Exposure apparatus and image forming apparatus

Abstract

In an exposure apparatus having a deformable folded portion in the wiring means extending from the light-emitting means when the exposure apparatus is moved, noise in the wiring means is suppressed compared to a case where there is no separating member to separate the folded portion. [Solution] An exposure apparatus comprising: a light-emitting means (1) that outputs light and is movably supported with respect to the main body (U1) of an image forming apparatus; a wiring means (32) connected to the light-emitting means (1), wherein when the light-emitting means (1) is attached to the main body (U1) of the image forming apparatus, the wiring means (32) has an excess length that folds back on one side in the direction of movement of the light-emitting means (1); and a separating means (21, 33) arranged on the folded portion (32d) of the wiring means (32) to separate the folded portions (32d) of the wiring means (32).

Description

Technical Field

[0001] The present invention relates to an exposure apparatus and an image forming apparatus having the exposure apparatus.

Background Art

[0002] Regarding an exposure apparatus that exposes to form a latent image in an electrophotographic image forming apparatus, the technique described in Patent Document 1 below is conventionally known.

[0003] Patent Document 1: Japanese Patent Application Laid-Open No. 2015-205497 describes a configuration in which an exposure unit (52) can be slid out and removed on the front side of an image forming apparatus (100). A cable (502) of the exposure unit (52) is housed in a bent state in a region (D1). When the exposure unit (52) is pulled forward, the bent portion extends, preventing the exposure portion (521) from being deformed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In an exposure apparatus having a folded-back portion of wiring means extending from a light emitting means that is deformable when the exposure apparatus moves, the technical problem is to suppress noise in the wiring means as compared with the case of not having a separating member that separates the folded-back portion.

Means for Solving the Problems

[0006] In order to solve the above technical problem, the exposure apparatus according to the invention described in claim 1 is A light-emitting means that outputs light, the light-emitting means being movably supported with respect to the main body of an image forming apparatus, A wiring means connected to the light-emitting means, wherein when the light-emitting means is attached to the main body of the image forming apparatus, the wiring means has excess length so as to fold back on one side in the direction of movement of the light-emitting means, A separating means is provided which is positioned at the folded portion of the wiring means and separates the folded portions of the wiring means from each other. It is characterized by having the following features.

[0007] The invention described in claim 2 is an exposure apparatus described in claim 1, A support means is provided to movably support the light-emitting means and is fixed to the main body of the image forming apparatus, The separation means formed on the support means, A passage is formed between the surface of the support means facing the light-emitting means and the back surface of the separating means facing the light-emitting means, through which the wiring means passes, It is characterized by having the following features.

[0008] The invention described in claim 3 is an exposure apparatus described in claim 2, The passing portion is positioned in the direction of movement at a location offset from the center in the width direction of the connection terminal between the wiring means and the light-emitting means. It is characterized by the following:

[0009] The invention described in claim 4 is an exposure apparatus described in claim 1, The separation means is positioned in a location corresponding to the position of the connection terminal on the light-emitting means side of the wiring means with respect to the direction of movement. It is characterized by the following:

[0010] The invention described in claim 5 is an exposure apparatus described in claim 1, The separation means is composed of a ferrite core that removes noise. It is characterized by the following:

[0011] The invention according to claim 6 is the exposure apparatus according to claim 1, wherein a second spacing means that is disposed at the folded portion and between the light-emitting means and the wiring means, and that spaces the wiring means away from the light-emitting means; and is characterized by comprising the same.

[0012] The invention according to claim 7 is the exposure apparatus according to claim 6, wherein the second spacing means is disposed on the light-emitting means and extends in the moving direction and is characterized by the same.

[0013] The invention according to claim 8 is the exposure apparatus according to claim 6, wherein the second spacing means is disposed at a position offset in the moving direction with respect to the position of the connection terminal on the light-emitting means side of the wiring means. and is characterized by the same.

[0014] The invention according to claim 9 is the exposure apparatus according to claim 1, wherein holding means for holding the wiring means extending from the connection terminal on the light-emitting means side of the wiring means, the holding means extending in a direction intersecting the moving direction; and is characterized by comprising the same.

[0015] The invention according to claim 10 is the exposure apparatus according to claim 9, wherein the wiring means is bent at a vicinity of an end of the holding means on a side opposite to the connection terminal such that a direction in which the wiring means extends faces the moving direction. and is characterized by the same.

[0016] The invention according to claim 11 is the exposure apparatus according to claim 10, wherein the wiring means is bent in a width direction of the wiring means. and is characterized by the same.

[0017] To solve the above technical problem, the image forming apparatus according to claim 12 is an image holding means, an exposure apparatus according to any one of claims 1 to 11, which exposes the image holding means to form a latent image, a developing means for developing the latent image of the image holding means, a transfer means for transferring the image developed by the developing means to a medium, a fixing means for fixing the image transferred to the medium, characterized by comprising.

Effect of the Invention

[0018] According to the invention described in claims 1 and 12, in an exposure apparatus in which wiring means extending from a light emitting means has a foldable portion that can be deformed when the exposure apparatus moves, compared with the case where there is no separating member that separates the foldable portion, noise in the wiring means can be suppressed. According to the invention described in claim 2, compared with the case where there is no passing portion, contact between the portion of the wiring means that has passed through the passing portion and other portions can be suppressed. According to the invention described in claim 3, compared with the case where the passing portion is arranged at a position corresponding to the center position in the width direction of the connection terminal, contact between the wiring means can be suppressed in the vicinity of the passing portion.

[0019] According to the invention described in claim 4, compared with the case where the separating means is arranged at a position deviated from the position of the connection terminal, contact between the portion of the wiring means extending from the connection terminal and other portions can be suppressed. According to the invention described in claim 5, compared with the case where the separating means is not constituted by a ferrite core, noise in the wiring means can be removed and the transmission quality can be improved. According to the invention described in claim 6, compared with the case where there is no second separating means, contact between the wiring means and the light emitting means can be suppressed. According to the invention described in claim 7, compared with the case where the second separating means is not arranged on the light emitting means, interference between the second separating means and the wiring means during the movement of the light emitting means can be suppressed.

[0020] According to the invention described in claim 8, interference between the second separating means and the wiring means extending from the connection terminal can be suppressed compared to the case where the second separating means is not offset from the position of the connection terminal. According to the invention described in claim 9, twisting of the wiring means extending from the connection terminal can be restricted compared to the case where there is no holding means. According to the invention described in claim 10, twisting of the wiring means can be suppressed compared to the case where the wiring means is not bent near the end of the holding means. According to the invention described in claim 11, the wiring means can be folded back more easily than when the wiring means cannot be folded in the width direction. [Brief explanation of the drawing]

[0021] [Figure 1] Figure 1 is an overall explanatory diagram of the image forming apparatus of Example 1. [Figure 2] Figure 2 is an explanatory diagram of the main parts of the image recording unit of Embodiment 1. [Figure 3] Figure 3 is an explanatory diagram of the frame portion of the image forming apparatus, including the exposure apparatus of Example 1. [Figure 4] Figure 4 is a perspective view of the writing device of Example 1. [Figure 5] Figure 5 is an explanatory diagram of the parts of the writing device of Embodiment 1, where Figure 5A is an explanatory diagram of the guided means, Figure 5B is a view from the direction of arrow VB in Figure 5A, Figure 5C is a perspective view of the light-emitting support means, Figure 5D is an explanatory diagram of the assembled state of the light-emitting support means and the guided means, and Figure 5E is a perspective view of the light-emitting means. [Figure 6] Figure 6 is an explanatory diagram of the support means on the main body side that supports the writing device. [Figure 7] Figure 7 is a view of Figure 6 from below. [Figure 8] Figure 8 is a cross-sectional view taken along line VIII-VIII in Figure 3. [Figure 9] Figure 9 is an explanatory diagram of the main parts of the wiring housing means in Embodiment 1. [Figure 10] Figure 10 is an enlarged view of the wiring and holding means of Embodiment 1. [Figure 11]Figure 11 is an explanatory diagram of a modified example. [Modes for carrying out the invention]

[0022] Next, with reference to the drawings, examples of embodiments of the present invention will be described, but the present invention is not limited to the following embodiments. For the sake of easier understanding of the following explanation, in the drawings, the front-to-back direction is the X-axis direction, the left-to-right direction is the Y-axis direction, and the up-to-down direction is the Z-axis direction. The directions or sides indicated by the arrows X, -X, Y, -Y, Z, and -Z are defined as front, rear, right, left, up, down, or front side, rear side, right side, left side, up side, and down side, respectively. Furthermore, in the diagram, a circle with a "·" inside represents an arrow pointing from the back to the front of the paper, and a circle with an "×" inside represents an arrow pointing from the front to the back of the paper. In the following explanation using diagrams, for the sake of ease of understanding, components other than those necessary for the explanation may be omitted. The diagrams have been omitted where appropriate. [Examples]

[0023] Figure 1 is an overall explanatory diagram of the image forming apparatus of Example 1. In Figure 1, the copier U, as an example of an image forming apparatus in Embodiment 1 of the present invention, has a printer unit U1, which is an example of an image recording means and an example of the main body of an image forming apparatus. A scanner unit U2, which is an example of a reading means and an example of an image reading device, is supported on the upper part of the printer unit U1. An auto feeder U3, which is an example of a document transport device, is supported on the upper part of the scanner unit U2.

[0024] At the top of the auto feeder U3 is a document tray TG1, which is an example of a means for storing media. Multiple documents Gi to be copied can be stacked and stored in the document tray TG1. Below the document tray TG1 is a document output tray TG2, which is an example of a document discharge section. Between the document tray TG1 and the document output tray TG2, a document transport roller U3b is positioned along the document transport path U3a.

[0025] A platen glass PG, an example of a transparent document tray, is positioned on the upper surface of the scanner unit U2. Below the platen glass PG in the scanner unit U2 of Embodiment 1, a reading unit U2a, an example of a reading unit, is positioned. The reading unit U2a of Embodiment 1 is supported so as to be movable in the left-right direction, an example of a sub-scanning direction, along the lower surface of the platen glass PG. The reading unit U2a is electrically connected to the image processing unit GS.

[0026] Figure 2 is an explanatory diagram of the main parts of the image recording unit of Embodiment 1. The image processing unit GS is electrically connected to the writing circuit DL of the printer unit U1. The writing circuit DL is electrically connected to the writing devices LHy, LHm, LHc, and LHk, which are examples of latent image formation means. The writing device LHy~LHk in Example 1 is, for example, composed of an LED head in which multiple LEDs are arranged in the main scanning direction. The writing device LHy~LHk is configured to output writing light corresponding to each of the colors Y, M, C, and K in response to the signal input from the writing circuit DL. The writing circuit DL and the power supply circuit E are controlled according to control signals from the control unit C, which is an example of a control means, to control the writing timing and power supply timing. In Figure 1, above the writing devices LHy to LHk, photoreceptors PRy, PRm, PRc, and PRk are arranged as an example of an image holding means. In Figures 1 and 2, the writing areas Q1y, Q1m, Q1c, and Q1k are formed by the regions on each photoreceptor PRy to PRk that are irradiated with writing light.

[0027] With respect to the rotation direction of each photoreceptor PRy to PRk, charging rollers Cry, CRm, CRc, and CRK, as an example of a charging means, are arranged on the upstream side of the writing area Q1y to Q1k. In Example 1, the charging rollers Cry to CRK are supported in contact with the photoreceptors PRy to PRk so as to be able to rotate by them. With respect to the rotational direction of the photoreceptors PRy to PRk, developing devices Gy, Gm, Gc, and Gk, as an example of a developing means, are arranged downstream of the writing areas Q1y to Q1k. The developing areas Q2y, Q2m, Q2c, and Q2k are formed by the regions where each photoreceptor PRy to PRk and each developing device Gy to Gk face each other.

[0028] With respect to the rotation direction of the photoreceptors PRy to PRk, primary transfer rollers T1y, T1m, T1c, and T1k, as an example of a primary transfer means, are positioned downstream of the developing apparatus Gy to Gk. The regions where each photoreceptor PRy to PRk and each primary transfer roller T1y to T1k face each other constitute primary transfer regions Q3y, Q3m, Q3c, and Q3k. Downstream of the primary transfer rollers T1y to T1k, relative to the rotation direction of the photoreceptors PRy to PRk, photoreceptor cleaners CLy, CLm, CLc, and CLk are positioned as an example of cleaning means. Downstream of the photoreceptor cleaners CLy to CLk, in relation to the rotational direction of the photoreceptors PRy to PRk, static eliminators Jy, Jm, Jc, and Jk, which are examples of static elimination means and examples of static elimination devices, are arranged.

[0029] The image-forming unit Uy of the Y color is configured as an example of a means for forming a visible image of the Y color, as in Example 1, by comprising the Y color photoreceptor PRy, charging roller CRy, writing device LHy, developing device Gy, primary transfer roller T1y, photoreceptor cleaner CLy, and static eliminator Jy, thereby forming a Y color toner image. Similarly, the image-forming units Um, Uc, Uk of the M, C, K colors are configured by comprising each photoreceptor PRm, PRc, PRk, charging rollers CRm, CRc, Crk, writing devices LHm, LHc, LHk, developing devices Gm, Gc, Gk, primary transfer rollers T1m, T1c, T1k, photoreceptor cleaners CLm, CLc, CLk, and static eliminators Jm, Jc, Jk.

[0030] Above the photoreceptors PRy~PRk, a belt module BM is positioned as an example of an intermediate transfer device. The belt module BM is an example of an image holding means and has an intermediate transfer belt B as an example of an intermediate transfer means. The intermediate transfer belt B is composed of an endless strip-shaped member. In Example 1, the intermediate transfer belt B is rotatably supported by a tension roller Rt as an example of a tensioning means, a walking roller Rw as an example of a bias correction means, an idler roller Rf as an example of a driven means, a backup roller T2a as an example of a counter means for the secondary transfer region, primary transfer rollers T1y to T1k, and a drive roller Rd as an example of a drive member. In Example 1, the intermediate transfer belt B rotates when drive is transmitted to the drive roller Rd.

[0031] A secondary transfer roller T2b, as an example of a secondary transfer means, is positioned opposite the backup roller T2a across the intermediate transfer belt B. The backup roller T2a and the secondary transfer roller T2b, etc., constitute the secondary transfer unit T2 of Embodiment 1, which is an example of a transfer device. Furthermore, the area where the secondary transfer roller T2b and the intermediate transfer belt B come into contact constitutes the secondary transfer area Q4. A belt cleaner CLb is positioned downstream of the secondary transfer region Q4 with respect to the rotation direction of the intermediate transfer belt B, as an example of a cleaning device for the intermediate transfer body. The primary transfer rollers T1y to T1k, the intermediate transfer belt B, and the secondary transfer unit T2, etc. constitute the transfer apparatus T1+T2+B of Example 1, which is an example of a transfer means. Furthermore, the image recording unit Uy to Uk and the transfer apparatus T1+T2+B constitute the image recording unit Uy to Uk+T1+T2+B of Example 1.

[0032] In Figure 1, below the image-making section Uy~Uk, four pairs of left and right guide rails GR are provided as an example of a guide mechanism. Each guide rail GR supports paper feed trays TR1, TR2, TR3, and TR4, which are an example of a medium storage mechanism, so that they can move in and out in the front-to-back direction. Recording paper S, an example of a medium, is stored in the paper feed trays TR1~TR4. A pickup roller Rp, as an example of an ejection mechanism, is positioned in the upper left of the paper feed trays TR1 to TR4. Downstream of the pickup roller Rp, with respect to the transport direction of the recording paper S, a paper handling roller Rs, as an example of a paper handling mechanism, is positioned. Downstream of the paper handling roller Rs, with respect to the transport direction of the recording paper S, a paper feed path SH1 extending upward is formed, as an example of a medium transport path. Multiple transport rollers Ra, as an example of a transport mechanism, are positioned in the paper feed path SH1.

[0033] A manual feed tray TR0, an example of a means of storing media, is located in the lower left of the copier U. The manual feed tray TR0 has a pickup roller Rp0 located in its upper right corner, and the manual feed path SH0 extends from it. The manual feed path SH0 merges with the feed path SH1. In the paper feed path SH1, a register roller Rr is positioned upstream of the secondary transfer area Q4 as an example of a means for adjusting the transport timing. The transport path SH2 extends from the register roller Rr towards the secondary transfer area Q4.

[0034] A fixing device F, as an example of a fixing means, is positioned downstream of the secondary transfer region Q4 with respect to the transport direction of the recording paper S. The fixing device F includes a heating roller Fh as an example of a fixing member for heating, and a pressure roller Fp as an example of a fixing member for pressurizing. The fixing region Q5 is formed by the contact area between the heating roller Fh and the pressure roller Fp. A lower paper output tray TRh, which is an example of a media output section, is formed on the upper surface of the printer unit U1. In Embodiment 1, a finisher U4, which is an example of a post-processing device, is installed on the lower paper output tray TRh. Above the fuser unit F, a paper output path SH3, which is an example of a transport path, extends toward the lower paper output tray TRh. A paper output roller Rh, which is an example of a media transport means, is positioned at the downstream end of the paper output path SH3.

[0035] Above the lower output tray TRh, the upper output tray TRh2 is positioned as an example of a media discharge section. Above the fuser unit F, an upper transport path SH4 is formed, branching off from the output path SH3 and extending toward the upper output tray TRh2. The upper transport path SH4 is equipped with a reversible roller Rb that can rotate in both forward and reverse directions, as an example of a media transport means. Above the branching point between the paper discharge path SH3 and the upper transport path SH4, a reversal path SH6, as another example of a media transport path, branches off to the lower left from the upper transport path SH4.

[0036] A gate GT1, as an example of a switching mechanism, is positioned across the branching point between the paper output path SH3 and the upper transport path SH4, and the branching point between the upper transport path SH4 and the reversal path SH6. The gate GT1 guides the recording paper S from the fuser unit F toward the lower paper output tray TRh and is supported so as to be switchable between a first guiding position (second position) that guides the recording paper S from the upper transport path SH4 to the reversal path SH6, and a second guiding position (first position) that guides the recording paper S from the fuser unit F toward the upper transport path SH4. The reversing path SH6 is equipped with multiple transport rollers Ra, which serve as an example of a means for transporting the media. The downstream end of the reversing path SH6 merges with the paper feed path SH1 upstream of the register roller Rr.

[0037] (Explanation of image formation process) In the copier U of Embodiment 1, which has the above configuration, when an operator manually places the original document Gi on the platen glass PG to perform copying, the reading unit U2a moves from its initial position to the left and right, and the original document Gi on the platen glass PG is scanned while being exposed. Also, when the original document Gi is automatically transported and copied using the auto feeder U3, multiple original documents Gi placed in the original tray TG1 are sequentially transported and passed through the reading positions of the originals on the platen glass PG and discharged into the original output tray TG2. Each original document Gi passing sequentially through the reading positions on the platen glass PG is exposed and scanned by the reading unit U2a. The reflected light from the original document Gi is received by the reading unit U2a. The reading unit U2a converts the received reflected light from the original document Gi into an electrical signal. When double-sided reading of the original document Gi is performed, the original document Gi is also read by the reading sensor.

[0038] The image processing unit GS receives electrical signals output from the reading unit U2a. The image processing unit GS converts the R, G, and B color electrical signals read by the reading unit U2a into image information for latent image formation using yellow (Y), magenta (M), cyan (C), and black (K). The image processing unit GS outputs the converted image information to the writing circuit DL of the printer unit U1. Note that if the image is a monochrome image, the image processing unit GS outputs only black (K). The image information is output to the DL programming circuit. The writing circuit DL outputs control signals corresponding to the input image information to the writing devices LHy~LHk. The writing devices LHy~LHk output writing light corresponding to the control signals.

[0039] Each photoreceptor PRy~PRk is driven to rotate when image formation begins. A charging voltage is applied to the charging rollers CRy~CRk from the power supply circuit E. Therefore, the surface of the photoreceptors PRy~PRk is charged by the charging rollers CRy~CRk. In the writing area Q1y~Q1k, the charging photoreceptors PRy~PRk are charged by the writing device LHy~LHk to form an electrostatic latent image on their surface. In the developing area Q2y~Q2k, the electrostatic latent image of the photoreceptors PRy~PRk is developed into a toner image, an example of a visible image, by the developing device Gy~Gk.

[0040] The developed toner image is transported to the primary transfer region Q3y~Q3k, which is in contact with the intermediate transfer belt B, an example of an intermediate transfer medium. In the primary transfer region Q3y~Q3k, a primary transfer voltage with the opposite polarity to the toner's charge polarity is applied from the power supply circuit E to the primary transfer rollers T1y~T1k. Therefore, the toner image on each photoreceptor PRy~PRk is transferred to the intermediate transfer belt B by the primary transfer rollers T1y~T1k. In the case of a multi-color toner image, the downstream toner image is transferred on top of the toner image transferred to the intermediate transfer belt B in the upstream primary transfer region. After primary transfer, any residue or deposits on the photoreceptor PRy~PRk are cleaned with photoreceptor cleaner CLy~CLk. After cleaning, the surface of the photoreceptor PRy~PRk is destaticized with static eliminator Jy~Jk. After destaticization, the surface of the photoreceptor PRy~PRk is recharged with charging roller CRy~CRk. The monochromatic or multicolor toner images transferred onto the intermediate transfer belt B by the primary transfer rollers T1y to T1k in the primary transfer region Q3y to Q3k are then transported to the secondary transfer region Q4.

[0041] The recording paper S on which images are recorded is picked up by the pickup roller Rp of the paper feed tray TR1 to TR4 used. If multiple sheets of recording paper S are picked up together by the pickup roller Rp, they are separated one by one by the separator roller Rs. The recording paper S separated by the separator roller Rs is transported along the paper feed path SH1 by the transport roller Ra. The recording paper S transported along the paper feed path SH1 is sent to the register roller Rr. Recording paper S loaded in the manual feed tray TR0 is also sent to the paper feed path SH1 via the manual feed path SH0 by the pickup roller Rp0. The register roller Rr transports the recording paper S to the secondary transfer area Q4 at the same time that the toner image formed on the intermediate transfer belt B is transported to the secondary transfer area Q4. The secondary transfer roller T2b is supplied with a secondary transfer voltage opposite to the charge polarity of the toner by the power supply circuit E. Therefore, the toner image on the intermediate transfer belt B is transferred from the intermediate transfer belt B to the recording paper S.

[0042] After secondary transfer, the intermediate transfer belt B is cleaned of any deposits or other materials adhering to its surface using the belt cleaner CLb. The recording paper S on which the toner image has been secondarily transferred is heated and fixed as it passes through the fixing area Q5. If post-processing is required, the image-fixed recording paper S is transported to a finisher U4, which is an example of a post-processing device installed in the lower output tray TRh. If no post-processing is required for the recording paper S, it is transported to the upper output tray TRh2. When the recording paper S is transported to the lower output tray TRh, the gate GT1 moves to the first guide position. Therefore, the recording paper S sent out from the fuser F is transported along the output path SH3. The recording paper S transported along the output path SH3 is then transported by the output roller Rh towards the finisher U4 and the lower output tray TRh. The finisher U4 performs a binding process on the recording paper S as an example of post-processing, and then ejects the recording paper S into the lower output tray TRh.

[0043] When the recording paper S is to be ejected to the upper output tray TRh2, the gate GT1 moves to the second guide position and is ejected to the upper output tray TRh2. When the recording paper S is to be printed on both sides, gate GT1 moves to the second guide position. Then, when the trailing edge of the recording paper S passes through gate GT1, gate GT1 moves to the first guide position and the reversing roller Rb rotates in the reverse direction. As a result, the recording paper S is guided by gate GT1 and sent to the reversing path SH6. The recording paper S that has been transported along the reversing path SH6 is sent to the register roller Rr with its front and back sides reversed.

[0044] (Explanation of writing devices LHy~LHk) Figure 3 is an explanatory diagram of the frame portion of the image forming apparatus, including the exposure apparatus of Example 1. Figure 4 is a perspective view of the writing device of Example 1. Figure 5 is an explanatory diagram of the parts of the writing device of Embodiment 1, where Figure 5A is an explanatory diagram of the guided means, Figure 5B is a view from the direction of arrow VB in Figure 5A, Figure 5C is a perspective view of the light-emitting support means, Figure 5D is an explanatory diagram of the assembled state of the light-emitting support means and the guided means, and Figure 5E is a perspective view of the light-emitting means. In Figure 3, in the copier U of Embodiment 1, the writing devices LHy to LHk are supported by the marking guide 11, which is an example of a support means on the main body side. Note that Figure 3 shows a state in which only the K-colored writing device LHk is installed, and the other writing devices LHy to LHc have been removed. In the following explanation, since the writing devices LHy~LHk for each color are configured similarly, the notations y, m, c, and k may be omitted.

[0045] In Figures 3 to 5, the writing devices LHy to LHk each have an LPH body 1 as an example of a light-emitting means. The LPH body 1 is formed in a rod shape extending in the front-to-back direction. LED elements are arranged linearly along the front-to-back direction on the LPH body 1. A lens, as an example of an optical means, is arranged on the upper surface of the LPH body 1. The LPH unit 1 is supported by an LPH holder 2, which is an example of a light-emitting support means. The LPH holder 2 extends in the front-to-back direction. The LPH holder 2 is formed in a rectangular tube shape with an open top, having left and right side walls and a bottom wall. Openings (not shown) are appropriately formed in the left and right side walls and the bottom wall of the LPH holder 2 for installing wiring, sensors, etc.

[0046] An LPH guide 3, an example of a guided means, is supported on the left side of the LPH holder 2. The LPH guide 3 is formed in a plate shape that extends in the front-to-back direction. The LPH guide 3 has a plate portion 3a that extends in the vertical direction. A rail portion 3b that extends outward to the left is formed on the upper part of the plate portion 3a. At the lower end of the plate portion 3a, a second separation plate 3c is formed at the central position in the front-rear direction, as an example of a second separation means. The second separation plate 3c is formed in a plate shape that extends in the front-rear direction and the left-right direction. The second separation plate 3c is positioned below the bottom wall of the LPH holder 2.

[0047] Figure 6 is an explanatory diagram of the support means on the main body side that supports the writing device. Figure 7 is a view of Figure 6 from below. Figure 8 is a cross-sectional view taken along line VIII-VIII in Figure 3. Figure 9 is an explanatory diagram of the main parts of the wiring housing means in Embodiment 1. In Figures 3 and 6, the marking guide 11 has a front plate portion 12, a rear plate portion 13, and a guide body portion 14 as an example of a support body portion. The guide body 14 has four guide sections 16y, 16m, 16c, and 16k formed therein, corresponding to the four writing devices LHy to LHk. In the following explanation, since each guide section 16y to 16k is constructed similarly, the notations y, m, c, and k may be omitted.

[0048] The guide section 16 is formed in a shape that extends in the front-rear direction along the writing devices LHy~LHk. A guide rail 17, as an example of a guiding means, is formed on the left side of each guide section 16. The guide rail 17 supports the LPH guide 3 so that it can move in the front-rear direction. Therefore, the writing devices LHy~LHk are supported by the marking guide 11 so that they can move in the front-rear direction. Thus, during maintenance work such as inspection or replacement of the writing devices LHy~LHk, the writing devices LHy~LHk can be individually inserted and removed from the copier U in the front-rear direction. In Figures 6, 8, and 9, a cable housing section 18, as an example of a wiring housing means, is formed in the center of the guide section 16 in the front-rear direction. The cable housing section 18 is formed as a recessed shape that is indented downwards.

[0049] A raised base plate 21, as an example of a means for separating cables, is supported at the bottom of the cable housing section 18. The raised base plate 21 is positioned above the bottom surface 18a of the cable housing section 18, that is, on the side closer to the writing devices LHy~LHk. The raised base plate 21 is formed in a plate shape. A wiring opening 22, as an example of a wiring passage, is formed at the lower part of the raised base plate 21. Therefore, the wiring opening 22 is formed between the bottom surface 18a and the back surface of the upper surface 21a of the raised base plate 21, which faces the writing devices LHy~LHk.

[0050] Figure 10 is an enlarged view of the wiring and holding means of Embodiment 1. In Figures 8 and 9, the LHy~LHk programmer of Embodiment 1 has a connector 31, which is an example of a connection terminal, located at the bottom of the LPH main unit 1. The connector 31 is located in a position corresponding to the cable housing section 18 when the programmer LHy~LHk is mounted on the marking guide 11. A Flexible Flat Cable (FFC) 32, as an example of a wiring means, is connected to the connector 31. The FFC 32 has a wide, flat cross-sectional shape. The FFC 32 supplies power to the LPH main unit 1 and transmits and receives control signals. In Figure 10, the FFC 32 has an upper end portion 32a that extends downward from the connector 31. The width direction of the flattened upper end portion 32a is in the front-to-back direction.

[0051] A first bent portion 32b is connected to the lower end of the upper portion 32a. The first bent portion 32b is folded back to the right. The second folded portion 32c is connected to the right end of the first folded portion 32b. The second folded portion 32c is folded back to the left. Therefore, the second folded portion 32c is folded back 180° in the opposite direction to the first folded portion 32b. Thus, the first folded portion 32b and the second folded portion 32c are in a double-layered state. A third bent portion 32d is connected to the left side of the second bent portion 32c. The third bent portion 32d is bent at an angle that is inclined with respect to the front-rear and left-right directions relative to the second bent portion 32c. Therefore, the third bent portion 32d is bent in the width direction and extends forward. That is, the direction in which the third bent portion 32d extends changes by 90° with respect to the second bent portion 32c. In addition, as the third bent portion 32d is bent, the width direction of its flattening changes from the front-rear direction to the left-right direction.

[0052] In Figures 8 and 9, the third bent portion 32d is curved backward when it reaches the front of the cable housing portion 18. That is, the front of the third bent portion 32d is folded back in a bulging state. Therefore, as a whole, when the writing devices LHy~LHk are attached to the main body of the copier U, the FFC 32 has excess length so that it folds back on the front side, which is one side in the direction of movement of the writing devices LHy~LHk. The rear end of the third bent portion 32d, after it has been folded back, passes through the wiring opening 22. A ferrite core 33, as an example of a separation means, is attached to the third bent portion 32d at a position in front of the wiring port 22. Therefore, the FFC 32 in Embodiment 1 is in a state where it penetrates the ferrite core 33. The ferrite core 33 suppresses and removes noise when electricity or control signals flow through the FFC 32.

[0053] In Figure 7, the FFC32 that has passed through the wiring port 22 is guided to the lower side of the marking guide 11. The yellow and red FFC32-1 and 32-2 are bent to the right after passing through the wiring port 22. Then, when the yellow and red FFC32-1 and 32-2 reach the right end of the marking guide 11, they are bent backward. The rear ends of the FFC32-1 and 32-2 extend toward the control unit C of the main body of the copier U. The C-colored and K-colored FFC32-3 and 32-4 extend backward after passing through the wiring port 22, and then are bent to the right. When the C-colored and K-colored FFC32-3 and 32-4 reach the right end of the marking guide 11, they are bent backward. The rear ends of the FFC32-3 and 32-4 extend toward the control unit C of the main body of the copier U.

[0054] In Figure 10, a retaining film 34, as an example of a retaining means, is arranged along the upper end 32a of the FFC 32. The upper end of the retaining film 34 is supported near the connector 31. The retaining film 34 is formed in a film shape that extends vertically along the upper end 32a. That is, the retaining film 34 extends vertically, intersecting the front-to-back direction, which is the direction of movement of the writing devices LHy~LHk. In Embodiment 1, the length of the retaining film 34 is set so that its lower end corresponds to the lower end of the upper end 32a. Therefore, in Embodiment 1, the FFC 32 is bent at the end of the third bent portion 32d near the lower end of the retaining film 34 on the side opposite to the connector 31, so that the direction in which the FFC 32 extends is in the front-to-back direction. The exposure apparatus (exposure unit) of Example 1 is composed of the LPH main body 1, LPH holder 2, LPH guide 3, marking guide 11, connector 31, FFC 32, ferrite core 33, holding film 34, etc.

[0055] (Explanation of the positional relationships of each part) In Embodiment 1, the raised base plate 21 is positioned corresponding to the third bent portion 32d, which is the folded-over portion of the FFC 32. Therefore, the raised base plate 21 is positioned between the first bent portion 32b, the second bent portion 32c, which are located below the connector 31, and the folded-over portion of the third bent portion 32d. Furthermore, in Embodiment 1, the raised base plate 21 is formed with a width in the front-to-back direction that is longer than the width of the connector 31 and the width of the upper end portion 32a. Therefore, the entrance portion of the wiring port 22 is positioned off-center from the width direction of the connector 31, etc. Thus, the wiring port 22 is positioned so as not to overlap with the positions of the first bent portion 32b and the second bent portion 32c below the connector 31.

[0056] Furthermore, the raised base plate 21 in Embodiment 1 is positioned below the connector 31 when the writing devices LHy~LHk are mounted on the marking guide 11. In other words, the raised base plate 21 is positioned at a location corresponding to the position of the connector 31 with respect to the front-to-back direction, which is the direction of movement of the writing devices LHy~LHk. Furthermore, the second separation plate 3c in Embodiment 1 is positioned opposite the upper side of the third bent portion 32d. Therefore, the second separation plate 3c is positioned between the third bent portion 32d and the LPH body 1 or LPH holder 2. The second separation plate 3c extends along the front-rear direction, which is the direction in which the third bent portion 32d extends. Also, the second separation plate 3c is positioned offset forward in the front-rear direction relative to the position of the connector 31.

[0057] (Effect of Example 1) In the copier U of Embodiment 1 having the above configuration, when the writing devices LHy~LHk are mounted on the marking guide 11 of the copier U, the FFC 32 is housed with excess length. When the writing devices LHy~LHk are attached or detached, the posture of the FFC 32 changes between a curved state and an extended state. At this time, the posture of the FFC 32 may bulge more than set, buckle in the middle, or deform into an accordion shape. In other words, the FFC 32 may be in a posture or curved state different from the set posture. If the FFC 32 is in an unexpected curved state, the third bent portions 32d of the FFC 32 may come into contact with each other, or the third bent portions 32d may come into contact with the LPH body 1, etc. If the third bent portions 32d come into contact with each other, noise may be generated in the electrical signals flowing through the FFC 32. In particular, the third bent portion 32d of the FFC32 is housed in the cable housing 18 inside the copier U. Therefore, it is difficult for the operator to visually check the state of the bent portion after the writing devices LHy~LHk have been installed. Consequently, it is difficult for the operator to check whether the FFC32 is in the set position each time they perform work.

[0058] Therefore, in the technology described in Patent Document 1, which does not have a configuration to counteract whether the FFC32 is in a set position, there is a risk that noise may be generated in the folded portion of the FFC32. Consequently, the signal transmission quality may also deteriorate. In contrast, in Embodiment 1, the raised base plate 21 is positioned between the folded portions of the first bent portion 32b, the second bent portion 32c, and the third bent portion 32d. The first bent portion 32b and the second bent portion 32c are stable in the height direction, and are prone to contact when the lower part of the fold bulges upward. In contrast, in Embodiment 1, the raised base plate 21 prevents the FFCs 32 from coming into contact with each other. In particular, in Example 1, the raised base plate 21 is positioned corresponding to the position of the connector 31. Therefore, contact between the FFCs 32 is more easily suppressed compared to when the position of the raised base plate 21 is offset from the position of the connector 31. It is preferable to provide the raised base plate 21 at a position corresponding to the connector 31, but it is also possible to provide it at an offset position. Furthermore, although a plate-like form has been illustrated for the raised base plate 21, it is not limited to this. It is also possible to shorten the length in the front-to-back direction to make it a hook-claw shape. Furthermore, although an example has been provided with one raised base plate 21, it is also possible to provide two or more.

[0059] Furthermore, in Embodiment 1, the lower portion of the third bent portion 32d is guided to the lower surface of the marking guide 11 through the wiring port 22. Therefore, contact between the lower portion of the FFC 32 of the raised base plate 21 and other portions of the FFC 32 is reliably suppressed. Furthermore, in Embodiment 1, the wiring port 22 is positioned offset forward from the connector 31. Therefore, the portion of the FFC 32 near the wiring port 22 bulges upward, preventing it from contacting the portion of the FFC 32 below the connector 31. While it is preferable for the wiring port 22 to be positioned offset from the connector 31, it is also possible for it to be positioned below the connector 31.

[0060] Furthermore, in Example 1, a ferrite core 33 is attached to the FFC 32 in front of the raised base plate 21. Therefore, noise is suppressed and removed by the ferrite core 33. Also, even if the upper part of the FFC 32 tries to come into contact with the lower part near the ferrite core 33, the ferrite core 33 prevents it. Therefore, contact of the FFC 32 is suppressed even in the vicinity of the ferrite core 33.

[0061] Furthermore, in Example 1, the second separation plate 3c is positioned below the LPH main body 1 and the LPH holder 2. Therefore, even if the FFC 32 in the cable housing section 18 bulges upward significantly, the second separation plate 3c restricts this upward bulging. Thus, contact between the LPH main body 1 and the LPH holder 2 and the FFC 32 is suppressed. The second separation plate 3c is made of an insulating material or has an insulating coating on its surface. Therefore, the second separation plate 3c suppresses noise generation caused by the FFC 32 contacting the sheet metal LPH holder 2. In particular, the second separation plate 3c in Embodiment 1 is provided on the LPH guide 3. Therefore, when the LPH body 1 moves in the front-rear direction, the second separation plate 3c also moves. In a configuration where the second separation plate 3c does not move, there is a risk that the upper end portion 32a of the FFC 32, which moves back and forth, may interfere with the immobile second separation plate 3c. In contrast, in Embodiment 1, when the LPH body 1 moves back and forth, the second separation plate 3c also moves integrally, and there is no risk of interference with the upper end portion 32a of the FFC 32.

[0062] Furthermore, the second separation plate 3c in Example 1 is positioned at an offset location relative to the position of the connector 31. Therefore, compared to the case where the second separation plate 3c is positioned directly below or near the connector 31, the second separation plate 3c is less likely to interfere with the upper end portion 32a of the FFC 32 extending from the connector 31. Furthermore, in Embodiment 1, a retaining film 34 is positioned along the upper end portion 32a. In a configuration without the retaining film 34, when the LPH body 1 moves back and forth, the upper end portion 32a may be subjected to force in the front-to-back direction and deform in a twisting manner. In contrast, in Embodiment 1, even if the upper end portion 32a attempts to deform in a twisting manner, it comes into contact with the retaining film 34, and the deformation is restricted. Therefore, it is suppressed that the FFC 32 deforms unexpectedly and takes a posture different from the set posture. In addition, it is suppressed that the FFCs 32 come into contact with each other.

[0063] In particular, in Example 1, the boundary between the upper end portion 32a and the first bent portion 32b at the lower end is near the lower end of the retaining film 34. Therefore, the vertical length of the retaining film 34 corresponds to the vertical length of the upper end portion 32a. Consequently, if the retaining film 34 is shorter than the upper end portion 32a, twisting of the upper end portion 32a may occur in the portion where the retaining film 34 does not follow. In contrast, in Example 1, the retaining film 34 is positioned over the entire vertical area of ​​the upper end portion 32a, thereby suppressing twisting of the upper end portion 32a. It is preferable that the length of the retaining film 34 be the same as the length of the upper end portion 32a, but it is also possible to make it shorter. Furthermore, while it is desirable to provide the retaining film 34, it is also possible to omit it if the upper end portion 32a is sufficiently short or sufficiently thick and there is little concern about it twisting.

[0064] Furthermore, in Example 1, the FFC 32 is bent at the first bent portion 32b and the second bent portion 32c, and then bent at the third bent portion 32d. If the upper end portion 32a or the first bent portion 32b is bent directly to the third bent portion 32d, the elastic restoring force of the bent portion will cause it to unfold, making it difficult to stabilize the shape. In contrast, in Example 1, the FFC 32 is bent at the first bent portion 32b and the second bent portion 32c, and then bent at the third bent portion 32d, making it easier to stabilize the shape. Also, the first bent portion 32b and the second bent portion 32c are in a double-layered state, making it easier to ensure strength. Therefore, when the LPH body 1 moves back and forth, the force acting on the FFC 32 will prevent the first bent portion 32b and the second bent portion 32c from undergoing unexpected deformation. Therefore, contact between the FFC32s is suppressed. Furthermore, in Embodiment 1, the third bent portion 32d is bent so that the width direction changes from the front-to-back direction to the left-to-right direction. When the width direction is in the front-to-back direction, it is difficult to form a folded portion with excess length, but in Embodiment 1, where the width direction is changed by bending, it is possible to form a folded portion. Furthermore, the bending of FFC32 is not limited to the embodiment illustrated in Example 1, and it is also possible to fold it multiple times. In addition, if the material of FFC32 is one that easily retains its shape, it is also possible to reduce the number of folds.

[0065] (Example of change) Although embodiments of the present invention have been described in detail above, the present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the gist of the present invention as described in the claims. Examples of modifications to the present invention (H01) to (H05) are shown below. (H01) In the above embodiment, a copier U was given as an example of an image forming apparatus, but the invention is not limited to this, and can be configured with, for example, a printer, a fax machine, or a multifunction device having multiple or all of these functions. Furthermore, the invention is not limited to an electrophotographic image forming apparatus, but can be applied to any image forming apparatus such as an inkjet or thermal transfer type.

[0066] (H02) In the above embodiment, a configuration in which four-color developer is used as the copier U was illustrated, but the invention is not limited to this, and can be applied to, for example, a single-color image forming apparatus or a multi-color image forming apparatus with three or fewer colors or five or more colors. Therefore, the writing devices LHy~LHk can also be one, three or fewer, or five or more. (H03) In the above embodiment, an endless band-shaped intermediate transfer belt B was exemplified as an example of an image holding means, but the invention is not limited thereto. For example, it can also be applied to a cylindrical intermediate transfer drum, a photoreceptor drum, or a photoreceptor belt. Furthermore, it can also be applied to a configuration in which there is no intermediate transfer body and the image is recorded directly from the photoreceptor onto the recording paper S.

[0067] (H04) In the above embodiment, the writing devices LHy~LHk, which are detachable from and connected to the image forming apparatus by wiring, were given as examples, but the invention is not limited thereto. Any unit that is detachable from and connected to the image forming apparatus by wiring can also be used.

[0068] Figure 11 is an explanatory diagram of a modified example. (H05) In the above embodiment, an example of a separation means provided is one in which both the raised base plate 21 and the ferrite core 33 are provided, but the invention is not limited thereto. For example, it is also possible to provide an embodiment without the ferrite core 33. Depending on the orientation and curvature of the FFC 32, the length of the FFC 32, etc., it is also possible to provide an embodiment without the raised base plate 21 and with only the ferrite core 33. In addition, as shown in Figure 11, it is also possible to provide an embodiment in which the ferrite core 33 is placed in place of the raised base plate 21.

[0069] (Note) (((1))) A light-emitting means that outputs light, the light-emitting means being movably supported with respect to the main body of an image forming apparatus, A wiring means connected to the light-emitting means, wherein when the light-emitting means is attached to the main body of the image forming apparatus, the wiring means has excess length so as to fold back on one side in the direction of movement of the light-emitting means, A separating means is provided which is positioned at the folded portion of the wiring means and separates the folded portions of the wiring means from each other. An exposure apparatus characterized by being equipped with the following features. (((2))) A support means is provided to movably support the light-emitting means and is fixed to the main body of the image forming apparatus, The separation means formed on the support means, A passage portion is formed between the surface of the support means facing the light-emitting means and the back surface of the separation means facing the light-emitting means, through which the wiring means passes. The exposure apparatus according to (((1))), characterized by comprising the above. (((3))) The passing portion is positioned in the direction of movement at a location offset from the center in the width direction of the connection terminal between the wiring means and the light-emitting means. The exposure apparatus according to (((2))), characterized in that (((4))) The separation means is positioned in a location corresponding to the position of the connection terminal on the light-emitting means side of the wiring means with respect to the direction of movement. An exposure apparatus according to any one of (((1))) to (((3))), characterized by the above. (((5))) The separation means is composed of a ferrite core that removes noise. An exposure apparatus according to any one of (((1))) to (((4))), characterized by the above. (((6))) A second separating means is positioned in the folded portion and between the light-emitting means and the wiring means, which separates the wiring means from the light-emitting means, An exposure apparatus according to any one of (((1))) to (((5))), characterized by comprising: (((7))) The second separation means is arranged on the light-emitting means and extends in the direction of movement. The exposure apparatus according to (((6))), characterized in that (((8))) The second separation means is positioned at a location offset from the direction of movement with respect to the position of the connection terminal on the light-emitting means side of the wiring means. The exposure apparatus according to (((6))) or (((7))), characterized in that (((9))) A holding means for holding the wiring means extending from the connection terminal on the light-emitting means side of the wiring means, the holding means extending in a direction intersecting the direction of movement, An exposure apparatus according to any one of (((1))) to (((8))), characterized by comprising: (((10))) The wiring means is bent near the end of the retaining means opposite to the connection terminal such that the direction in which the wiring means extends is in the direction of movement. The exposure apparatus according to (((9))), characterized in that (((11))) The wiring means is bent in the width direction of the wiring means. The exposure apparatus according to (((10))), characterized in that (((12))) Image holding means, An exposure apparatus according to any one of (((1))) to (((11))) that exposes the image holding means to form a latent image, A developing means for developing the latent image of the image holding means, A transfer means for transferring the image developed by the developing means onto a medium, A fixing means for fixing the image transferred onto the medium, An image forming apparatus characterized by comprising the following:

[0070] According to the exposure apparatus described in (((1))), in an exposure apparatus having a deformable folded portion in the wiring means extending from the light-emitting means when the exposure apparatus is moved, noise in the wiring means can be suppressed compared to an exposure apparatus that does not have a separating member to separate the folded portion. According to the exposure apparatus described in (((2))), compared to the case where there is no passage section, it is possible to suppress contact between the portion of the wiring means that has passed through the passage section and other parts. According to the exposure apparatus described in (((3))), contact between wiring means near the passage can be suppressed compared to the case where the passage is positioned at a location corresponding to the widthwise center of the connection terminal. In the exposure apparatus described in (((4))), compared to the case where the separating means is positioned at a location offset from the position of the connection terminal, it is possible to suppress contact between the portion of the wiring means extending from the connection terminal and other parts. According to the exposure apparatus described in (((5))), noise in the wiring means can be removed and transmission quality can be improved compared to when the separating means is not composed of a ferrite core. According to the exposure apparatus described in (((6))), contact between the wiring means and the light-emitting means can be suppressed compared to the case where there is no second separating means. According to the exposure apparatus described in (((7))), interference between the second separating means and the wiring means when the light-emitting means moves can be suppressed compared to the case where the second separating means is not arranged on the light-emitting means. According to the exposure apparatus described in (((8))), interference between the second separating means and the wiring means extending from the connection terminal can be suppressed compared to the case where the second separating means is not shifted relative to the position of the connection terminal. According to the exposure apparatus described in (((9))), twisting of the wiring means extending from the connection terminal can be restricted compared to the case where there is no holding means. According to the exposure apparatus described in (((10))), twisting of the wiring means can be suppressed compared to the case where the wiring means is not bent near the end of the holding means. According to the exposure apparatus described in (((11))), the wiring means can be folded back more easily compared to the case where the wiring means cannot be folded in the width direction. According to the image forming apparatus described in (((12))), in an exposure apparatus having a deformable folded portion in the wiring means extending from the light-emitting means when the exposure apparatus moves, noise in the wiring means can be suppressed compared to a case where there is no separating member to separate the folded portion. [Explanation of Symbols]

[0071] 1...Means of light emission, 3c... Second means of causing discord, 11...support means, 21,33...separation means, 22...passing section, 31…Connection terminals, 32...wiring means, 32d...Folded part, 33... Ferrite core, 34...holding means, F... means of fixing, Gy, Gm, Gc, Gk...developing means, PRy, PRm, PRc, PRk...image holding means, S...medium, T1 + T2 + B... Transfer method, U...Image forming apparatus, U1... The main body of the image forming apparatus.

Claims

1. A light-emitting means that outputs light, the light-emitting means being movably supported with respect to the main body of an image forming apparatus, A wiring means connected to the light-emitting means, wherein when the light-emitting means is attached to the main body of the image forming apparatus, the wiring means has excess length so as to fold back on one side in the direction of movement of the light-emitting means, A separating means is provided which is positioned at the folded portion of the wiring means and separates the folded portions of the wiring means from each other. An exposure apparatus characterized by being equipped with the following features.

2. A support means is provided to movably support the light-emitting means and is fixed to the main body of the image forming apparatus, The separation means formed on the support means, A passage portion is formed between the surface of the support means facing the light-emitting means and the back surface of the separation means facing the light-emitting means, through which the wiring means passes. The exposure apparatus according to claim 1, characterized by comprising:

3. The passing portion is positioned in the direction of movement at a location offset from the center in the width direction of the connection terminal between the wiring means and the light-emitting means. The exposure apparatus according to feature 2.

4. The separation means is positioned in a location corresponding to the position of the connection terminal on the light-emitting means side of the wiring means with respect to the direction of movement. The exposure apparatus according to feature 1.

5. The separation means is composed of a ferrite core that removes noise. The exposure apparatus according to feature 1.

6. A second separating means is positioned at the folded portion and between the light-emitting means and the wiring means, which separates the wiring means from the light-emitting means. The exposure apparatus according to claim 1, characterized by comprising:

7. The second separation means is arranged on the light-emitting means and extends in the direction of movement. The exposure apparatus according to feature 6.

8. The second separation means is positioned at a location offset from the direction of movement with respect to the position of the connection terminal on the light-emitting means side of the wiring means. The exposure apparatus according to feature 6.

9. A holding means for holding the wiring means extending from the connection terminal on the light-emitting means side of the wiring means, the holding means extending in a direction intersecting the direction of movement, The exposure apparatus according to claim 1, characterized by comprising:

10. The wiring means is bent near the end of the retaining means opposite to the connection terminal such that the direction in which the wiring means extends is in the direction of movement. The exposure apparatus according to feature 9.

11. The wiring means is bent in the width direction of the wiring means. The exposure apparatus according to claim 10.

12. Image holding means, An exposure apparatus according to any one of claims 1 to 11, which exposes the image holding means to form a latent image, A developing means for developing the latent image of the image holding means, A transfer means for transferring the image developed by the developing means onto a medium, A fixing means for fixing the image transferred onto the medium, An image forming apparatus characterized by comprising the following:

Images