JP2017049401A - Electronic device and image forming apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic device that enables an operator to visually recognize connection of a power supply target member and a power supply connector even when the power supply connector is arranged on the back side of a frame opening, and an image forming apparatus including the electronic device.SOLUTION: An electronic device comprises: at least one power supply target member; and an electrical substrate including a terminal member that is electrically connected with the power supply target member and provided on a first surface, and an opening for visual recognition that is formed to enable an operator to visually recognize at least part of the terminal member from a second surface that is on the back side of the first surface.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an electronic apparatus and an image forming apparatus.

  Patent Document 1 includes a power-supplied unit including at least one power-supplied member, a high-voltage power supply substrate that is electrically connected to the power-supplied member and supplies power, and the high-voltage power supply substrate support member. In the image forming apparatus that performs image formation by the above-described structure, the image forming apparatus includes a structure including a first side plate and a second side plate that are disposed substantially parallel to a pair of opposed surfaces of the apparatus main body. A high-voltage power supply substrate support member is detachably mounted from the opening between the first side plate and the second side plate, and serves as a terminal member that electrically connects the power-supplied unit and the high-voltage power supply substrate. A configuration is disclosed in which a pair of contact terminals is provided, and one of the contact terminals is an elastic member formed in a mountain shape by two inclined surfaces with respect to the attaching / detaching direction of the high-voltage power supply substrate.

JP 2011-059348 A

  At the time of assembly and maintenance, the operator performs connector attachment / detachment work from the top or front of the device, but due to the board area and routing of the high-voltage power supply path, only a part of the power supply connector is located on the frame opening side. Cannot be placed. In addition, the component mounting surface on which the power feeding connector is mounted may be disposed on the back side of the frame opening.

  An object of the present invention is to provide an electronic apparatus and an image forming apparatus that can visually recognize the connection between a power-supplied member and a power supply connector even when the power supply connector is disposed on the back side of the frame opening.

  To achieve the above object, the present invention according to claim 1 is directed to at least one power-supplied member, a terminal member electrically connected to the power-supplied member and provided on a first surface, and the first It is an electronic device provided with the visual inspection opening part formed so that at least one part of the said terminal member might be visually recognized from the 2nd surface side of the back side of this surface, and the electrical equipment board | substrate which has.

  According to a second aspect of the present invention, in the first surface of the electrical board, a plurality of electronic components are provided, and a creeping insulation distance securing groove is formed between the electronic components. It is an electronic device of description.

  The present invention according to claim 3 is the electronic device according to claim 2, wherein the visual recognition opening and the creeping insulation distance securing groove are formed continuously.

  According to a fourth aspect of the present invention, in the electronic device according to any one of the first to third aspects, the electrical board has a recess formed so as to be recessed from a side surface of the electrical board to the terminal member mounting position.

  According to a fifth aspect of the present invention, there is provided at least one power-supplied member, a terminal member electrically connected to the power-supplied member and provided on the first surface, and a second member on the back side of the first surface. It is an image forming apparatus provided with the electronic device which has the opening part for visual recognition formed so that at least one part of the said terminal member may be visually recognized from the surface side, and the electrical equipment board | substrate which has.

  According to the first aspect of the present invention, it is possible to provide an electronic device that can visually recognize the connection between the power-supplied member and the power supply connector even if the power supply connector is disposed on the back side of the frame opening. .

  According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, it is possible to ensure the creeping insulation distance between the electronic components.

  According to the third aspect of the present invention, in addition to the effect of the second aspect of the present invention, compared to the case where the visual recognition opening and the creeping insulation distance securing groove are not continuously formed, the processing is performed. It becomes easy.

  According to the fourth aspect of the present invention, in addition to the effect achieved by the first aspect of the present invention, the operator can connect the power-supplied member, the power supply connector, Can be easily attached and detached.

  According to the fifth aspect of the present invention, it is possible to provide an image forming apparatus that can visually recognize the connection between the power-supplied member and the power supply connector even if the power supply connector is disposed on the back side of the frame opening. it can.

1 is a cross-sectional view illustrating an image forming apparatus according to an embodiment of the present invention. It is the perspective view which looked at the electrical equipment board | substrate which the image forming apparatus shown in FIG. 1 has from the electronic component mounting side. It is the top view which looked at the electrical equipment board | substrate shown in FIG. 2 from the electronic component mounting | wearing side. It is the top view which looked at the electrical equipment board | substrate shown in FIG.2 and FIG.3 from the back surface side.

Next, embodiments for carrying out the present invention will be described with reference to the drawings.
FIG. 1 shows an image forming apparatus 10 according to a first embodiment of the present invention. As shown in FIG. 1, the image forming apparatus 10 includes an image forming apparatus main body 12.

  A front-side opening / closing part 14 is attached to the image forming apparatus main body 12 so as to be opened / closed forward with respect to the image forming apparatus main body 12 using a hinge 16.

  Further, the upper opening / closing part 18 is attached to the image forming apparatus main body 12 so as to be opened / closed upward with respect to the image forming apparatus main body 12 using a hinge 20.

  The upper opening / closing part 18 is normally closed with respect to the image forming apparatus main body 12. When the photoconductor units 22Y, 22M, 22C, and 22K, which will be described later, are attached to and detached from the image forming apparatus main body 12, the upper opening / closing portion 18 is opened. Prior to opening the upper opening / closing part 18, the front opening / closing part 14 is opened with respect to the image forming apparatus main body 12 using the hinge 16.

  When closing the front opening / closing part 14 with respect to the image forming apparatus main body 12, the upper opening / closing part 18 is closed with respect to the image forming apparatus main body 12 prior to closing the front opening / closing part 14. The upper opening / closing part 18 is used as a discharge part for discharging a sheet on which an image is formed on the upper surface.

  An image forming unit 24 for forming an image on a sheet is provided in the image forming apparatus main body 12. The image forming unit 24 includes, for example, four photoconductor units 22Y, 22M, 22C, and 22K.

  Each of the photosensitive units 22Y, 22M, 22C, and 22K is used as an image forming structure, and each has a photosensitive drum 26Y, 26M, 26C, and 26K. Each of the photosensitive units 22Y, 22M, 22C, and 22K is attached to and detached from the image forming apparatus main body 12. can do. The photoconductor units 22Y, 22M, 22C, and 22K are arranged in the order of the photoconductor units 22Y, 22M, 22C, and 22K from the rear side (right side in FIG. 1) of the image forming apparatus main body 12.

  Each of the photosensitive drums 26Y, 26M, 26C, and 26K is used as an image holding body that holds an image.

  The image forming unit 24 has an optical writing device 28 used as a latent image forming device. The optical writing device 28 irradiates each of the photosensitive drums 26Y, 26M, 26C, and 26K to form a latent image on the surface of each of the photosensitive drums 26Y, 26M, 26C, and 26K. .

  The image forming unit 24 includes developing devices 30Y, 30M, 30C, and 30K. The developing device 30Y develops the latent image formed on the photosensitive drum 26Y using yellow toner stored therein. The developing device 30M develops the latent image formed on the photosensitive drum 26M using magenta toner stored therein. The developing device 30C develops the latent image formed on the photosensitive drum 26C using cyan toner stored therein. The developing device 30K develops the latent image formed on the photosensitive drum 26K using black toner stored therein.

  The image forming unit 24 includes a transfer device 32. The transfer device 32 includes an intermediate transfer belt unit 34 and a secondary transfer device 36, which are intermediate transfer devices. The intermediate transfer belt unit 34 is an intermediate transfer member. An intermediate transfer belt 38 is included.

  The intermediate transfer belt 38 is used as a transfer body to which an image (toner image) is transferred from the photosensitive drums 26Y, 26M, 26C, and 26K. Further, the intermediate transfer belt 38 has a belt shape, and is wound around the support rolls 40, 42, 44, 46, and 48, which are rotating members, so that the intermediate transfer belt 38 can rotate in the direction indicated by the arrow in FIG. . The drive from the motor is transmitted to the support roll 46 via a gear (not shown), and the support roll 46 transmits the drive to the intermediate transfer belt 38 by rotating in response to the drive from the motor.

  In addition, the intermediate transfer belt unit 34 includes primary transfer rolls 50Y, 50M, 50C, and 50K used as a primary transfer device. The primary transfer rolls 50Y, 50M, 50C, and 50K are provided with a yellow toner image, a magenta toner image, a cyan toner image, and a black toner image respectively formed on the surfaces of the photosensitive drums 26Y, 26M, 26C, and 26K. Then, the image is transferred to the intermediate transfer belt 38.

  The secondary transfer device 36 has a secondary transfer roll 52. The secondary transfer roll 52 further transfers the yellow toner image, the magenta toner image, the cyan toner image, and the black toner image transferred to the intermediate transfer belt 38 to the sheet.

  Further, the transfer device 32 has a cleaning device 54, and the cleaning device 54 has a scraping member 56. The scraping member 56 scrapes off the toner of each color remaining on the surface of the intermediate transfer belt 38 after the toner image of each color is transferred onto the sheet by the secondary transfer roll 52. In the main body of the cleaning device 54, the toner scraped off by the scraping member 56 is collected. The cleaning device 54 can be attached to and detached from the image forming apparatus main body 12 through an opening formed by opening the upper opening / closing portion 18.

  Among the members constituting the transfer device 32, the intermediate transfer belt unit 34 and the cleaning device 54 are provided in the upper opening / closing part 18. Of the transfer device 32, the secondary transfer roll 52 is provided in the image forming apparatus main body 12.

  A fixing device 58 for fixing the toner image transferred to the sheet by the secondary transfer roll 52 on the front side of the image forming apparatus main body 12 and inside the front opening / closing unit 14 is provided. It is housed as a single unit inside the front opening / closing part 14. Further, a reverse conveyance path 60 described later is provided inside the front opening / closing part 14, and the reverse conveyance path 60 is opened by opening the front opening / closing part 14 with the hinge 16 as a rotation axis, thereby jamming the sheet. Can be removed.

  A collection container 62 is provided in the image forming apparatus main body 12. In the collection container 62, excess developer discharged from the developing devices 30Y, 30M, 30C, and 30K is collected. The collection container 62 is integrated with, for example, the photoreceptor unit 22K.

  In addition, a sheet supply device 64 that supplies sheets to the image forming unit 24 is mounted in the image forming apparatus main body 12. The sheet supply device 64 can be pulled out to the front side (left side in FIG. 1) of the image forming apparatus main body 12, and the sheet is replenished in a state where the sheet supply device 64 is pulled out from the image forming apparatus main body 12. .

  The sheet supply device 64 includes a sheet storage container 66 that stores sheets such as plain paper in a stacked state. Further, the sheet supply device 64 includes a transport roll 68 that extracts the uppermost sheet stored in the sheet storage container 66 and transports the extracted sheet toward the image forming unit 24. Further, the sheet supply device 64 has a retard roll 70 that is used to roll a sheet and prevent a plurality of sheets from being conveyed to the image forming unit 24 in an overlapped state.

  In addition, a conveyance path 72 used for conveying a sheet is formed in the image forming apparatus main body 12. The conveyance path 72 includes a main conveyance path 74 and a reverse conveyance path 60.

  The main conveyance path 74 is used for conveying the sheet supplied from the sheet supply device 64 to the image forming unit 24 and discharging the sheet on which the image is formed to the outside of the image forming apparatus main body 12. Along the main conveyance path 74, the conveyance roll 68 and the retard roll 70, the registration roll 78, the secondary transfer roll 52, and the fixing device 58 are sequentially described from the upstream side in the sheet conveyance direction. And the discharge roll 80 is arrange | positioned.

  The registration roll 78 temporarily stops the leading edge of the sheet conveyed from the sheet supply device 64 side, and performs secondary transfer of the sheet so as to coincide with the timing at which each color toner image is transferred to the intermediate transfer belt 38. It sends out toward the roll 52.

  The discharge roll 80 discharges the sheet on which the toner of each color is fixed by the fixing device 58 to the outside of the image forming apparatus main body 12.

  The reverse conveyance path 60 is a conveyance path used for reversing and feeding the sheet having the toner image fixed on one surface thereof to the image forming unit 24. For example, two reverse conveyance rolls 82 and 82 are arranged along the reverse conveyance path 60. In the reverse conveyance path 60, the sheet is supplied from the rear end side by the reverse rotation of the discharge roll 80 with the rear end portion of the sheet being sandwiched, and the supplied sheet is supplied by the reverse conveyance rolls 82 and 82. It is conveyed to a position upstream of the resist roll 78.

  In the image forming apparatus main body 12, the photosensitive drums 26Y, 26M, 26C, and 26K, the developing devices 30Y, 30M, 30C, and 30K, and the primary transfer rolls 50Y, 50M, 50C, and 50K are supplied to power-supplied members inside the apparatus. An electrical board 100 for applying a high voltage is provided. A high voltage is supplied to each power-supplied member by connecting each power-supplied member and a terminal member 102 as a power-feeding connector of the electrical board 100.

  The front side opening / closing part 14 can open the conveying path 72 by opening the hinge 16 as a rotation axis, and can remove the jam of the sheet. When the front opening / closing part 14 is opened, the fixing device 58 is accommodated so as to be taken out forward with respect to the image forming apparatus main body 12.

  Further, the upper opening / closing portion 18 opens the hinge 20 as a rotation shaft, and stores the intermediate transfer belt unit 34, the cleaning device 54, and the optical writing device 28 so as to be taken out from the image forming apparatus main body 12. Has been. In addition, the upper opening / closing part 18 is opened with the hinge 20 as a rotation axis, so that each power-supplied member is attached to the terminal member 102 of the electrical board 100.

  2 to 4 show an electrical board 100 according to the present embodiment. FIG. 2 is a perspective view of the electrical board 100 as viewed from the electronic component mounting side. FIG. 3 is a top view of the electrical board 100 as viewed from the electronic component mounting side. FIG. 4 is a top view of the electrical board 100 of FIGS. 2 and 3 as viewed from the opposite side.

  Electronic components 104 such as a transistor, a transformer for converting an AC voltage into a DC voltage, and a choke coil are mounted on the first surface 100 a that is the back surface side of the electrical substrate 100. The second surface 100b which is the front surface side of the electrical board 100 is a solder surface. In the present embodiment, the electrical substrate 100 is disposed in the image forming apparatus main body 12 so that the electronic component 104 faces the bottom surface of the image forming apparatus main body 12.

Between the electronic components 104 of the electrical board 100, slits 106 are formed as grooves for securing a creeping insulation distance for securing a creeping insulation distance. The width T _{1 of the} slit 106 is, for example, about 1 mm.

A visual recognition opening 108 is formed at a position where the terminal member 102 of the electrical board 100 is disposed. That is, the terminal member 102 is visually recognized from the second surface 100 b side through the visual recognition opening 108. The width T ₂ of the visual recognition opening 108 is, for example, 1.5 mm or more.

  The visual recognition opening 108 and the slit 106 are formed continuously with respect to the electrical substrate 100. Compared to a configuration in which the visual recognition opening 108 and the slit 106 are not formed continuously, drilling is easier in the processing stage of the electrical board 100.

  The electrical board 100 has a recess 110 formed so as to be recessed from the side surface of the electrical board 100 to the terminal member 102 mounting position. The depression 110 is formed obliquely to a position close to the visual recognition opening 108.

  Next, the operation of connecting the power-supplied member to the electrical board 100 according to the present embodiment will be described. In the present embodiment, the upper opening / closing part 18 is opened upward with respect to the image forming apparatus main body 12 using the hinge 20, and the operator performs work from the second surface 100 b side of the electrical board 100.

  As shown in FIG. 4, the operator can visually recognize the terminal member 102 on the side of the electrical board 100 from the viewing opening 108 formed in the electrical board 100.

  The operator attaches the connector of the power-supplied member to the terminal member 102 while visually recognizing the connector through the visual recognition opening 108. At this time, the recessed portion 110 is arranged on the mounting side of the terminal member 102, the mounting work is facilitated, the operability is good, and the substrate is prevented from being damaged. In addition, the connection state between the connector of the power-supplied member and the terminal member is confirmed through the visual recognition window 108, and connection failure between the connectors is prevented.

  The electrical substrate 100 is not particularly limited for high voltage application.

  Further, in the present embodiment, an example in which the electronic component 104 of the electrical board 100 is arranged not on the frame opening side but on the bottom side of the image forming apparatus main body has been described. You may arrange | position at the side surface inner side of an apparatus main body, and you may make it arrange | position on the side surface outer side or the top | upper surface side.

  In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the meaning of this invention. For example, the shape or the like of the visual recognition opening portion 108 of the electrical substrate 100 is not particularly limited to this embodiment, and can be changed as appropriate. Further, the number and arrangement of the electronic components 104, the terminal members 102, and the recessed portions 110 on the electrical board 100 are not limited to this, and can be appropriately designed according to the configuration of the electrical board 100.

  As described above, the present invention can be applied to an image forming apparatus such as a copying machine, a printer, and a facsimile machine.

  The present invention has been described in detail with respect to the electrical board 100 applied to the image forming apparatus 10, but is not limited thereto, and is applicable to an electronic apparatus including an electrical board such as a personal computer or a television.

DESCRIPTION OF SYMBOLS 10 ... Image forming apparatus 12 ... Image forming apparatus main body 18 ... Upper side opening / closing member 100 ... Electric circuit board 102 ... Terminal member (power supply connector)
104 ・ ・ Electronic parts 106 ・ ・ Slit (groove for securing creepage insulation distance)
108 .. Opening for viewing 110...

Claims (5)

At least one powered member;
A terminal member that is electrically connected to the power-supplied member and provided on the first surface, and is formed so that at least a portion of the terminal member is visible from the second surface side behind the first surface. An opening for visual recognition, and an electrical board having
With electronic equipment.   The electronic device according to claim 1, wherein a plurality of electronic components are provided on the first surface of the electrical board, and a creeping insulation distance securing groove is formed between the electronic components.   The electronic device according to claim 2, wherein the visual recognition opening and the creeping insulation distance securing groove are formed continuously.   The electronic device according to any one of claims 1 to 3, wherein the electrical board has a hollow portion formed so as to be recessed from a side surface of the electrical board to the terminal member mounting position. At least one powered member;
A terminal member that is electrically connected to the power-supplied member and provided on the first surface, and is formed so that at least a portion of the terminal member is visible from the second surface side behind the first surface. An opening for visual recognition, and an electrical board having
An image forming apparatus including an electronic apparatus having the above.

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