S3, the CPU 1 reads an e-mail address from the e-mail address registration file stored in the USB memory C through the USB port 11, sets the e-mail address as an e-mail transmission destination, Further, a forgetting notification mail is created by setting a message for notifying that the USB memory C stored in the ROM 2 has been forgotten to be removed in the body and subject of the electronic mail.
After step S3, the CPU 1 causes the communication I / F unit 9 to transmit a forgetting notification mail to the terminal device D (step S4). In step S3, the CPU 1 places the serial number read from the USB memory C in a forgetting notification mail.

 When the terminal device D receives the forgetting notification email from the multifunction device B, the terminal device D displays the forgetting notification email on the display (step S5). A reply mail with the serial number of the USB memory C included in the forgetting notification mail is created (step S6) and the reply mail transmission instruction is given. The reply mail is transmitted to the multi-function device B (step S7).

  When the communication I / F unit 9 receives the reply mail from the terminal device D, the CPU 1 of the multifunction machine B matches the serial number of the USB memory C attached to the USB port 11 and the serial number included in the reply mail. (Step S8), if “YES” is determined in step S8, that is, the serial number of the USB memory C attached to the USB port matches the serial number included in the reply mail. In step S9, all electronic files stored in the USB memory C attached to the USB port 11 are deleted.

  Then, after step S9, the CPU 1 uses the e-mail address of the terminal device D that is the transmission source of the reply mail as the transmission destination, and notifies that the deletion of the electronic file stored in the USB memory C is successful. A mail is created (step S10), and the deletion success notification mail is transmitted to the terminal device D to the communication I / F unit 9 (step S11). In step S10, the CPU 1 places USB memory operation history information corresponding to the serial number included in the reply mail in the deletion success notification mail based on the USB memory operation history information table.

  For example, when the serial number of the USB memory C is included in the reply mail from the terminal device D and the serial number of the USB memory C is “A6400”, the USB of the USB memory operation history information table shown in FIG. USB memory operation history information with memory operation history information numbers “0001” to “0005” is included in the deletion success notification mail.

  If the CPU 1 determines “NO” in step S8, that is, the USB memory C is not attached to the USB port 11, or the serial number of the USB memory C attached to the USB port and the reply mail are listed. If the serial numbers do not match, the electronic file stored in the USB memory C is stored in the electronic mail address of the terminal device D that is the transmission source of the reply mail without being erased. An erasure failure notification mail for notifying that the erasure of the file has failed is created (step S12), and the erasure failure notification mail is transmitted to the terminal device D via the communication I / F unit 9 in step S11.

Similarly to step S10, the CPU 1 places USB memory operation history information corresponding to the serial number included in the reply mail in the deletion failure notification mail based on the USB memory operation history information table in step S12.
When the terminal device D receives the deletion success notification mail or the deletion failure notification mail from the multi-function device B in step S11, the terminal device D displays the deletion success notification mail or the deletion failure notification mail on the display (step S13).

  As described above, in the storage medium management system A according to the present embodiment, the operation is performed for a predetermined time after the print operation is finished in a state where the USB memory C is still attached to the USB port 11. If the display unit 10 has not received a data operation instruction for the USB memory C, it is determined that the USB has been forgotten, and the e-mail address of the terminal device D registered in the e-mail address registration file stored in the USB memory C And a forgetting notification mail for notifying that the USB memory C has been forgotten, is created, and the forgetting notification mail is transmitted to the terminal device D to the communication I / F unit 9.

  As in the past, it was not possible to recognize the notification when the user left the device by simply notifying the user that the USB memory C had been forgotten by sounding a warning sound and displaying a warning screen. Thus, by notifying the user that the USB memory C has been forgotten by e-mail, the user can recognize that the USB memory C has been forgotten by e-mail. Can also recognize that the USB memory C has been forgotten. In this way, by sending a forgotten mail from the multifunction device B to the user, the forgetting to remove the USB memory C is prevented. Security can be improved.

  Further, when the CPU 1 of the multifunction device B receives the reply mail of the forgetting notification mail, if the serial number included in the reply mail matches the serial number of the USB memory C, the electronic file stored in the USB memory C is sent to the user. Even if the user is in a place where the user cannot immediately remove the USB memory C from the multi-function device B because the electronic file in the USB memory C is erased because it is determined that there is an intention to erase the USB memory C, Since the electronic file in the memory C can be deleted, the prevention of leakage of information stored in the USB memory C is enhanced, so that information security can be further improved.

  Further, the CPU 1 of the multi-function device B causes the communication I / F unit 9 to transmit a deletion success notification mail or a deletion failure notification mail to the terminal device D according to the success or failure of the deletion of the electronic file stored in the USB memory C. By placing the USB memory operation history information of the USB memory C in the deletion success notification mail or the deletion failure notification mail, the user can confirm that the USB memory C has been operated by a third party along with the success or failure of the deletion of the electronic file in the USB memory C. Since it is possible to know immediately, it is possible to quickly cope with leakage of information stored in the USB memory C.

As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, For example, the following modifications can be considered.
(1) When the CPU 1 of the MFP B of the above embodiment detects that the USB memory C is forgotten to be removed, the CPU 1 notifies the USB memory C that the user has forgotten to remove the USB memory C. It is not limited to.

  The CPU 1 is not limited to the USB memory C, and can store any storage medium such as an SD card, compact flash (registered trademark), memory stick, smart media, floppy (registered trademark) disk, CD-RW, DVD-RW, and MO disk. When forgetting is detected, the communication I / F unit 9 may be made to send a forgetting notice mail for notifying that the storage medium is forgotten to be taken as an e-mail address stored in the storage medium. And CPU1 may be made to perform the said operation, if the reply mail of the notification mail forgetting to receive is received.

(2) In the above-described embodiment, the electronic apparatus according to the present invention is applied to the multi-function device B which is one of the image forming apparatuses. However, the present invention has an interface for connecting to a storage medium and is electronic. Any electronic device such as a personal computer and a portable terminal can be used as long as it has a mail transmission / reception function. In the storage medium management system A of the above embodiment, the terminal device D is a desktop or notebook personal computer, but may be a portable terminal or the like as long as it has a function of transmitting and receiving electronic mail. .

(3) In the MFP B of the above embodiment, every time the USB memory C is operated, the CPU 1 registers the operation content, the operation target file name, and the operation time as USB operation history information in the USB memory operation history information table. However, the present invention is not limited to this.
For example, when the multi-function device B needs to log in with an authentication card or the like to execute various operations, the CPU 1 registers it as the user identification information of the user who operated the USB memory C in the authentication card. The information such as the card number may be registered in the USB memory operation history information table as USB operation history information together with the operation content, operation target file name, and operation time.

  Then, as the USB operation history information, the user identification information together with the operation contents, the operation target file name and the operation time is put on the deletion success notification mail and the deletion failure notification mail and transmitted to receive the deletion success notification mail or the deletion failure notification mail. The user can specify the third party who operates the USB memory C together with the operation content and operation time. As a result, even if information in the USB memory C is leaked, it is possible to specify a user who has a high possibility of leaking the information.

(4) In the MFP B of the above embodiment, the CPU 1 erases all the electronic files stored in the USB memory C, but the present invention is not limited to this.
For example, the CPU 1 creates a forget-notification notification mail that is formed with HTML (Hyper Text Markup Language) and has a list of electronic files that are stored in the USB memory C, and sends the forget-notification mail to the communication I / F. The data is transmitted to the unit 9.

  Then, when the terminal device D receives this forgetting-notifying mail, the user who is the owner of the terminal device D may delete it from the list of electronic files included in the forgetting-notifying mail in HTML format. The check box of the electronic file is sent to the terminal device D as a reply mail. Then, based on the reply mail received by the communication I / F unit 9, the CPU 1 of the multi-function peripheral B deletes only the electronic file whose check box is checked from the USB memory C. Thus, the user does not have to delete an electronic file that does not need to be deleted from the electronic files stored in the USB memory C.

(5) When the CPU 1 of the MFP B of the above embodiment detects that the USB memory C is forgotten to be removed, the CPU 1 notifies the user that the USB memory C has been forgotten by a forgetting notification email. However, the present invention is not limited to this. Not.
For example, when the sound generating unit configured by a speaker is provided in the multi-function device B and the CPU 1 detects that the USB memory C is forgotten to be removed, the CPU 1 causes the communication I / F unit 9 to transmit a forgetting notification mail and forgets to remove the sound from the sound generating unit. You may be made to perform both or any one of the ringing of a notification sound and the display of the notification screen for forgetting to take with the touch panel 10a.

  In addition, after detecting the forgetting to remove the USB memory C, the CPU 1 first executes either or both of the sound of the forgetting to remove notification sound by the sound generation unit and the display of the forgetting to remove notification screen by the touch panel 10a, and executes a predetermined time. Even if the USB memory C is not removed from the USB port 11 and the operation display unit 10 cannot attach a data operation instruction for the USB memory C, the communication I / F unit 9 sends a forgetting notification mail to the terminal device D. You may make it transmit to.

1 is a system configuration diagram of a storage medium management system A according to an embodiment of the present invention. 3 is a functional block diagram of a multifunction peripheral B of the storage medium management system A according to an embodiment of the present invention. FIG. It is a schematic diagram which shows the USB memory operation log | history information table of the multifunctional machine B of the storage medium management system A which concerns on one Embodiment of this invention. It is a sequence diagram which shows operation | movement of the multifunctional machine B and the terminal device D of the storage medium management system A which concern on one Embodiment of this invention. FIG. 6 is a sequence diagram (continuation of FIG. 4) showing operations of the multifunction peripheral B and the terminal device D of the storage medium management system A according to the embodiment of the present invention.

Explanation of symbols

  A ... Storage medium management system, B ... Multifunction machine, C ... USB memory, D ... Terminal device, E ... Public network, 1 ... CPU, 2 ... ROM, 3 ... RAM, 4 ... Various sensor groups, 5 ... Paper transport unit , 6 ... Image reading unit, 7 ... Image data storage unit, 8 ... Image forming unit, 9 ... Communication I / F unit, 10 ... Operation display unit, 10a ... Touch panel, 11 ... USB port, 12 ... USB memory operation history information Memory

Claims (8)

An electronic device having a storage medium interface connected to a removable storage medium,
A communication unit communicating with the outside;
When a storage medium is connected to the storage medium interface, if the storage medium data operation instruction is not received within a predetermined time after the data operation of the storage medium is completed, the storage medium stores the data. A control unit that causes the communication unit to send a forgetting notification email that notifies the user that the storage medium is forgotten to be removed, with the e-mail address being sent as a destination.
Equipped ,
The electronic device according to claim 1, wherein when the communication unit receives a reply mail of the forgetting notification mail, the control unit erases data stored in the storage medium . The electronic device according to claim 1, wherein the control unit erases only data designated by the reply mail from the storage medium . The control unit deletes the data in the storage medium when the individual identification information of the storage medium connected to the storage medium interface matches the individual identification information included in the reply mail. The electronic apparatus according to claim 1 , wherein the electronic apparatus is characterized in that: When the data stored in the storage medium is erased, the control unit causes the communication unit to transmit a deletion success notification mail notifying that the reply mail is a transmission destination and notifying that the deletion is successful. When the data stored in the storage medium cannot be erased, the communication unit is caused to transmit an erasure failure notification mail notifying that the erasure has failed, with the sender of the reply mail as a transmission destination. The electronic apparatus according to claim 1, wherein the electronic apparatus is characterized in that: A storage unit for storing operation history information of the storage medium;
The control unit stores the operation history information in the storage unit according to an operation of the storage medium, and the operation history information of the storage medium stored in the storage unit includes the deletion success notification mail and the deletion failure notification. The electronic device according to claim 4 , wherein the electronic device is placed in an e-mail . The control unit stores the operation content, operation target data name, and operation time in the storage unit as the operation history information, and the operation content, operation target data name, and operation time are stored as the operation history information in the deletion success notification mail and The electronic device according to claim 5, wherein the electronic device is included in the deletion failure notification mail . The control unit stores user identification information of a user who has operated the storage medium as the operation history information in the storage unit, and the user identification information as the operation history information includes the deletion success notification mail and the deletion failure notification mail. the electronic device according to claim 6, characterized in that placed on. An electronic device according to any one of claims 1 to 7,
A storage medium that stores an email address and is connected to the storage medium interface of the electronic device;
The e-mail address stored in the storage medium is its own, and a terminal device that transmits / receives e-mail to / from the electronic device,
A storage medium management system comprising:

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