JP2007065842A - Electrical apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the leakage of secret information in the case of movement, discarding and update of a facsimile machine. <P>SOLUTION: A casing for storing a substrate 80 mounted with a data memory 36 where secret information such as an abbreviated button number is stored is configured of a lower casing 83 and an upper casing 84. The substrate 80 is housed in the lower casing 83, and the backup power source 37 of the data memory 36 is mounted on the casing 84, and the both casings 83 and 84 are separated from each other so that power supply from the backup power source 37 to the data memory 36 can be interrupted. Therefore, it is possible to erase secret information by a simple operation only to open the upper casing 84 without making it necessary to perform any troublesome operation in carrying it out, and it is possible to prevent the unwanted leakage of the secret information in the case of discard or reuse, and to improve security. Therefore, it is possible to erase the data while a power source is tuned off. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to electrical equipment, and more particularly to management of confidential information associated with disposal or renewal.

  As an electrical device that handles the confidential information, for example, in a facsimile apparatus, information necessary for facsimile communication such as registration of a destination button or a shortened button of a facsimile number can be stored in a storage unit in advance. It has become. Therefore, if the confidential information such as the destination name and the facsimile number is not properly processed when the facsimile apparatus is moved, discarded, or updated, the confidential information may be undesirably undesirably discarded or reused. It will leak.

Therefore, Patent Document 1 is an example of such a method for erasing confidential information. In this prior art, when an operation such as a change of the line type or a change of the transmission source number is performed, it is determined that it has been moved, and the initialization mode is started. Configured to initialize content.
JP 2001-186239 A

  The above-described prior art performs initialization so that a new shortcut button can be easily registered when moving to another department or the like, and is not intended to protect confidential information. That is, in the case of relocation, the next installation location of the facsimile machine is also in the same company, and it is unlikely that it will be a problem even if the customer information of the customer is known in other departments. On the other hand, in the case of disposal or particularly renewal due to lease expiration, the removed aircraft is highly likely to be reused, and there is a high possibility that confidential information will flow out undesirably.

  The objective of this invention is providing the electric equipment which can erase | eliminate confidential information reliably.

  The electric device according to the present invention can retain the stored content when power is supplied. In the electric device having the storage means for storing confidential information, the storage means stores the content when the power is supplied. Comprising a storage unit that holds the substrate on which the storage unit is mounted, and is configured by an assembly of a plurality of housing parts, and the substrate is mounted on one of the housing parts, On the other hand, a backup power supply for holding the stored contents is mounted, and both casing parts are separated from each other, whereby the power supply from the backup power supply to the storage means is cut off.

  According to the above configuration, the stored contents can be retained by the power supply, and in the electrical apparatus having the storage means for storing the confidential information, the storage means is supplied with power such as SRAM (Static RAM). And a storage means capable of holding the stored contents by being configured, and a housing for storing the substrate on which the storage means is mounted is configured from an assembly of a plurality of housing parts, The power supply from the backup power supply to the storage means is shut off by mounting the board on one side and the backup power supply for holding the stored contents on the other side and separating the housing parts from each other. Make sure that

  Therefore, when the electrical equipment is moved, discarded, updated, etc., it is possible to erase confidential information all at once with a simple operation of separating the casing parts from each other and opening the casing. It is possible to prevent the confidential information from leaking undesirably during reuse and improve security.

  In addition, the electric device according to the present invention can retain the stored contents when power is supplied. In the electric device having storage means for storing confidential information, the storage means is supplied with power. A storage unit configured to hold storage contents; and a housing for storing a substrate on which the storage unit is mounted is configured by an assembly of a plurality of housing parts, and the substrate and A backup power supply for holding stored contents is mounted, and on the other side, a part of a power feed line from the backup power supply to the storage means is formed, and both housing parts are separated from each other, thereby the storage from the backup power supply The power supply to the means is cut off.

  According to the above configuration, the stored contents can be retained by supplying power, and in the electrical apparatus having the storage unit for storing confidential information, the storage unit is supplied with power such as SRAM. A storage means that can hold the stored contents, and a housing that houses the substrate on which the storage means is mounted is configured from an assembly of a plurality of housing portions, and the substrate is provided on one of the housing portions. Power supply from the backup power supply to the storage means by forming a part of a power feed line from the backup power supply to the storage means on the other side and separating both casing parts from each other Is to be blocked.

  Therefore, when the electrical equipment is moved, discarded, updated, etc., it is possible to erase confidential information all at once with a simple operation of separating the casing parts from each other and opening the casing. It is possible to prevent the confidential information from leaking undesirably during reuse and improve security.

  Furthermore, in the electric device according to the present invention, the casing includes a casing main body that stores one or more substrates and a lid, and the storage unit is mounted on the uppermost layer of the substrate stored in the casing main body. And a pair of contact pieces for power supply extending from the substrate toward the lid, and the lid is provided with a pair of contact pieces for power supply toward the substrate, By opening the lid, the contact pieces are separated from each other, and power supply from a backup power source to the storage means is cut off.

  According to said structure, the electric equipment which can erase | eliminate the said confidential information collectively can be implement | achieved by simple structure by the simple operation | work which isolate | separates a housing | casing part mutually and opens a housing | casing.

  In the electric device according to the present invention, the confidential information is information required when performing facsimile communication, and is a facsimile apparatus.

  According to the above configuration, in a facsimile apparatus capable of storing information necessary for performing facsimile communication, for example, the confidential information such as the destination name and facsimile number of the abbreviated button registration in the storage unit in advance. It is extremely effective that confidential information can be erased at once as described above.

  As described above, the electric device according to the present invention can retain the stored contents when power is supplied. In the electric device having the storage means for storing confidential information, the storage means is supplied with power such as SRAM. And a storage means capable of holding the stored contents by being configured, and a housing for storing the substrate on which the storage means is mounted is configured from an assembly of a plurality of housing parts, The power supply from the backup power supply to the storage means is shut off by mounting the board on one side and the backup power supply for holding the stored contents on the other side and separating the housing parts from each other. Make sure that

  Therefore, when transferring, disposing, or renewing the electrical equipment, it is possible to erase confidential information all at once by a simple operation of separating the casing parts from each other and opening the casing. It is possible to prevent the confidential information from leaking undesirably in the case of reuse or the like and improve the security.

  Further, as described above, the electric device according to the present invention can retain the stored contents by supplying power, and in the electric device having the storage means for storing confidential information, the storage means is a power source such as an SRAM. The housing is configured by a storage unit capable of holding the stored contents by being supplied, and a housing for storing the substrate on which the storage unit is mounted is configured by an assembly of a plurality of housing parts, and the housing The circuit board and the backup power source are mounted on one of the parts, the other part of the power supply line from the backup power source to the storage means is formed on the other side, and the housing parts are separated from each other, thereby The power supply to the storage means is cut off.

  Therefore, when transferring, disposing, or renewing the electrical equipment, it is possible to erase confidential information all at once by a simple operation of separating the casing parts from each other and opening the casing. It is possible to prevent the confidential information from leaking undesirably in the case of reuse or the like and improve the security.

[Embodiment 1]
FIG. 1 is a longitudinal sectional view showing a mechanical configuration of a multifunction machine 1 which is an electrical apparatus according to a first embodiment of the present invention. The multi-function peripheral means an image forming apparatus having a plurality of functions related to image formation such as a copying function, a printer function, a facsimile function, and a scanner function. The multifunction device 1 generally includes a main body unit 200, a sheet post-processing unit 300 disposed on the left side of the main body unit 200, an operation unit 400 for a user to input various operation commands and the like, A document reading unit 500 disposed on the top of the unit 200 and a document feeding unit 600 disposed above the document reading unit 500 are configured.

  The operation unit 400 includes a touch panel 401, a start key 402, a numeric keypad 403, and the like. The touch panel 401 displays various operation screens including a screen for setting the enlargement / reduction ratio and copy density, and displays various operation buttons for the user to input various operation commands. The start key 402 is used for the user to input a print execution command and the like, and the ten key 403 is used for inputting the number of copies to be printed.

  The document feeding unit 600 includes a document placement unit 601, a document discharge unit 602, a paper feed roller 603, a document transport unit 604, and the like, and the document reading unit 500 includes a scanner 501 and the like. The paper feed roller 603 feeds the original set on the document placement unit 601, and the document transport unit 604 transports the fed document one by one on the scanner 501 one by one. The scanner 501 sequentially reads the conveyed document, and the read document is discharged to the document discharge unit 602.

  The main body 200 includes a plurality of paper feed cassettes 201, a plurality of paper feed rollers 202, a transfer roller 203, an intermediate transfer body roller 204, a photosensitive drum 205, an exposure device 206, and yellow, magenta, cyan, and black colors. Developing devices 207Y, 207M, 207C, and 207K, a fixing roller 208, a discharge port 209, and a discharge tray 210 are provided.

  The photosensitive drum 205 is uniformly charged by a charging device (not shown) while rotating in the direction of the arrow. The exposure device 206 converts the modulation signal generated based on the image data of the original read by the original reading unit 500 into a laser beam and outputs it, and forms an electrostatic latent image on the photosensitive drum 205 for each color. The developing devices 207Y, 207M, 207C, and 207K supply each color developer to the photosensitive drum 205 to form a toner image for each color. The intermediate transfer roller 204 is transferred with the toner image of each color from the photosensitive drum 205, and a color toner image is formed on the intermediate transfer roller 204.

  On the other hand, the paper feeding roller 202 pulls out the recording paper from the paper feeding cassette 201 in which the recording paper is stored, and feeds the recording paper to the transfer roller 203. The transfer roller 203 transfers the toner image on the intermediate transfer body roller 204 onto the conveyed recording paper, and the fixing roller 208 heats and fixes the transferred toner image on the recording paper. Thereafter, the recording paper is carried into the paper post-processing unit 300 from the discharge port 209 of the main body unit 200. The recording paper is also discharged to the discharge tray 210 as necessary.

  The paper post-processing unit 300 includes a carry-in port 301, a recording paper transport unit 302, a carry-out port 303, a stack tray 304, and the like. The recording paper transport unit 302 sequentially transports the recording paper carried into the carry-in port 301 from the discharge port 209 and finally ejects the recording paper from the carry-out port 303 to the stack tray 304. The stack tray 304 is configured to move up and down in the direction of the arrow in accordance with the number of recording sheets stacked from the carry-out port 303.

  FIG. 2 is a block diagram showing an electrical configuration of the multifunction machine 1 configured as described above. In general, the MFP 1 includes a scanner unit 11, an image processing unit 21, a printer unit 31, a data memory 36, a control unit 41, an operation panel unit 51, a facsimile communication unit 61, a network I / F unit 71, a parallel I / F unit 72, serial I / F unit 73 and HDD (hard disk drive) 74.

  The scanner unit 11, the image processing unit 21, the data memory 36, the control unit 41, the operation panel unit 51, and the network I / F unit 71 are the operation unit 400, the document reading unit 500, and the document feeding unit shown in FIG. These units correspond to 600, and a network scanner function for transmitting captured image data to a predetermined IP address is realized. The scanner unit 11, the image processing unit 21, the printer unit 31, the data memory 36, the control unit 41, the operation panel unit 51, and the facsimile communication unit 61 include the main body unit 200, the operation unit 400, and the document reading shown in FIG. It corresponds to the unit 500 and the document feeding unit 600, and a facsimile function is realized by these units. Furthermore, the image processing unit 21, the printer unit 31, the control unit 41, the operation panel unit 51, the network I / F unit 71, and the parallel I / F unit 72 are added to the main body unit 200 and the operation unit 400 shown in FIG. Correspondingly, a printer function is realized by these units. The scanner unit 11, the image processing unit 21, the printer unit 31, the control unit 41, and the operation panel unit 51 include a main body unit 200, a sheet post-processing unit 300, an operation unit 400, an original reading unit 500, These units correspond to the document feeding unit 600, and a copy function is realized by these units.

  The operation panel unit 51 is used for a user to perform operations related to a copy function, a printer function, a facsimile function, a scanner function, and the like, and gives an operation command (command) or the like by the user to the control unit 41. The operation panel unit 51 includes a display unit 52 having a touch panel and the like, and an operation key unit 53 having a start key, a numeric keypad, and the like. The display unit 52 includes a touch panel unit capable of color display combining a touch panel and an LCD (Liquid Crystal Display), etc., displays various operation screens and enables input operations. For example, a facsimile function At the time of execution, information on user selection, transmission destination selection, transmission setting, and the like is displayed, and operation buttons and the like for inputting various operation commands by the user touching the part are displayed. The operation key unit 53 is used for inputting various instructions such as a copy execution start command or a facsimile transmission start command by the user.

  The scanner unit 11 optically acquires a document image and generates image data. The scanner unit 11 includes an exposure lamp 12 and a CCD (charge coupled device) 13. The scanner unit 11 irradiates the document with the exposure lamp 12 and receives the reflected light with the CCD 13, thereby reading the document image and outputting image data corresponding to the read image to the image processing unit 21. The scanner unit 11 may be capable of reading not only monochrome originals but also color originals and photographic originals.

  The image processing unit 21 performs various image processing on the image data. For example, the image processing unit 21 performs predetermined correction processing such as level correction and γ correction, image data compression or expansion processing, enlargement or reduction processing on image data obtained by being read by the scanner unit 11. Various image processing (processing processing) is performed. The image processing unit 21 includes an image memory 22 and stores processed image data or the like in the image memory 22 or outputs it to the printer unit 31, the facsimile communication unit 61, the network I / F unit 71, or the like.

  The printer unit 31 receives original image data read by the scanner unit 11, image data received from an external personal computer or the like via the network I / F unit 71, and received from an external facsimile apparatus by the facsimile communication unit 61. An image corresponding to image data such as fax data is printed on a predetermined recording sheet. The printer unit 31 includes a paper transport unit 32 having a paper feed cassette and paper feed rollers, an image transfer unit 33 having an intermediate transfer body roller, a photosensitive drum, an exposure device, a developing device, etc., a transfer unit having a transfer roller, etc. 34, and a fixing unit 35 having a fixing roller and the like. Specifically, the paper transport unit 32 transports the recording paper to the image forming unit 33, the image forming unit 33 forms a toner image corresponding to the image data, and the transfer unit 34 transfers the toner image to the recording paper. The fixing unit 35 fixes the toner image on the recording paper to form an image.

  The data memory 36 is a storage means that stores in advance the destination name and the facsimile number of the short button registration when performing facsimile communication, and also the IP address of the transmission destination when used as a network scanner. I remember it. These stored contents can be appropriately rewritten by the control unit 41 by an input operation to the operation panel unit 51.

  The control unit 41 stores, in a CPU (Central Processing Unit) (not shown), a RAM (Random Access Memory) or ROM (Read Only Memory) that stores a program that defines the operation of the CPU, and temporarily. Peripheral devices such as a storage unit such as a RAM for storing data are included. As a result, the control unit 41 controls the entire multifunction device 1 in accordance with the instruction information received by the operation panel unit 51 and the like and the detection signals from the sensors provided in various parts of the multifunction device 1. More specifically, the control unit 41 functions as a scanner controller 42, a facsimile controller 43, a printer controller 44, and a copy controller 45.

  Programs for realizing the functions described above when read by the computer as the control unit 41 are stored in a non-volatile and large-capacity external storage device such as the HDD 74, and transferred to the main storage device such as the RAM as appropriate. By doing so, it is also possible to provide execution by the CPU. The program can be supplied through a recording medium such as a ROM or a CD-ROM, or can be supplied through a transmission medium such as a network connected to the network I / F unit 71. The transmission medium is not limited to a wired transmission medium, and may be a wireless transmission medium. The transmission medium includes not only a communication line but also a relay device that relays the communication line, for example, a communication link such as a router.

  When the program is supplied through the ROM, the ROM in which the program is recorded is mounted on the control unit 41 so that the program can be executed by the CPU. When the program is supplied through a CD-ROM, the CD-ROM reader can be connected to, for example, the parallel I / F unit 72 and transferred to the RAM or HDD 74 for execution by the CPU. it can. When the program is supplied through a transmission medium, the program received through the network I / F unit 71 can be transferred to the RAM or the HDD 74 for execution by the CPU.

  The scanner controller 42 controls the operation of each unit used to realize the scanner function. The facsimile controller 43 controls the operation of each unit used to implement the facsimile function. The printer controller 44 controls the operation of each unit used for realizing the printer function. The copy controller 45 controls the operation of each unit used for realizing the copy function.

  The facsimile communication unit 61 includes an encoding / decoding unit (not shown), a modem unit (not shown), and an NCU (Network Control Unit) (not shown), and an image of a document read by the scanner unit 11. Data is transmitted to another facsimile apparatus via a telephone line or an Internet line, or image data transmitted from another facsimile apparatus is received. The encoding / decoding unit compresses and encodes image data to be transmitted, and decompresses and decodes received image data. The modem unit modulates the compressed and encoded image data into an audio signal. Or a received signal (audio signal) is demodulated into image data. The NCU controls connection via a telephone line with a facsimile apparatus as a transmission / reception destination.

  The network I / F unit 71 uses a network interface (for example, 10 / 100Base-TX) or the like to control transmission / reception of various data to / from a user side server connected via the network. When one or more terminal devices (not shown) such as a personal computer are connected to the network, the network I / F unit 71 controls transmission / reception of various data to / from these terminal devices. For example, the network I / F unit 71 transmits document image data read by the scanner unit 11 to the terminal device or receives image data sent from the terminal device for printing by the printer unit 31.

  The parallel I / F unit 72 receives print data or the like from an external device or the like by parallel transmission in which data is transmitted in units of a plurality of bits using a plurality of signal lines using a high-speed bidirectional parallel interface (for example, conforming to IEEE 1284). It is to be equal. The serial I / F unit 73 uses a serial interface (for example, RS-232C) or the like, and receives various data from an external device or the like by serial transmission that sequentially transmits data bit by bit using a single signal line. To do.

  The HDD 74 stores image data read by the scanner unit 11, image data transmitted via a network, an output format set for the image data, and the like. The image data stored in the HDD 74 is not only used in the multifunction device 1 but also confirmed by the terminal device or transferred to a predetermined folder of the terminal device via the network I / F unit 71. For use in the terminal device.

  In the multifunction machine 1, various functions are realized by combining the above-described functions. For example, a PC transmission function, an E-mail transmission function, a FAX transmission function, or the like may be realized as the scanner function. Here, the PC transmission function is a function for directly transmitting image data read from a document to an arbitrary terminal device or the like via a network. The E-mail transmission function transmits image data read from a document as an attached file of an e-mail directly to, for example, an SMTP server (not shown) via a network, and from the SMTP server to an arbitrary external device via the network. This is a function for transmitting image data read from a document as an attached file of an electronic mail by transmitting the electronic mail to a terminal device or the like. The FAX transmission function is a function for directly transmitting image data read from a document to an arbitrary facsimile machine or the like via a telephone line or the like.

  In the multi-function device 1 configured as described above, the data memory 36 stores information necessary for the facsimile controller 43 to perform facsimile communication, such as a destination name for registration of a shortened button and a facsimile number. It is stored in advance by an input operation from the panel unit 51, and also stores the destination address of the link destination when the scanner controller 42 performs the network scanner operation.

  The data memory 36 is composed of storage means capable of holding stored contents by power supply such as SRAM (Static RAM) or EEPROM (Electrically Erasable Programmable Read Only Memory) as shown in FIG. When the internal power supply Vcc rises, the stored contents are held by the internal power supply Vcc, and when the supply of the internal power supply Vcc is cut off, the stored contents are held by the power supply from the backup power supply 37. Therefore, as shown in FIG. 3, a small-capacity surge absorbing capacitor 38 is provided in parallel with the data memory 36, and power is supplied from the backup power source 37 via the diode 39.

  The data memory 36 consumes power at the time of rewriting, but the internal power supply Vcc is supplied during that time, and only a voltage is applied to hold the stored contents, and there is almost no power consumption. For this reason, the backup power source 37 is composed of a lithium primary battery or the like, and can be backed up for the life of the multifunction device 1.

  It should be noted that, in the present embodiment, as shown in FIG. 4, a housing for storing the substrate 80 on which the data memory 36 is mounted is constituted by an assembly of a plurality of housing portions, and the housing portion The board 80 is mounted on one side, the backup power source 37 is mounted on the other side, and both casing parts are separated from each other, whereby the power supply from the backup power source 37 to the data memory 36 is cut off. Is to do so.

  In the present embodiment, the casing portion includes a lower casing 83 that is a casing main body that houses one or a plurality of substrates (in FIG. 4, three sheets 80, 81, and 82), and an upper casing that is a lid. 84. Then, the uppermost substrate of the substrates 80, 81, 82 accommodated in the lower housing 83 is a substrate 80 on which the data memory 36 is mounted, and power is supplied from the substrate 80 toward the upper housing 84. A pair of contact pieces T1, T2 are extended, and the backup power source 37 is fastened to the upper casing 84 by a band 85 as shown in FIG. 5, toward the contact pieces T1, T2. The electrodes 37a and 37b form a pair of contact pieces for power feeding.

  A hook 86 is attached to one of the housings 83 and 84 (upper housing 84 in FIG. 4), and an engagement piece 87 is attached to the other (lower housing 83 in FIG. 4). A connector 88 is attached to the lower housing 83 that accommodates the substrates 80, 81, 82. These boards 80 on which the image processing unit 21, data memory 36, control unit 41, facsimile communication unit 61, network I / F unit 71, parallel I / F unit 72, serial I / F unit 73, HDD 74, and the like are mounted. , 81 and 82 are housed in the main body 200 as shown in FIG. 1, and the connector 88 is mounted on the main body 200 side. The connector 88 can be fitted and operated, and the connector 88 is detached from the connector on the main body 200 side by being pulled out.

  In the multi-function machine 1 configured as described above, when the casings 83 and 84 are assembled together, as shown in FIG. 6, the electrodes 37a and 37b of the backup power source 37 are respectively connected to the contact pieces T1 and T2. The stored contents of the data memory 36 can be backed up when the internal power supply Vcc is shut off.

  On the other hand, when the control unit 90 is first pulled out from the main body 200 when the multifunction device 1 is moved, discarded, updated, etc., the connector 88 is detached from the connector on the main body 200 side, and the internal power supply Vcc. Is cut off. In this state, the electrodes 37a and 37b of the backup power source 37 are connected to the contact pieces T1, by releasing the engaging piece 87 from the hook 86 and releasing the upper casing 84 from the lower casing 83. Apart from T2, confidential information such as the destination name and facsimile number can be erased all at once. Accordingly, it is possible to prevent the confidential information from being undesirably leaked when the multifunction device 1 is discarded or reused, thereby improving the security. In addition, erasing can be performed even when the power is cut off, and erasing can be performed after the multifunction device 1 is removed.

  In the example of FIG. 5, the backup power source 37 is attached to the upper casing 84 by fastening with a band 85. However, as shown in FIG. Also good. When the upper housing 84 is attached to the lower housing 83, as shown in FIG. 8, the contact pieces T11 and T12 on the battery holder 91 side that are in contact with the electrodes 37a and 37b of the backup power source 37 are further connected to the substrate 80 side. Contact pieces T1 and T2 respectively.

  While the positioning of the backup power source 37 is difficult by fastening with the band 85, the mounting operation of the backup power source 37 can be easily performed by using the battery holder 91 in this way.

  Even if the backup power supply 37 is disconnected by a small-capacity surge absorbing capacitor 38 provided in parallel with the data memory 36, the contents stored in the data memory 36 are shortly opened and closed. 3, a discharge resistor 40 may be provided in parallel with the capacitor 38 as shown in FIG. 3. In this case, for example, the capacitance of the capacitor 38 is 1 μF, and the resistance value of the discharge resistor 40 is 1 MΩ. Then, the discharge is completed in 1 second. Alternatively, as shown in FIG. 3, the contact pieces T1 'and T2' may be provided in parallel with the data memory 36, and the diode 39 and the capacitor 38 may be provided on the upper housing 84 side.

[Embodiment 2]
FIG. 9 is an electric circuit diagram around the data memory 36 and its backup power source 37 in the multi-function peripheral according to the second embodiment of the present invention. The configuration in FIG. 9 is similar to the configuration shown in FIG. 3 described above, and corresponding portions are denoted by the same reference numerals and description thereof is omitted. It should be noted that in the present embodiment, a backup power source 37 is also mounted on the substrate 80a side along with the data memory 36, and a part of the feeder line between them is formed on the upper housing 84 side. It is that you are.

  For this reason, as shown in FIG. 10C, a pair of contact pieces T3 and T4 are erected on the substrate 80a side, and terminals T5 and T6 which are in contact with the electrodes 37a and 37b of the backup power source 37 are provided. It is erected.

  On the other hand, a short-circuit piece 92 as shown in FIG. 10A is provided on the upper housing 84 side. As shown in an enlarged view in FIG. 10B, the short-circuit piece 92 has recesses H13 and H14 into which the contact pieces T3 and T4 are inserted in a main body 92a made of an electrically insulating material such as resin. In the recesses H13 and H14, contact pieces T13 and T14 that contact the contact pieces T3 and T4 are provided, and a connecting piece 92b that connects the contact pieces T13 and T14 is integrally formed. . The short-circuit piece 92 is made of an electrically insulating material, and is connected to a mounting piece 94 by a spiral wire 93 as shown in FIG. 10A, and the mounting piece 94 is fixed to the upper housing 84 with screws. Is done.

  Therefore, when the upper casing 84 is opened from the lower casing 83 and the spiral wire 93 is extended, the short-circuit piece 92 is fitted to the contact pieces T3 and T4, and when the upper casing 84 is closed, the spiral wire 93 is reduced. Then, the contact pieces T3 and T4 are short-circuited by the short-circuit piece 92 without adversely affecting the circuit on the substrate 80a, and the backup contents of the data memory 36 can be backed up by the backup power source 37.

  Even if the short-circuit piece 92 may come off from the contact pieces T3 and T4, the short-circuit piece 92 is separated from the substrate 80a by the restoring force of the spiral wire 93. In addition, since the contact pieces T13 and T14 are disposed inside the recesses H13 and H14, even if the short-circuit piece 92 may come into contact with the substrate 80a, a problem such as short-circuiting the circuit is avoided. be able to.

  On the other hand, when the upper casing 84 is opened from the lower casing 83 and the short-circuit piece 92 is pulled out from the contact pieces T3 and T4, confidential information such as the destination name and facsimile number can be erased collectively. Even in this case, when the multifunction device 1 is discarded or reused, the confidential information is prevented from leaking undesirably, and security can be improved.

  The present invention is not limited to a facsimile apparatus, and can be suitably implemented in an electric device that handles confidential information such as a mobile phone, a fixed phone, and a PDA (Personal Digital Assistant).

It is a longitudinal cross-sectional view which shows the mechanical structure of the multifunctional machine which is an electric equipment of the 1st Embodiment of this invention. FIG. 2 is a block diagram illustrating an electrical configuration of the multifunction machine. FIG. 2 is an electric circuit diagram around a data memory and its backup power supply in the multifunction machine according to the first embodiment of the present invention. It is a disassembled perspective view which shows the structure of the housing | casing which accommodates the board | substrate with which the said data memory is mounted. It is a perspective view which shows an example of the attachment structure to the upper housing | casing of a backup power supply. It is a perspective view which shows the relationship between the backup power supply and board | substrate of the attachment structure of FIG. It is a perspective view which shows the other example of the attachment structure to the upper housing | casing of backup power supply. It is sectional drawing which shows the relationship between the backup power supply and board | substrate of the attachment structure of FIG. FIG. 6 is an electric circuit diagram around a data memory and its backup power supply in the multifunction machine according to the second embodiment of the present invention. It is a figure for demonstrating the structure around the backup power supply shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Multifunction machine 11 Scanner part 21 Image processing part 31 Printer part 36 Data memory 37 Backup power supply 37a, 37b Electrode 38 Capacitor 39 Diode 41 Control part 42 Scanner controller 43 Facsimile controller 44 Printer controller 45 Copy controller 51 Operation panel part 61 Facsimile communication part 71 Network I / F unit 72 Parallel I / F unit 73 Serial I / F unit 74 HDD
80, 80a, 81, 82 Substrate 83 Lower housing 84 Upper housing 85 Band 86 Hook 87 Engagement piece 88 Connector 90 Control unit 91 Battery holder 92b Connection piece 93 Spiral wire 94 Attachment piece 200 Main body part 300 Paper post-processing part 400 Operation unit 500 Document reading unit 600 Document feeding unit T1, T2; T3, T4; T13, T14 Contact piece T5, T6 terminal

Claims (4)

In electrical equipment having storage means for storing confidential information, the stored contents can be retained by power supply being performed.
A housing for storing the substrate on which the storage means is mounted is composed of an assembly of a plurality of housing portions,
The board is mounted on one of the casing parts, the backup power supply for holding the stored contents is mounted on the other, and both casing parts are separated from each other, so that the backup power supply to the storage means An electric device characterized in that power supply is cut off. In electrical equipment having storage means for storing confidential information, the stored contents can be retained by power supply being performed.
A housing for storing the substrate on which the storage means is mounted is composed of an assembly of a plurality of housing portions,
A backup power supply for holding the substrate and the stored contents is mounted on one of the housing parts, and a part of a power feed line from the backup power supply to the storage means is formed on the other, and both the housing parts are mutually connected. By separating, the power supply from the backup power source to the storage means is cut off. The casing is composed of a casing main body that houses one or more substrates and a lid,
A substrate on which the storage means is mounted is arranged on the uppermost layer of the substrate housed in the housing body, and a pair of power supply contact pieces are extended from the substrate toward the lid,
The lid is provided with a pair of contact pieces for feeding power toward the substrate,
3. The electric apparatus according to claim 1, wherein the contact pieces are separated from each other by opening the lid, and power supply from the backup power source to the storage unit is interrupted.   The electrical apparatus according to claim 1, wherein the confidential information is information necessary when performing facsimile communication, and is a facsimile apparatus.

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