Image forming device

Abstract

To prevent disconnection of a connector while turning an electrical unit in a configuration that allows the electrical unit to be turned without disconnecting a connection wire of an image reader connected to the electrical unit.SOLUTION: An opening for exposing a connector mounted on a control board is provided on an upper surface of an electrical unit, and a connection wire of an image reader is arranged to pass near a rotation axis of the electrical unit and the upper surface of the electrical unit, such that a connector of the connection wire is connected to the connector on the control board via the opening.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to an electrophotographic image forming apparatus such as a copying machine, a printer, a facsimile machine, or a multifunction machine having a plurality of these functions. [Background technology]

[0002] In conventional image forming devices, it is common to place all the units operated by the user on the front side of the main body, and all electrical units such as electrical circuit boards on the back side of the main body, which are not accessible to the user.

[0003] Some electrical units of image forming devices are separated into a system control board that controls the system of the image forming device and communicates with external devices, and a drive control board that controls the drive mechanisms that drive each unit for image formation. In such configurations, the drive control board is often located close to the drive mechanisms and is often stacked further inside the device than the system control board.

[0004] In this case, in order to facilitate maintenance of the drive mechanism and drive control board, it is possible to consider a configuration in which the electrical unit having the system control board can be rotated so as to expose the drive mechanism without removing it from the main body while the electrical wiring remains connected to the system control board.

[0005] In Patent Document 1, in an image forming apparatus having a rotatable electrical unit, connectors for electrical wiring that connect the connection wire of the image reading device to the system control board in the electrical box are arranged on the side of the electrical unit on the hinge side. Furthermore, Patent Document 1 proposes a configuration in which connectors for communicating with external devices are arranged on the side opposite the hinge.

[0006] As a result, in Patent Document 1, it is possible to expose the drive mechanism without removing the image reading device from the main body while the connection wire of the image reading device remains connected to the system control board. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-116615 Summary of the Invention [Problem to be solved by the invention]

[0008] However, when a connector to be connected to the connection wire of the image reading device is disposed on the rotation axis side of the electrical unit as in Patent Document 1, the connector approaches the device main body when the electrical unit is rotated, which can cause the connector to come into contact with a component of the device main body and cause a load to be applied to the connector, which can lead to the connector coming loose.

[0009] SUMMARY OF THE INVENTION It is therefore an object of the present invention to prevent connectors from coming loose when an electrical unit is rotated in a configuration in which the electrical unit can be rotated without disconnecting the connection wires of an image reading device. [Means for solving the problem]

[0010] The image forming apparatus according to the present invention is an image forming apparatus that forms an image on a sheet, and includes an image forming unit that forms an image on a sheet, an apparatus main body that houses the image forming unit, an image reading device that has a reading unit that reads an original image and is provided above the apparatus main body in the vertical direction, a first control board that is provided in the apparatus main body and controls the drive of the image forming unit, a second control board that is connected to the image reading device via a connection line, a second connector that is mounted above the second control board in the vertical direction and to which a first connector provided on the connection line is connected, and a board housing unit that houses the second control board, and a board accommodating unit that is rotatable about a rotation axis provided at one end in the width direction of the image forming device from a first position that covers the first control board relative to the device main body to a second position that exposes the first control board, wherein the board accommodating unit has an upper surface that forms part of a wall for accommodating the second control board and has an upper surface provided with an opening that exposes the second connector, and the connection line has a first wiring section that passes along the rotation axis side in the width direction of the image forming device and is wired from the image reading device to the device main body, and a second wiring section that is wired from the rotation axis to the opening in the width direction. [Effects of the Invention]

[0011] According to the present invention, in a configuration in which the electrical unit can be rotated without disconnecting the connection wires of the image reading device, it is possible to prevent the connector from coming loose when the electrical unit is rotated. [Brief explanation of the drawings]

[0012] [Figure 1] Schematic cross-sectional view showing the configuration of an image forming apparatus [Figure 2] A perspective view of the image forming apparatus as seen from the rear [Figure 3] FIG. 10 is a perspective view showing a state in which the controller box is rotated. [Figure 4] A perspective view showing the controller box with its exterior removed. [Figure 5] Enlarged view of the area around the rotation axis [Figure 6] A diagram showing the layout of the controller board inside the controller box and the cables connected to it. [Figure 7] Diagram showing how each cable is connected to the connector inside the controller box [Figure 8] Rear perspective view of the controller box [Figure 9] Controller board connector details DETAILED DESCRIPTION OF THE INVENTION

[0013] First Embodiment 1 is a cross-sectional view showing a schematic configuration of an image forming apparatus 220. The image forming apparatus 220 includes an image reading device 10, a printer unit 20, a controller unit 300, a power supply device 40 that generates DC power from AC power, and an operation unit 140 that can be operated by a user. The operation unit 140 is an interface through which a user inputs instructions.

[0014] The image reading device 10 is provided above the printer unit 20 in the vertical direction, and includes a platen glass 101 on which an original is placed, and an original transport device 146 that sequentially feeds the original to a predetermined position on the platen glass 101.

[0015] The image reading device 10 reads the original image on the platen glass 101 using the scanning unit 147, the scanning unit 148, and the CCD unit 106, which are installed below the platen glass 101. In this embodiment, the scanning unit 147, the scanning unit 148, and the CCD unit 106 are examples of reading units that read the original image.

[0016] The scanning unit 147 has a lamp 102 that irradiates light onto the document, and a scanning mirror 103 that further reflects the light reflected from the document.

[0017] Scanning unit 148 also has scanning mirrors 104 and 105 that reflect the light reflected by scanning mirror 103 toward CCD unit 106. Scanning unit 148 scans in the sub-scanning direction at half the speed of scanning unit 147. CCD unit 106 has imaging lens 107 that receives the light reflected by scanning mirror 105 and forms an image, image sensor 108 formed of a CCD that converts the formed image into, for example, an 8-bit digital image signal, and a CCD driver 109 that drives image sensor 108.

[0018] The main controller unit 300 is capable of receiving instructions from the user via the operation unit 140 and generating image data based on the image signal output from the image sensor 108, and controls the entire image forming apparatus 220.

[0019] The reader controller 11 controls the image reading device 10 based on instructions from the main controller unit 300 .

[0020] The main controller unit 300 mainly includes a controller board 30 (described later) and a storage device such as an SSD (Solid State Drive) (not shown). The main controller unit 300 also includes an external interface such as a LAN (Local Area Network) or a USB (Universal Serial Bus) for communicating with a client PC terminal (not shown).

[0021] In addition, the main controller unit 30 can be additionally equipped with an expansion unit for connecting to external devices such as an expansion unit for fax communication and a DFE (Digital Front End) that issues print instructions to the image forming device 220.

[0022] The printer unit 20 is an image forming unit that forms an image on a sheet based on image data generated by the main controller unit 300. The printer unit 20 includes a photosensitive drum 110, an exposure unit 117 that exposes the photosensitive drum 110 to light to form an electrostatic latent image, and a developing unit 118 that contains toner, which is a black developer, and develops the electrostatic latent image on the photosensitive drum 110 with the toner. The printer unit 20 also includes a pre-transfer charger 119 that applies a high voltage to the developed toner image on the photosensitive drum 110 before transfer. The exposure unit 117 is configured, for example, with a semiconductor laser or the like.

[0023] The printer controller 21 controls each unit of the printer section 20 based on instructions from the main controller unit 30 .

[0024] The printer unit 20 also includes a manual paper feed unit 120 and paper feed units 122, 124, 142, and 144 that store sheets. The sheets stored in the manual paper feed unit 120 or the paper feed units 122, 124, 142, and 144 are transported into the image forming apparatus 220 by feed rollers 121, 123, 125, 143, and 145. The printer unit 20 also includes a registration roller 126 that feeds the sheets fed from the feed rollers 121, 123, 125, 143, and 145 to the photosensitive drum 110.

[0025] The registration roller 126 and the feeding rollers 121, 123, 125, 143, and 145 temporarily stop the sheets on the manual paper feed unit 120 and the sheets stored in the paper feed units 122, 124, 142, and 144 at a predetermined position, and then feed the sheets so as to match the writing timing with the developed toner image on the photosensitive drum 110.

[0026] Furthermore, the printer unit 20 has a transfer charger 127 that transfers the toner image developed on the photosensitive drum 110 to a fed sheet, and a separation charger 128 that separates the sheet onto which the toner image has been transferred from the photosensitive drum 110 from the photosensitive drum 110. The sheet onto which the toner image formed on the photosensitive drum 110 has been transferred is transported to a fixing unit 130 by a transport belt 129. Meanwhile, toner remaining on the photosensitive drum 110 without being transferred to the sheet is collected by a cleaner 111. Note that the photosensitive drum 110 is neutralized by a pre-exposure lamp 112 and then uniformly charged by a primary charger 113. In this embodiment, the photosensitive drum 110, the exposure unit 117, the developing unit 118, the pre-transfer charger 119, and the transfer charger 127 are examples of image forming units that form an image on a sheet.

[0027] The toner image transferred to the sheet is fixed to the sheet by applying heat and pressure by a fixing device 130. Thereafter, the sheet on which the toner image has been fixed is conveyed to a sorter 132 via a flapper 131.

[0028] When an image is formed on both sides of a sheet, the sheet with a toner image fixed on one side is fed to an intermediate tray 137 via a flapper 131 and feeding rollers 133 to 136. Thereafter, the sheet in the intermediate tray 137 is fed again to the photosensitive drum 110 by a paper re-feed roller 138, and a toner image is formed on the opposite side in the same manner as described above.

[0029] The flapper 131 is configured to switch the destination of the sheet on which the toner image has been fixed between the sorter 132 and the intermediate tray 137, and the rollers 133 to 136 are configured to either not reverse (multiple) or reverse (double-sided) the sheet on which the toner image has been fixed.

[0030] In this embodiment, the image forming apparatus 220 that forms monochrome images has been described as an example, but it may be configured to form images in multiple colors such as yellow, magenta, cyan, and black. Also, while the configuration in which the intermediate tray 137 is provided on the reverse conveying path has been described as an example, it may be configured to provide multiple conveying rollers without a tray and convey the sheet again to the registration rollers 126.

[0031] Next, a description will be given of the controller box 202 of the image forming apparatus 220. Fig. 2 is a perspective view of the image forming apparatus 220 as viewed from the rear side.

[0032] As shown in Fig. 2, the controller box 202 houses the controller board 30 covered with a metal plate to shield it from radiated noise and to protect it from the effects of electrostatic noise. The controller box 202 is further covered with an exterior cover 203. The state in which the image forming apparatus 220 is normally operated is shown in Fig. 2. In this embodiment, the controller box 202 is an example of a board housing unit that houses the controller board 30.

[0033] Fig. 3 is a perspective view showing a state in which the controller box 202 has rotated. As shown in Fig. 3, the controller box 202 is rotatable about rotation axes 305 and 306 provided at one end in the width direction of the image forming apparatus 220. The state shown in Fig. 3 is a state in which a service person can access the printer unit 20 when performing maintenance on the printer unit 20 arranged inside the image forming apparatus 220. Note that the exterior cover 203 fixed to the cover sheet metal 202c (Fig. 7) of the controller box 202 can rotate without being removed from the controller box 202.

[0034] Furthermore, by rotating the controller box 202, the drive control board 50, which is stacked on the controller box 202, can be exposed. Therefore, by rotating the controller box 202, a service person can perform maintenance on the drive control board 50 without removing the controller box 202 from the main body of the apparatus. In this embodiment, the drive control board 50 is an example of a first control board that controls the drive of the image forming units. Furthermore, the position of the controller box 202 shown in FIG. 2 is an example of a first position that covers the drive control board 50, and the position of the controller box 202 shown in FIG. 3 is an example of a second position that exposes the drive control board 50.

[0035] In the state shown in FIG. 3, the image forming device 220 is not operated normally, but it is possible to operate the image forming device 220 exceptionally when a service technician checks the operation of the printer unit 20 when performing maintenance on the printer unit 20.

[0036] Fig. 4 is a perspective view showing a state in which the exterior cover 203 of the controller box 202 is removed. The state shown in Fig. 4 allows a service person to access the inside of the controller box 202 when performing maintenance on the inside of the controller box 202.

[0037] As shown in FIG. 4, the controller box 202 incorporates therein the controller board 30, an external interface unit 402, a cable (not shown) that connects the controller board 30 and the printer section 20, and the like.

[0038] 5A and 5B are enlarged views of the vicinity of the rotation shafts 305 and 306, with FIGS. 5A and 5B being perspective views of the vicinity of the support members, and FIGS. 5C and 5D being perspective views of the vicinity of the rotation shafts.

[0039] 5(a) and 5(b), the controller box 202 has an upper support portion 301 and a lower support portion 302 on a side surface 222 of the controller box 202 in the width direction (arrow X direction) of the image forming apparatus 220. In the up-down direction (ZU-ZD) which is the direction of the rotation axis, the upper support portion 301 is provided on the upper side, and the lower support portion 302 is provided on the lower side.

[0040] As shown in FIGS. 5(a) and 5(c), a through hole 303 is formed in the upper support portion 301, and a shaft 305 provided on the frame 230 of the image forming apparatus 220 is inserted vertically from above.

[0041] As shown in Figures 5(b) and (d), a through hole 304 is formed in the lower support portion 302, and an axis 306 provided on the frame 230 of the image forming device 220 is inserted vertically from below.

[0042] In this way, the shaft 305 is inserted into the through-hole 303 of the upper support portion 301, and the shaft 306 is inserted into the through-hole 304 of the lower support portion 302, thereby making the controller box 202 rotatable with respect to the frame 230 of the image forming apparatus 220. This enables a service technician to perform maintenance on the inside of the image forming apparatus 220 in the field without removing the controller box 202. The frame 230 in this embodiment is an example of an apparatus main body that houses image forming units such as the photosensitive drum 110, exposure unit 117, developing unit 118, pre-transfer charger 119, and transfer charger 127 described above.

[0043] In this embodiment, as shown in FIGS. 5( a) and 5(c), the side surface 308 of the upper support portion 301 abuts against a protrusion 307 provided on the frame 230, thereby restricting the rotation range of the controller box 202. As shown in FIGS. 5(b) and 5(d), the side surface 310 of the lower support portion 302 abuts against a protrusion 309 provided on the frame 230, thereby restricting the rotation range of the controller box 202. In this manner, the abutment between the side surface 308 and the protrusion 307, and the abutment between the side surface 310 and the protrusion 309, defines the maximum opening angle of the controller box 202. In this embodiment, the maximum opening angle is set to 120 degrees in consideration of ensuring space that is easy for a service person to perform maintenance and an area where the controller box 202 does not come into contact with peripheral units (not shown).

[0044] In this embodiment, the maximum opening angle is set to approximately 120°, but the maximum opening angle does not have to be approximately 120° as long as a space for easy maintenance can be secured and there is no contact with other units.

[0045] FIG. 6 is a detailed view showing the arrangement of the controller board 30 in the controller box 202 and the cables connected thereto, and is an enlarged view of the portion indicated by the dashed line A in FIG.

[0046] The controller board 30 is mounted with connectors 400a to 400c, connectors 410a to 410c, a connector 420, connectors 430a to 430d, and connectors 440a to 440b.

[0047] The connectors 400a to 400c are connectors that a user accesses to insert a network line such as a LAN (Local Area Network) or a storage medium such as a USB (Universal Serial Bus). In this embodiment, the connectors 400a to 400c are mounted on the end opposite the rotation axis in the width direction, and are an example of a third connector into which a storage medium can be inserted.

[0048] The connectors 410a-c are connectors into which cable connectors 140a-c of connection lines connected to the operation unit 140 are inserted. By being connected to the operation unit 140, the controller board 30 can transmit image signals to be displayed on the operation unit 140. The controller board 30 can also receive input signals to the touch panel or numeric keypad input to the operation unit 140, and can perform signal connection for a USB (Universal Serial Bus) arranged on the operation unit 140. In this embodiment, the connectors 410a-c are an example of operation unit connectors mounted on the end on the opposite side of the rotation axis in the width direction.

[0049] The connector 420 is a connector into which a cable connector 11a of a connection line connected to the reader controller 11 is inserted. The controller board 30 can transmit an original image read by the image reading device 10 via the connector 420, and can exchange signals for operation control from the controller unit 300 to the image reading device 10. Thus, in this embodiment, the controller board 30 is an example of a second control board connected to the image reading device 10 via the connection line 11b (FIG. 8). Also, the cable connector 11a is an example of a first connector provided on the connection line.

[0050] The controller board 30 has a recessed portion 30a formed by cutting out the board at a position where the connector 420 is mounted. The connector 420 is provided on the edge of the controller board 30 where the recessed portion 30a is provided.

[0051] The recessed portion 30a is formed to avoid the cable connector 11a. This reduces the amount by which the cable connector 11a protrudes from the controller box 202 in a configuration in which the connector 420 is provided near the vertically upper edge of the controller board 30. Furthermore, the provision of the recessed portion 30a allows a general-purpose cable connector with a long length in the insertion direction to be inserted into the connector 420. In this way, by enabling the use of a general-purpose cable connector, the manufacturing cost of the cable can be reduced. However, when a cable connector with a short length in the insertion direction is used, the recessed portion 30a does not necessarily have to be provided. In this embodiment, the connector 420 is an example of a second connector mounted on the upper part of the controller board 30 in the vertical direction.

[0052] Connectors 430a-d are connectors into which cable connectors of connection lines connected to printer controller 21 are inserted. Controller board 30 transmits document image data to printer controller 21 to be printed by printer unit 20, and exchanges signals for operation control with printer unit 20, via connectors 430a-d.

[0053] The connectors 440a-b are power and signal connectors that are connected to supply power from the power supply device 40 to the controller board 30 and to control a power supply board (third control board) provided in the power supply device 40 from the controller board 30. In this embodiment, the connectors 440a-b are an example of power connectors that are mounted at the end near the rotation axis in the width direction.

[0054] Next, the arrangement of connectors when the controller box 202 is viewed from the outside will be described with reference to FIGS.

[0055] FIG. 7 is a diagram showing a state in which cables are connected to connectors 410 and 420 inside controller box 202 with cover sheet metal 202c of controller box 202 closed.

[0056] FIG. 8 is a view of the controller box 202 as seen from the back side with the controller box 202 rotated.

[0057] The image forming apparatus 220 in this embodiment may be used without the image reading apparatus 10, and therefore, in the market, an image reading apparatus 10 may be additionally attached to the image forming apparatus 220 later. Therefore, the connector 420 into which the cable connector 11a of the connection line connected to the reader controller 11 provided in the image reading apparatus 10 is inserted is accessed more frequently by service personnel in the market than other connectors.

[0058] Therefore, in this embodiment, the connector 420 is disposed on the upper surface 202a side of the controller box 202. This allows a cable to be inserted into or removed from the connector 420 without removing the metal cover 202c (FIG. 7) of the controller box 202. As will be described in detail later, the cable connector 11a wired from the image reading device 10 is connected to the connector 420 inside the controller box 202 through an opening 202b formed in the upper surface 202a of the controller box 202. This makes it possible for a service technician to easily perform maintenance work.

[0059] On the other hand, the frequency with which service personnel access connectors 430a-d and connectors 440a-b in the market is low. Therefore, connectors 430a-d and connectors 440a-b are arranged on the right end side of controller board 30 so that they can be accessed after removing cover sheet metal 202c of controller box 202.

[0060] Furthermore, the connectors 400a-c are arranged on the side surface 223 of the controller box 202 in the width direction (arrow X direction) of the image forming apparatus 220 so that they can be accessed even when the entire exterior of the image forming apparatus 220 is attached and in the state shown in Figure 2. Therefore, openings 223a-c (Figure 8) are provided on the side surface 223 of the controller box 202 to expose the connectors 400a-c. This allows the user to insert storage media, LAN cables, etc. into the connectors 400a-c.

[0061] Although not shown in the present embodiment, the connectors 140a-c are connected to the connectors 410a-c via other openings provided in the side surface portion 223. The top surface portion 202a and the side surface portion 223 in the present embodiment are examples of the top surface portion and the side surface portion that constitute part of the wall portion that forms the space for accommodating the controller board 30.

[0062] 4, the controller board 30 in this embodiment has a smaller area than the controller box 202, and is disposed closer to the left side when viewed from the rear side inside the controller box 202. In other words, the controller board 30 is provided in a position in the storage space of the controller box 202 closer to the side surface portion 223 than the rotation axes 305 and 306.

[0063] Such an arrangement allows the user to easily access the connectors 400a-c even when the controller board 30 is miniaturized. Furthermore, because the connectors 400a-c accessed by the user are also connected to LAN cables and the like, it is desirable that the controller box 202 be able to rotate while the connection lines and the like connected to these connectors 400a-c are still connected. Therefore, in this embodiment, the connectors 400a-c are provided on the opposite side of the rotation shafts 305, 306 in the width direction.

[0064] 7 and 8, the connection wire 11b connected to the reader controller 11 passes near the upper support part 301 provided on the rotation axis side of the controller box 202 and is connected to the reader controller 11 provided inside the image reading device 10. In other words, the connection wire 11b has a first wiring part 11ba that is wired so as to pass near the upper support part 301 that is provided on the rotation axis side of the controller box 202. In addition, the connection wire 11b has a second wiring part 11bb that is wired along the top surface part 202a of the controller box 202.

[0065] 7 and 8, the connection lines 141a to 141c of the cable connectors 140a to 140c are wired along the side surface 223 and the top surface 202a of the controller box 202. The connection lines 141a to 141c pass near the upper support part 301 provided on the rotation axis side of the controller box 202, pass through the inside of the image reading device 10, and are connected to the operation unit 140 provided on the front side of the image forming apparatus 220. In this embodiment, the connection lines 141a to 141c are an example of operation unit connection lines.

[0066] Of the connection lines 141a-c, portion 141d that is wired near the upper support portion 301 that is provided on the rotation axis side of the controller box 202 is an example of a third wiring portion. Of the connection lines 141a-c, portion 141e that is wired along the upper surface portion 202a of the controller box 202 is an example of a fourth wiring portion. Of the connection lines 141a-c, portions 141f, 141g, and 141h that are wired along the side surface portion 232 of the controller box 202 are examples of a fifth wiring portion. Note that although portion 141d that is wired near the upper support portion 301 and portion 141e that is wired along the upper surface portion 202a are partially omitted from illustration in FIGS. 7 and 8, the connection lines 141a-c are wired, respectively.

[0067] This allows the cable connectors 11a, 140a-c to be inserted and removed without opening the metal cover 202c of the controller box 202. Also, the controller box 202 can be rotated to open and close without disconnecting the connection wires 11b, 141a-c. By routing the connection wires in this manner, even if the controller board 30 is made smaller and arranged on the opposite side of the rotation axis within the controller box 202, the controller box 202 can be rotated without disconnecting the connection wires. This facilitates maintenance of the drive control board 50 and other components arranged closer to the inside of the image forming apparatus 220 than the controller box 202 (in the direction of the arrow Y).

[0068] Next, the configuration of the controller box 202 near the connector 420 will be described with reference to FIG.

[0069] 9(a) and 9(b) are perspective views showing the vicinity of the connector 420 of the controller board 30 inside the controller box 202. Fig. 9(a) is a perspective view of the connector 420 as seen from the left side when standing at the rear of the image forming apparatus 220. Fig. 9(b) is a perspective view of the connector 420 as seen from the right side when standing at the rear of the image forming apparatus 220.

[0070] The sheet metal shapes 601 and 602 are shaped to follow the left-right direction (width) of the outer shape of the cable connector to be inserted into the connector 420. Therefore, when force is applied to the cable connector 11a to be inserted into the connector 420, an excessive load is not applied to the connector 420 mounted on the controller board 30.

[0071] 8, the sheet metal shape portion 600 protrudes so as to have a shape that fits along the inner side of the outer shape of the cable connector that is inserted into the connector 420. This prevents excessive load from being applied to the connector 420 mounted on the controller board 30 when force is applied to the cable connector 11a that is inserted into the connector 420 toward the inside of the image forming device 220. [Explanation of symbols]

[0072] 10 Image reader 11a cable connector 11b connecting line 30 Controller board 202 Controller Box 220 Image forming device 220a Top part 230 frames 301 Upper support part 302 Lower support part 305 Rotating shaft 306 Rotating shaft 420 Connector

Claims

1. An image forming apparatus for forming an image on a sheet, an image forming unit that forms an image on a sheet; an apparatus main body that houses the image forming unit; an image reading device having a reading unit for reading an image of a document, the image reading device being disposed above the device body in the vertical direction; a first control board provided in the apparatus body and controlling the driving of the image forming unit; a second control board connected to the image reading device via a connection line; a second connector mounted on an upper portion of the second control board in the vertical direction and connected to a first connector provided on the connection line; a board accommodating unit that accommodates the second control board, the board accommodating unit being rotatable about a rotation axis provided at one end side in a width direction of the image forming apparatus from a first position that covers the first control board relative to the apparatus body to a second position that exposes the first control board, the board accommodating unit has an upper surface portion constituting a part of a wall portion for accommodating the second control board, the upper surface portion having an opening through which the second connector is exposed; the connecting line has a first wiring portion that passes along the pivot axis side in the width direction of the image forming apparatus and is wired from the image reading device to the apparatus main body, and a second wiring portion that is wired from the pivot axis to the opening in the width direction. An image forming apparatus characterized by:

2. a third control board that supplies power to the second control board; the second control board is mounted on an end portion of the second control board that is close to the rotation axis in the width direction and has a power connector that is connected to the third control board.

2. The image forming apparatus according to claim 1, wherein the image forming apparatus is a recording medium.

3. the second control board is mounted on an end portion on the opposite side of the rotation axis in the width direction and includes a third connector into which a storage medium can be inserted; the board accommodating unit is located on the opposite side of the rotation axis in the width direction, and has a side surface that constitutes a part of a wall for accommodating the second control board, the side surface having an opening that exposes the third connector.

3. The image forming apparatus according to claim 1, wherein the image forming apparatus is a recording medium.

4. the second control board is provided at a position closer to the side surface portion than the rotation axis line in the accommodation space of the board accommodation unit; 4. The image forming apparatus according to claim 3, wherein the image forming apparatus is a recording medium.

5. an operation unit provided on a front side of the image forming apparatus and operable by a user, the operation unit being connected to the second control board via an operation unit connection line; the second control board further includes an operation unit connector connected to the operation unit connection line, the operation unit connector is mounted on an end portion on the opposite side of the rotation axis in the width direction, Another opening is provided on the side surface of the board accommodating unit to expose the operation unit connector.

5. The image forming apparatus according to claim 3, wherein the image forming apparatus is a recording medium.

6. The operation unit connection line has a third wiring portion that is wired from the operation unit to the device main body along the rotation axis line in the width direction of the image forming device, a fourth wiring portion that is wired to the top surface portion along the width direction, and a fifth wiring portion that is wired from the top surface portion to the other opening along the side surface portion in the vertical direction.

6. The image forming apparatus according to claim 5,

Images