JP2009222887A - Image forming apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a cable from being exposed, to execute an electrostatic countermeasure, to facilitate an access to the cable, to enhance working efficiencies in assembling work and disassembling work of an image forming part and an image reading part, and to facilitate maintenance. <P>SOLUTION: In this image forming apparatus, a scanner part 1 is electrically connected to a printer part 2 by the cable 4, and the scanner part 1 is turned, with respect to the printer part 2 to be connected in a relatively openable and closable manner. The printer part 2 is provided with a connector part 7 and is provided removably with a cable cover 5 for covering the cable 4 connected to the connector part 7 under an opened state of the scanner part 1, in a direction along a wire of the cable 4. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an image forming apparatus including an image reading unit that reads an image of a document and an image forming unit that forms an image on a sheet material.

  2. Description of the Related Art Conventionally, as an image forming apparatus such as a digital copying machine, a facsimile machine, or a multifunction machine (MFP) in which a printer and a printer are combined, a printer unit and a scanner unit are divided and unitized. . In order to operate the scanner unit, the scanner unit is usually arranged on the upper part of the image forming unit. The printer unit includes an image forming unit that forms an image on a sheet material, and the scanner unit includes an image reading unit that reads an image of a document.

  In such an image forming apparatus, the scanner unit is configured to be openable and closable with respect to the printer unit in order to facilitate operations such as maintenance, sheet material clogging processing (jam processing), and process cartridge replacement. . These printer unit and scanner unit are electrically connected by a cable.

  For example, in a copying machine, it is known that a sheet-through type scanner unit having an original sheet auto-feeder (ADF) on an original platen opens and closes with respect to a printer unit having a flat bed type scanner unit. Yes. In such a copying machine, the wires connecting the scanner unit and the printer unit are connected by a cable on the back of the apparatus and are exposed.

  If the cable connecting the scanner unit and the printer unit is exposed to the outside of the image forming apparatus in this way, it is not preferable in appearance, and the user may accidentally pull and damage the cables. There is also the possibility of damage to electrical components due to static electricity. Although there is a method of using a shielded cable for countermeasures against static electricity, it is not preferable in terms of design.

As a means for solving such a cable exposure problem, for example, an image forming apparatus as described in Patent Document 1 is known.
As shown in FIG. 11, the image forming apparatus described in Patent Document 1 includes a scanner unit 100 and a printer unit 102, and the scanner unit 100 is connected to the printer unit 102 via a hinge unit 101 so as to be freely opened and closed. ing.

  Inside the printer unit 102, a developing cartridge 105 including a photosensitive drum 104 is provided as an image forming unit. Image information read by the scanner unit 100 is written as an electrostatic image on the photosensitive drum 104 by the laser exposure device 106 and is developed by the developing cartridge 105 to form a toner image. This toner image is transferred to the sheet material P fed from the sheet material storage cassette 106, and is fixed by being pressurized and heated by the fixing device 107.

During maintenance, the scanner unit 100 is rotated and opened around the hinge unit 101, and various operations are performed by accessing the inside of the printer unit 102 through the openings of the scanner unit 100 and the printer unit 102.
The scanner unit 100 and the printer unit 102 are electrically connected by a cable 103. The cable 103 is wired in a cylindrical member 110 provided in the vicinity of the hinge portion 101, and the cables are accommodated in the image forming apparatus.
JP 2005-258025 A

  However, the structure described in Patent Document 1 has the following problems due to the structure in which the cable 103 is wired inside the cylindrical member 110 near the hinge portion 101.

  Since the cable 103 is housed in the cylindrical member 110 integrated with the housing, the cable 103 must be disconnected from the cylindrical member 110 each time the scanner unit 100 and the printer unit 102 are assembled or disassembled. . However, it is difficult to remove the cable 103 from the tubular member 110 in a narrow space near the hinge portion 101. In addition, there is a problem in that workability is poor because complicated work of combining and removing parts covering the cable 103 is forced.

  On the other hand, the cable 103 is covered only in the vicinity of the hinge portion 101 having a rotating shaft, and an electric board to which the cable 103 is connected is disposed inside the printer portion 102 (not shown). Therefore, in order to prevent exposure of the cable from the cylindrical member 110 near the hinge portion 101 to the electric board inside the apparatus and take measures against static electricity, it is necessary to provide another covering means until the electric board is reached. There is.

  An object of the present invention is to form an image that can prevent exposure of a cable between an image reading unit and an image forming unit, can easily access the cable, and can improve workability of assembly and disassembly operations and facilitate maintenance. To provide an apparatus.

  In order to achieve the above object, the present invention provides an image forming unit that forms an image on a sheet material, an image reading unit that reads an original, and the image reading unit that rotates relative to the image forming unit. A hinge having a pivot shaft for opening and closing, and connecting the image reading unit and the image forming unit; and a cable for electrically connecting the image reading unit and the image forming unit. In the image forming apparatus, the image forming unit is provided with a connector unit for connecting to the cable. The cable includes an image reading unit side portion and an image forming unit side in the vicinity of the rotation shaft of the hinge unit. The portion on the image forming portion side of the cable is wired in a direction away from the rotation axis of the hinge portion to reach the connector portion, and the image forming portion includes the Connector part and connector part A cable cover that covers a portion of the connected cable on the image forming unit side and secures a distance between the cable and the outside is detachably provided, and the cable reading unit is connected to the image forming unit by the image reading unit. In the opened state, the cable can be removed along the image forming unit side of the cable in a direction away from the rotation axis of the hinge unit, and the image reading unit is closed with respect to the image forming unit. It is characterized in that the attachment and detachment is prohibited in the state.

  According to the present invention, the cable between the image reading unit and the image forming unit can be prevented from being exposed to prevent static electricity, and the cable can be easily accessed. Simplification can be realized.

  Hereinafter, the present invention will be described in detail based on illustrated embodiments.

1, FIG. 2, FIG. 5 and FIG. 6 show the basic configuration of the image forming apparatus according to the first embodiment. 1 is a perspective view showing an entire structure of an image forming apparatus according to a first embodiment of the present invention in an open state, FIG. 2 is a partially broken perspective view of the image forming apparatus of FIG. 1 viewed from the back side, and FIG. 1 is a rear view of the apparatus 1 in a closed state, and FIG. 6 is a rear view of the apparatus in FIG. 1 in an open state.
In the figure, 1A shows the entire image forming apparatus. The image forming apparatus 1A includes a scanner unit 1 as an image reading unit that reads a document, and a printer unit 2 as an image forming unit that forms an image on a sheet material. ,have.

  Although not particularly illustrated, the printer unit 2 includes a developing cartridge including a photosensitive drum as an image forming unit, as in the related art. Image information read by the scanner unit is written as an electrostatic image on the photosensitive drum by the laser exposure device, and is developed by the developing cartridge to form a toner image. This toner image is transferred to a sheet material fed from a sheet material storage cassette, and is fixed by being pressurized and heated by a fixing device. However, the image forming means is not limited to the one using such a photosensitive drum, and may be a printer that forms an image by attaching ink droplets to a sheet material. In short, an image is formed on the sheet material. Anything to do.

  The scanner unit 1 is arranged on the upper part of the printer unit 2 and is configured to be opened and closed by rotating with respect to the printer unit 2 with the hinge unit 3 as a rotation center. By rotating the scanner unit 1 upward relative to the printer unit 2 and opening it, the inside of the printer unit 2 can be accessed from the opening between the scanner unit 1 and the printer unit 2. When exchanging a developing cartridge (not shown), jam processing, etc., the scanner unit 1 is opened upward, and the inside of the printer unit 2 is accessed from the openings of the scanner unit 1 and the printer unit 2. ing.

  The scanner unit 1 includes a flat bed type scanner unit 1a and a sheet-through type scanner unit 1b having a document pressure plate with a document auto feeder (ADF). The scanner unit 1 is provided so as to be openable and closable by a predetermined angle with respect to the printer unit 2 around the rotation axes of the hinge units 3a and 3b. About the code | symbol of a hinge part, in FIG. 1, although the left and right hinge parts are distinguished and attached | subjected as 3a, 3b, in the following description, unless it distinguishes in particular, suffixes a and b are not attached, It is simply expressed as a hinge part 3.

  The rotation axis of the hinge part 3 is an axis that becomes horizontal when the printer part 2 and the scanner part 1 are placed horizontally. A damper mechanism (not shown) that supports the opening / closing operation of the scanner unit 1 is installed in the vicinity of the hinge unit 3.

  The scanner unit 1 and the printer unit 2 are electrically connected by a cable 4. One end of the cable 4 is connected to an electric board (not shown) provided in the scanner unit 1, and the other end of the cable 4 is connected to an electric board (not shown) provided in the printer unit 2. As a result, electrical signals are transmitted and received between the scanner unit 1 and the printer unit 2. For example, image information read by the scanner unit 1 is transmitted to the printer unit 2.

  The printer unit 2 is provided with a connector unit 7 as shown in FIGS. A cable terminal 41 provided at one end of the cable 4 is detachably connected to the connector portion 7.

  As shown in an enlarged view in FIG. 7, the connector portion 7 is provided on the relay substrate 5 that is an electric substrate disposed on the back side of the printer portion 2. The relay substrate 5 is disposed on the inner back side of the printer unit 2 and partially protrudes upward from components such as a shield member (not shown). A connector portion 7 is provided on the side of the protruding portion 5a facing the hinge portion 3.

The protruding portion 5a is provided with a connector cover 8 in order to protect the relay substrate 5 and the connector portion 7 from contact with dust and dust during assembly and maintenance. The connector cover 8 is provided with an opening 9 that opens toward the hinge portion 3 so as not to interfere with the attachment and detachment of the cable 4 to and from the connector portion 7.
The shape of the connector cover 8 may be a shape in which the opening 9 is widened upward as shown in FIG. 3 with respect to the shape of FIG. 7, and is not particularly limited.

  When the scanner 4 is closed with respect to the printer 2, the cable 4, the protruding portion 5 a of the relay board 5, and the connector 7 are within the image forming apparatus 1 </ b> A as shown in FIG. 5. Become.

Next, a description will be given of a twisted configuration of the cable 4 that connects the printer unit 2 and the scanner unit 1.
The cable 4 is in the vicinity of the rotation axis of the hinge unit 3 that is the rotation center of the scanner unit 1 and inside the image forming apparatus 1A, and is connected to the cable unit 4a on the scanner unit side that is a part on the image reading unit side. It is folded back to the cable portion 4b on the printer unit side which is the image forming unit side portion. The cable portion 4 b on the printer portion side of the cable 4 is configured to be wired in a direction away from the rotation shaft of the hinge portion 3 and reach the connector portion 7. The cable portion 4 a on the scanner unit side is also wired in a direction away from the rotation shaft of the hinge unit 3 and connected to the connector unit 7 provided in the scanner unit 1. However, the wiring of the cable portion 4 a on the scanner unit side is not limited to this, and any configuration may be used as long as the cable 4 is folded in the vicinity of the rotation shaft of the hinge unit 3.

  The cable portion 4 b on the printer unit side is inserted at a right angle with respect to the connector portion 7 of the relay substrate 5, and is extended in the horizontal direction toward the rotation axis side of the hinge portion 3 that is the rotation center of the scanner unit 1. Further, the direction of the cable 4 is changed by 180 degrees at the folded portion 4c in the vicinity of the rotation axis of the hinge portion 3, and is connected to the cable portion 4a on the scanner portion side. The cable portion 4 a on the scanner unit side also extends in a direction away from the hinge unit 3 along the bottom surface that is the dividing surface of the scanner unit 1. The terminal 42 on the scanner unit side is connected to an electric board such as a control board (not shown) in the scanner unit 1.

  In this way, the cable 4 is connected so as to be perpendicular to the substrate surface of the relay substrate 5 of the printer unit 2, and the cable portion 4 b on the printer unit side is wired horizontally with respect to the opening surface of the printer unit 2. ing. Thereby, it is possible to minimize the vertical space required for turning the cable 4.

Further, as shown in FIG. 8, the cable portion 4a on the scanner portion side of the cable 4 and the cable portion 4b on the printer portion side are offset in the direction orthogonal to the rotation axis of the hinge portion 3 so as not to overlap in the vertical direction. You may let them.
In this embodiment, the direction orthogonal to the rotation axis of the hinge portion 3 corresponds to the front-rear direction when described in the direction based on the use state of the user. The offset amount (W) can be appropriately set based on the dimensions of the printer unit 2 and the scanner unit 1 so as to be an optimum value.

  By offsetting the cable 4 and turning it back, the space in the vertical direction can be saved. Further, when the scanner unit 1 is opened and closed, the cable 4 can be bent as well as twisted, so that the stress on the cable 4 can be reduced when the scanner unit 1 is repeatedly opened and closed.

  A feature of the present invention is that the printer unit 2 is provided with a cable cover 10 that covers the connector unit 7 and the cable 4 in a detachable manner. In this embodiment, the cable cover 5 is configured to cover a part of the cable 4 from the scanner unit 1 to the connector unit 7, that is, the cable folding part 4c and the cable part 4b on the printer unit side. As shown in FIG. 3, when the connector portion 7 is covered with the connector cover 8, the entire structure up to the connector cover 8 is covered.

Further, the cable 4, the protruding portion 5 a of the relay substrate 5, and the connector portion 7 are covered with the cable cover 5 in the closed state in which the scanner portion 1 is closed with respect to the printer portion 2, and the image is It will be in the state accommodated in the forming apparatus 1A. At this time, the cable cover 5 is prohibited from being attached to and detached from the printer unit 2. Therefore, in the closed state, the distance between the cable 4 and the external space can be secured by the cable cover 5, and damage to the electrical components due to static electricity can be prevented.
When the scanner unit 1 is opened and opened with respect to the printer unit 2, the cable cover 5 can be detached from the printer unit 2 as shown in FIG. Therefore, in the open state, the cable 4 can be attached to and detached from the connector portion 7 without removing other exterior parts and surrounding parts as long as the cable cover 5 is removed.

3 is a partial perspective view showing the cable cover 10 in a removed state, and FIG. 4 is a perspective view of the cable cover 10 shown in FIG. 3 as viewed from the opposite side.
The cable cover 10 includes an outer plate portion 10a, an inner plate portion 10b provided at a predetermined interval between the outer plate portion 10a, and an upper plate that connects the upper edge portions of the outer plate portion 10a and the inner plate portion 10b. It is the structure provided with the part 10c.

  An interval between the outer plate portion 10 a and the inner plate portion 10 b of the cable cover 10 is set to an interval that can accommodate the connector cover 8 that covers the connector portion 7. The height of the cable cover 10 is set to a height that covers the folded portion 4 c of the cable 4.

  The cable 4 is arranged so as to be shifted to the back side of the device to which the electric board is mounted, and the outer plate portion 10a of the cable cover 5 is arranged on the exterior of the device as shown in FIGS. It also serves as a part of the back cover 21.

  In this embodiment, a notch 22 corresponding to the cable cover 10 is provided at the upper end of the back cover 21 of the printer unit 2. The notch 22 has a horizontal edge 22a, a vertical edge 22b on the connector side, and an arcuate edge 22c connecting them.

  The back cover 21 is divided into left and right covers 21a and 21b, and the notch 22 is provided across the left and right covers 21a and 21b. The outer plate portion 10 a of the cable cover 10 is fitted into the notch 22, and the surface of the outer plate portion 10 a of the cable cover 5 is configured to be substantially flush with the surface of the back cover 21.

The outer side plate portion 10a is a horizontally long rectangular plate-like portion extending in a direction orthogonal to the hinge portion 3, and its connector side edge 10a3 is an arc-shaped edge extending in an arc shape from the vertical edge and the vertical edge. It is made up of. The connector side edge 10a3 is configured to be in contact with or close to the vertical edge 22b of the notch 22 and the arc-shaped edge 22c.
Further, a fixing screw hole 10d is provided in the vicinity of the upper end portion of the connector side edge 10a3 of the outer side plate portion 10a. In this example, the fixing screw hole 10d is provided in the vicinity of the corner between the connector side edge 10a3 and the upper edge 10a1.

The inner side plate portion 10b is divided into a hinge portion side portion 10b2 and a connector side portion 10b3 via a bent portion 10b1, and the hinge portion side portion 10b2 projects inward from the connector portion side portion 10b3. The upper half portion 10b4 of the connector portion side portion 10b3 is inclined so that the distance from the outer plate portion 10a becomes wider downward, and the lower half portion 10b5 is a vertical surface.
When the scanner unit 1 is closed, the folded cable portion 4a on the scanner unit side is stored along the upper surface of the upper plate portion 10c.

The cable cover 10 is supported by the printer unit 2 so as to be movable in a direction away from the rotation axis of the hinge unit 3 that is the rotation center of the scanner unit 1 with the scanner unit 1 opened.
In this embodiment, an insertion engaging portion 13 is provided between the cable cover 10 and the printer portion 2 so as to be separated from each other by moving the cable cover 10 in a direction away from the rotation shaft of the hinge portion 3. . The insertion engaging portions 13 are engaged with each other by moving the cable cover 10 in a direction approaching the rotation axis of the hinge portion 3.

  As shown in FIG. 4A, the insertion engaging portion 13 includes insertion convex portions 11a and 11b provided at the hinge side end portions of the outer plate portion 10a and the inner plate portion 10b of the cable cover 10, respectively. The insertion receiving portions 12a and 12b provided on the printer unit 2 side. For example, as shown in FIG. 4B, base portions 11a1 and 11b1 from which the insertion protrusions 11a and 11b protrude are provided at the hinge side end portions of the outer plate portion 10a and the inner plate portion 10b of the cable cover 10. It has been.

  The insertion convex portions 11a and 11b and the insertion receiving portions 121 and 12b are inserted by moving in the direction in which the cable cover 10 approaches the rotation axis of the hinge portion 3, and are moved away from the insertion portion. It is configured. In the illustrated example, the insertion convex portions 11a and 11b protrude in a rectangular shape toward the hinge portion 3, and the insertion receiving portions 12a and 12b have a concave shape.

An arrow A in FIG. 3 indicates a direction in which the cable cover 5 is removed. As shown in the figure, in a state in which the scanner unit 1 is opened, the scanner unit 1 is removed in a direction away from the rotation axis of the hinge unit 3 that is an opening / closing fulcrum shaft of the scanner unit 1, that is, with respect to the rotation center of the hinge unit 3. It is removed in the orthogonal direction.
In this example, the outer plate portion 10a of the cable cover 10 is configured to fit into the notch 22 of the back cover 21, so that the removal direction A is lifted along the vertical edge 22b and then climbs over the upper corner. Furthermore, it is obliquely above the horizontal line by a predetermined angle.

When fixing, the insertion convex portions 11a and 11b of the cable cover 10 are inserted into the insertion receiving portions 12a and 12b so that the end on the hinge portion side is supported, and the end on the connector portion side is screwed with the screw 10e. It is fixed to part 2. By fitting the insertion convex portion 11 and the insertion receiving portion 12, positioning of the end portion on the hinge portion side in the cable cover 5 in the vertical direction and the left-right direction (parallel to the rotation axis of the hinge portion 3) is performed. The
At the time of detachment, the insertion protrusion 11 is detached from the receiving portion 12 by removing one screw 10 e of the fixed end portion 7 and moving the cable cover 10 in a direction away from the hinge portion 3. At this time, the upper end corner of the vertical edge 22b of the slit 22 can smoothly get over the arcuate edge of the connector side edge 10a3.

  Therefore, even if the opening / closing angle of the scanner unit 1 is limited to prevent the camera from falling over, the cable cover 5 can be easily removed by pulling it out in a direction substantially parallel to the cable 4 and away from the rotation axis of the hinge unit 3. Can do.

In the image forming apparatus having the above-described configuration, opening the scanner unit 1 enables access to the inside of the printer 2, and performs development cartridge (CRG) replacement, sheet material jam processing, maintenance work, and the like.
When removing the cable 4, the cable cover 10 is first removed with the scanner unit 1 open, and then the terminal 41 of the cable 4 is removed from the connector unit 7. When the cable 4 is connected, the terminal 41 of the cable 4 may be inserted into the connector part 7 with the scanner unit 1 opened, and the cable cover 5 may be attached. Therefore, the cable 4 can be attached and detached without removing the exterior parts and the surrounding parts.

  In the attaching / detaching operation of the cable cover 5, the distance between the cable 4 and the external space can be secured by the cable cover 5, and damage to electrical components due to static electricity can be prevented. Further, the countermeasure against static electricity from the vicinity of the rotation axis of the hinge portion 3 serving as the opening / closing fulcrum of the scanner portion 1 to the connector portion 7 can be performed with one component of the cable cover 5. Therefore, the operability in attaching / detaching the scanner unit 1 is improved, which is advantageous in terms of cost. Furthermore, when removing the cable cover 5, the cable cover 5 can be removed without interfering with the cable 4, and assembly work is also easy.

  9 and 10 show the support structure of the cable cover of the image forming apparatus according to the second embodiment of the present invention. Since the entire configuration of the image forming apparatus is the same as that of the first embodiment, description thereof is omitted.

  The configuration of the cable cover 10 is basically the same as that of the first embodiment. In the following description, the support mechanism will be mainly described, and the same components will be denoted by the same reference numerals and the description thereof will be omitted.

  In the second embodiment, a pair of parallel rails 31 a and 31 b provided in the printer unit 2 and bosses 32 a and 32 b provided in the cable cover 10 are provided between the cable cover 10 and the printer unit 2. Yes. The bosses 32a and 32b constitute a rail engaging portion that is movably engaged along the rails 31a and 31b. The rails 31 a and 31 b are laid in parallel to each other in a direction orthogonal to the hinge portion 3. The bosses 31a and 31b protrude from the end portions of the cable cover 10 on the hinge portion side of the outer plate portion 10a and the inner plate portion 10b and move to the long holes extending in the longitudinal direction provided in the rails 31a and 31b. Engage freely. The state in which the cable cover 10 is attached is the same as in FIGS. 2 and 5, and the fixing portion at the connector side end portion is fixed to the printer portion 2 with a screw.

  Arrows A and B in FIG. 9 indicate the removal direction of the cable cover 10. That is, the fixing screw at the connector side end of the cable cover 10 is removed, and the cable cover 10 is rotated upward about the bosses 32a and 32b (in the direction of arrow B in the figure). At the same time, the bosses 32a and 32b are moved along the rails 31a and 31b in a direction away from the rotation axis of the hinge portion 3 (A direction in the figure).

  In the second embodiment, since the moving direction of the cable cover 10 is two directions of the A direction and the B direction, it is possible to cope with a configuration in which the scanner opening / closing angle is smaller. Further, since the boss portions 32a and 32b of the cable cover 10 are guided by the rails 31a and 31b, the boss portions 32a and 32b can easily reach the mounting position and have good workability.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, the configuration in which the scanner unit is provided in the upper part of the printer unit so as to be openable and closable is adopted. However, a relatively reverse configuration can be adopted based on the technical idea of the present invention. That is, a configuration in which the printer unit is arranged on the upper side with respect to the scanner unit may be employed.

1 is a perspective view showing an overall structure of an image forming apparatus according to Embodiment 1 of the present invention in an open state. FIG. 2 is a partially broken perspective view of the image forming apparatus of FIG. 1 viewed from the back side. FIG. 2 is a partial perspective view showing a state where a cable cover of the image forming apparatus of FIG. 1 is removed. (A) is the perspective view which looked at the cable cover of FIG. 3 from the other side, (B) is the fragmentary perspective view of (A). It is a rear view in the closed state of the apparatus of FIG. It is a rear view in the open state of the apparatus of FIG. It is a principal part expanded sectional view which shows the relationship between the connector part of FIG. 6, and a cable terminal. It is a top view which shows the example of a horizontal return of the cable of FIG. It is a perspective view which shows the structural example of the cable cover used for the image forming apparatus which concerns on Example 2 of this invention of FIG. It is the perspective view which looked at the cable cover of FIG. 9 from the other side. It is sectional drawing which shows the image forming apparatus which concerns on a prior art.

Explanation of symbols

1 Scanner unit (image reading unit)
2 Printer section (image forming section)
3, 3a, 3b Hinge part 4 Cable 4a Scanner part side cable part 4b Printer part side cable part 4c Folding part 7 Connector part 10 Cable cover

Claims (4)

An image forming unit for forming an image on a sheet material;
An image reading unit for reading an original;
A hinge portion for connecting the image reading portion and the image forming portion with a rotation shaft for allowing the image reading portion to turn relative to the image forming portion to be opened and closed;
A cable for electrically connecting the image reading unit and the image forming unit;
In the image forming apparatus, the image forming unit is provided with a connector for connecting to the cable.
The cable is configured to be folded back into a portion on the image reading unit side and a portion on the image forming unit side in the vicinity of the rotation shaft of the hinge unit, and the part on the image forming unit side of the cable is the hinge unit. Wired in a direction away from the rotation axis of the lead to the connector part,
The image forming portion is detachably provided with a cable cover that covers the connector portion and a portion of the cable connected to the connector portion on the image forming portion side and secures a distance between the cable and the outside.
The cable cover is removed so as to be away from the rotation axis of the hinge portion and along the portion of the cable on the image forming portion side when the image reading portion is opened with respect to the image forming portion. An image forming apparatus, wherein the image forming apparatus is capable of being attached and detached while the image reading unit is closed with respect to the image forming unit.   The cable cover and the image forming unit are engaged with each other by moving the cable cover in a direction approaching the rotation axis of the hinge unit, and the cable cover is rotated by the hinge unit. The image forming apparatus according to claim 1, further comprising an insertion engaging portion that is separated from each other by being moved away from the shaft.   Between the cable cover and the image forming unit, a rail provided in the image forming unit and a rail engaging unit provided in the cable cover and movably engaged with the rail are provided. The image forming apparatus according to claim 2.   The image forming apparatus according to claim 1, wherein the cable cover also serves as an exterior of the apparatus.

Images