JP2012118256A - Image forming apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology to improve efficiency of wiring from a processing circuit to an irradiation body of an image forming apparatus.SOLUTION: A printer 10 is provided with a LED control circuit 40 comprising a LED control ASIC 74 to process image data to irradiation data and plural connectors 78 to output the irradiation data from the LED control ASIC 74, and LED arrays 44 extending in a right-and-left direction of the printer 10 and irradiating with light based on the irradiation data transmitted via FFCs 42 connected to the connectors 78. The LED control circuit 40 is arranged parallel to the right-and-left direction of the printer 10. The connectors 78M and 78K are arranged at a side opposite to the connectors 78Y and 78C in the right-and-left direction of the printer 10.

Description

  The present invention relates to a wiring technique in an apparatus including a circuit board.

  For example, Patent Document 1 discloses an image forming apparatus that outputs irradiation data subjected to image processing such as shading correction to an irradiation body via a harness connected to a connector. The irradiating body irradiates the photosensitive body with light based on the irradiation data, and the photosensitive body forms an image on a sheet or the like based on the light irradiated from the irradiating body.

JP 2006-76149 A

  In such an image forming apparatus, a processing circuit for performing image processing and a connector are often arranged on the same substrate. Therefore, for example, when a plurality of connectors for connecting harnesses corresponding to the illuminants of the respective colors are provided on the same substrate, there is a possibility that wiring between the processing circuit and the connectors becomes complicated. As described above, when the processing circuit and the plurality of connectors are arranged on the same substrate, there is a possibility that wiring from the processing circuit to the irradiation body (wiring and harness on the substrate) becomes complicated.

  In this specification, it aims at providing the technique which improves the efficiency of the wiring from a processing circuit to an irradiation body.

  An image forming apparatus disclosed in the present specification extends in a first direction with a processing circuit that processes image data into irradiation data, a substrate provided with a plurality of connectors from which the irradiation data is output from the processing circuit, A plurality of irradiating bodies that irradiate light scanned along the first direction based on the irradiation data transmitted through a harness connected to the connector, and the substrate includes the first direction. And one of the connectors is disposed on the opposite side of the first direction with respect to at least one other of the connectors.

  In the image forming apparatus, the plurality of irradiation bodies are arranged side by side in a second direction orthogonal to the first direction, and the substrate is arranged in parallel to the second direction. The irradiation body has a connection portion connected to the harness at one end in the first direction, and the first irradiation body arranged on one side of the first direction is connected to the connector. The second irradiating body connected to the first connector arranged on one side of the first direction and the connecting portion arranged on the other side of the first direction is the first direction of the connectors. It may be connected to the 2nd connector arranged on the other side.

  In the image forming apparatus, the first irradiation body and the second irradiation body may be arranged in the second direction so that the second irradiation body is disposed next to the first irradiation body. The first irradiating bodies may be alternately arranged adjacent to each other, and the connectors adjacent in the second direction may be arranged on the opposite side of the substrate in the first direction.

  In the above image forming apparatus, the connector and the processing circuit may be arranged such that the distances between the connector and the processing circuit are all equal.

  In the image forming apparatus, the processing circuit may be disposed at the center in the first direction of the substrate.

  In the image forming apparatus, the processing circuit may output the irradiation data generated using the image data output from the control circuit to the irradiation body.

  The image forming apparatus may include a plurality of photoconductors, and the irradiator may irradiate the photoconductors with light.

  Further, the image forming apparatus may include the four irradiation bodies that irradiate light to the four photosensitive bodies that form four-color images.

  Further, the image forming apparatus may include a control circuit that outputs the image data to the processing circuit. In this case, the processing circuit generates the irradiation data using the image data output from the control circuit, and sends the irradiation data to the irradiation body according to the order of the image data output from the control circuit. The irradiating body irradiates the irradiating body with light in a certain direction according to the order of the irradiation data output from the processing circuit, and the control circuit It is preferable to change the order of the image data for irradiating the first irradiation body and the image data for irradiating the second irradiation body.

  In the image forming apparatus, the image data includes irradiation body information indicating the transmitted irradiation body, and the control circuit changes the order of the image data based on the irradiation body information. May be.

  In the image forming apparatus disclosed in this specification, by disposing the connectors on both sides in the first direction of the substrate, the distance between the connectors on the substrate is made longer than when all the connectors are disposed on one side in the first direction. The wiring between the processing circuit and the connector can be efficiently arranged on the substrate.

Side sectional view showing a schematic configuration of the printer 10 according to the present embodiment. The block diagram which shows schematic structure of the system in this embodiment The figure which shows schematic structure of LED control board 40 The enlarged view which shows schematic structure of 44 A of irradiation surfaces of LED array 44 Flow chart showing transmission processing of main ASIC 62 Side sectional view which shows schematic structure of the printer 10 in another embodiment.

<Embodiment>
This embodiment will be described with reference to FIGS.

1. FIG. 1 is a sectional view of a printer 10 as an example of an image forming apparatus according to the present invention. The printer 10 is a direct transfer tandem type color laser printer provided with four photosensitive drums (an example of a photosensitive member) 46 corresponding to the respective colors of black, cyan, magenta, and yellow. In the following description, the right side in FIG. 1 is the front side of the printer 10 and the left side in FIG. 1 is orthogonal to the front-rear direction (an example of the second direction) of the printer 10, and the left-right direction (an example of the first direction) of the printer 10 is the right side of the printer 10. 1 is defined as the left side of the printer 10.

  The printer 10 includes a paper feed tray 14 that is attached to the lower portion of the main body casing 12 so as to be able to be pulled forward. The sheet feeding tray 14 has a thin dish shape, and a sheet material for forming an image can be stacked inside the sheet feeding tray 14. A pressing plate (not shown) that can be tilted to lift the front end side of the sheet material is provided on the bottom surface of the paper feed tray 14.

  When the sheet material is set on the paper feed tray 14 by the user and stored in the main body casing 12, the sheet material is pressed against the pickup roller 20 by the upward movement of the pressing plate disposed in the paper feed tray 14. The sheet material is conveyed to the conveyance roller 22 and the registration roller 24 by the rotation of the pickup roller 20. The sheet material is conveyed to the image forming unit 30 after skew correction is performed by the registration roller 24.

  The image forming unit 30 includes a belt unit 26 and an image forming unit 28. The belt unit 26 includes a pair of support rollers 32 and 34 and a belt 36. The belt 36 is provided between the support rollers 32 and 34 and has a ring shape. The support rollers 32 and 34 are arranged so that the axial direction thereof is parallel to the left-right direction of the printer 10. The support rollers 32 and 34 are rotated counterclockwise in FIG. 1 by a motor (not shown), and accordingly, the belt 36 and the sheet material conveyed onto the belt 36 are moved.

  Inside the belt 36, four transfer rollers 38 arranged to face each photosensitive drum 46, which will be described later, are provided at regular intervals in the front-rear direction, and the four transfer rollers 38 are connected to the corresponding photosensitive drum 46. The belt 16 is interposed between the two. The transfer roller 18 is driven to rotate counterclockwise in FIG. 1 by the belt 16 that rotates counterclockwise, and a transfer bias is applied during transfer using the corresponding photosensitive drum 46.

  An image forming unit 28 is provided on the upper side of the belt unit 26. The image forming unit 28 includes an LED control board (an example of a board) 40, an LED array (an example of an irradiation body) 44, a photosensitive drum 46, and a developing cartridge 48. The image forming unit 28 includes four photosensitive drums 46 corresponding to four color toners, four developing cartridges 48, and four LED arrays 44. The photosensitive drums 46 are arranged so that the axial direction thereof is parallel to the horizontal direction of the printer 10 and are arranged side by side in the front-rear direction. The developing cartridge 48 is filled with toner of each color supplied to the corresponding photosensitive drum 46.

  A corresponding LED array 44 is disposed above each photosensitive drum 46. As shown in FIG. 3, the LED array 44 has a bar shape, and its axial direction X is arranged in parallel with the left-right direction of the printer 10 and is arranged side by side in the front-rear direction. Here, “parallel” means that the axial direction X of the target LED array 44 is within the reference angle range with respect to the horizontal direction of the printer 10 as a reference. The LED array 44 is provided with a connecting portion 54 for connecting to an FFC (an example of a harness) 42 at one end in the axial direction X. The FFC 42 may be integrally formed with the LED array 44 or may be connected to the LED array 44 at the connection portion 54.

  As shown in FIG. 1, the LED array 44 has an irradiation surface 44 </ b> A for irradiating light, and is arranged so that the irradiation surface 44 </ b> A faces the photosensitive drum 46. That is, the LED array 44 is disposed so as to irradiate the photosensitive drum 46 with light from the irradiation surface 44A. FIG. 4 shows an enlarged view of the LED array 44 as viewed from the irradiation surface 44A. A plurality of LED elements 56 are arranged in the axial direction X on the irradiation surface 44 </ b> A of the LED array 44. More specifically, the LED elements 54 are arranged in two rows in the axial direction, and are not arranged in the direction perpendicular to the axial direction X at the center of the axial direction X, but end in the axial direction X In the part, they are overlapped in the direction orthogonal to the axial direction X. The LED array 44 irradiates light by causing the LED elements 56 arranged in the axial direction X to scan along the axial direction X. That is, the axial direction X (that is, the horizontal direction of the printer 10) is the scanning direction of the LED array 44.

  The LED array 44 is connected to the LED control board 40 disposed above by an FFC 42. The LED control board 40 has a planar shape, is disposed in parallel with the front-rear direction and the left-right direction of the printer 10, and is disposed to face the LED array 44 disposed side by side in the front-rear direction. The LED array 44 is turned on based on the irradiation data transmitted from the LED control board 40 via the FFC 42 and irradiates the photosensitive drum 46 with light. Thereafter, toner is supplied from the developing cartridge 48 to the photosensitive drum 46. As a result, a toner image corresponding to the image to be formed on the surface of the photosensitive drum 46 is formed.

  When the sheet material moving together with the belt 36 passes through the transfer position between the photosensitive drum 46 and the transfer roller 38, the toner image formed on the surface of the photosensitive drum 46 is transferred to the transfer bias applied to the transfer roller 38. Thus, the image is transferred onto the sheet material 16 and an image is formed on the sheet material 16. As the belt 36 moves, images of each color are continuously formed on the sheet material 16. The image formed on the sheet material 16 is sent to the fixing device 50 to be fixed, and then the sheet material is conveyed by the conveyance roller 52 to a paper discharge tray 58 provided on the upper portion of the main body casing 12.

(Configuration of LED array and LED control board)
FIG. 3 is a top view of the inside of the printer 10 as viewed from above. An LED array 44 is disposed above the inside of the printer 10, and an LED control board 40 is disposed above the LED array 44. The LED arrays 44Y, 44M, 44C, and 44K are arranged in this order from the front to the rear of the printer 10, and the LED array 44Y and 44C has the connection portion 54 arranged on the right side (first irradiation body). Example). Further, the LED arrays 44M and 44K have the connection portion 54 disposed on the left side (an example of a second irradiation body). That is, in the printer 10, the LED array 44 in which the connection portion 54 is arranged on the right side and the LED array 44 in which the connection portion 54 is arranged on the left side are alternately arranged in the front-rear direction of the printer 10.

  On the LED control board 40, an LED control ASIC (an integrated circuit for LED control: an example of a processing circuit) 74, a connector 78, and the like are mounted on the lower surface 40A facing the LED array 44. That is, the lower surface 40A of the LED control board 40 is a mounting surface of the LED control board 40 on which electronic components such as the LED control ASIC 74 and the connector 78 are mounted. In the following description, the LED control board 40 and the LED array 44 are shown using the front-rear direction and the left-right direction of the LED control board 40 and the LED array 44 mounted on the printer 10.

  The LED control ASIC 74 is arranged at the center of the LED control board 40, that is, at the center of the LED control board 40 in the front-rear direction and the left-right direction. Here, “disposed in the center” means that the LED control ASIC 74 is arranged at a position overlapping with the center line that bisects the area of the LED control board 40 in each direction of the LED control board 40. The connectors 78Y, 78M, 78C, and 78K are arranged in this order from the front to the rear of the printer 10 on the LED control board 40 so as to correspond to the LED arrays 44Y, 44M, 44C, and 44K. The connectors 78Y and 78C are disposed on the right side of the LED control board 40 (an example of a first connector), and the connectors 78M and 78K are disposed on the left side of the LED control board 40 (an example of a second connector). That is, the connectors 78Y, 78M, 78C, and 78K that are adjacent to each other in the front-rear direction in the LED control board 40 are arranged on the opposite side of the LED control board 40 in the left-right direction. That is, the connectors 78Y, 78M, 78C, 78K are alternately arranged in the front-rear direction on the LED control board 40. “Arranged on the opposite side in the left-right direction” means that the LED control board 40 is arranged on the opposite side in the left-right direction with respect to the center line in the left-right direction.

  The connectors 78Y and 78C are connected to the LED arrays 44Y and 44C, respectively, in which the connection portion 54 is disposed on the right side. Therefore, the FFC 42 that connects the LED arrays 44Y and 44C and the connectors 78Y and 78C is routed to the right side of the printer 10. The connectors 78M and 78K are respectively connected to the LED arrays 44M and 44K in which the connection portion 54 is disposed on the left side. Therefore, the FFC 42 that connects the LED arrays 44M and 44K and the connectors 78M and 78K is routed to the left side of the printer 10.

  In the LED control board 40, each connector 78 is arranged so that the physical distance D between the LED control ASIC 74 and each connector 78 is equal. In the LED control board 40, the wiring distance of the wiring pattern 76 that connects the LED control ASIC 74 and each connector 78 is set equal.

2. FIG. 2 is a block diagram illustrating a system configuration example of the printer 10. The system of the printer 10 includes a main board 60 and an LED control board 40. The main board 60 includes a main ASIC (application-specific integrated circuit: an example of a control circuit) 62, a ROM 64, a RAM 68, a network interface 70, and the like.
The ROM 64 stores a plurality of programs, and the main ASIC 62 controls the printer 10 according to the program read from the ROM 64 via the bus 66 and also controls communication with a personal computer (hereinafter referred to as “PC”) 100 or the like. To do.

  The network interface 70 is connected to the communication line 102 in the intranet by, for example, a LAN (Local Area Network). A PC 100 is connected to the communication line 102, and the printer 10 can receive print data including image data via the network interface 70. When the main ASIC 62 receives the print data via the wiring 72, the main ASIC 62 temporarily stores the image data in the RAM 68 via the bus 66, and when the image based on the image data is formed on the sheet material, the image data is displayed on the LED. Output to the control ASIC 74.

  The image data includes a plurality of unit image data corresponding to the plurality of LED elements 56 included in the LED array 44. When outputting the image data to the LED control ASIC 74, the main ASIC 62 reads out the unit image data from the RAM 68 in a predetermined order, and outputs the image data arranged in this order to the LED control ASIC 74.

  The LED control ASIC 74 generates irradiation data using image data output from the main ASIC 62. The LED control ASIC 74 converts the unit image data into unit irradiation data in the order in which the unit image data is output from the main ASIC 62, and generates irradiation data including a plurality of unit irradiation data.

  The LED control ASIC 74 is connected to each connector 78 via a wiring pattern 76. The irradiation data (and image data before generating the irradiation data) includes color information (an example of irradiation body information) Z indicating which color the data is, and the LED control ASIC 74 uses this color. Based on the information Z, the irradiation data corresponding to each color is output to the corresponding connector 78. Irradiation data output to the connector 78 is transmitted to the LED array 44 via the FFC 42 connected to the connector 78. That is, the color information Z included in the irradiation data or the like is also information indicating the LED array 44 to be transmitted. In the LED array 44, the LED elements 56 are turned on and irradiated with light from the side where the connection portion 54 is provided to the opposite side in accordance with the order of unit irradiation data transmitted from the LED control ASIC 74.

3. Image Data Transmission Processing In the printer 10 of the present embodiment, LED arrays 44Y and 44C in which the connection unit 54 is arranged on the right side and LED arrays 44M and 44K in which the connection unit 54 is arranged on the left side are mixed. In this case, unlike the case where all of the connecting portions 54 are arranged on the constant side, the plurality of LED elements 56 included in the LED array 44 may start to be lit from different sides in the left-right direction of the printer 10. Therefore, when the main ASIC 62 reads out the unit image data from the RAM 68, the main ASIC 62 performs transmission processing to reverse the order of reading out the unit image data according to the LED array 44 to which the image data (irradiation data generated from the image data) is transmitted. There is a need to do.

  The process of the main ASIC 62 in the image data transmission process will be described with reference to FIG. This process is repeatedly executed by the main ASIC 62 after the power of the printer 10 is turned on by the user. FIG. 5 shows a flowchart of processing executed by the main ASIC 62. In the following description, it is assumed that image data suitable for the LED arrays 44Y and 44C (that is, image data for starting the LED element 56 to start lighting from the right side of the printer 10) is input from the PC 100.

  In the image data transmission process, the main ASIC 62 waits for image data to be received from the PC 100 (S2: NO), and when print data is received (S2: YES), the image included in the print data The data is compressed, and the compressed image data is temporarily stored in the RAM 68 (S4).

  Next, the main ASIC 62 confirms the color information Z included in the image data (S6). When the color information Z indicates Y / C color (S6: NO), the main ASIC 62 reads the image data stored in the RAM 68 in the same order as stored in the RAM 68, and horizontally inverts the image data input from the PC 100. (S8). On the other hand, when the color information Z indicates M / K color (S6: YES), the image data stored in the RAM 68 is read out in the reverse order of storing it in the RAM 68, and the image data input from the PC 100 is reversed horizontally ( S10).

  Next, the main ASIC 62 transmits the compressed data read from the RAM 68 to the LED control ASIC 74 (S12). The main ASIC 62 continues the transmission until all the compressed data is transmitted to the LED control ASIC 74 (S14: NO), and ends the process when all the compressed data is transmitted to the LED control ASIC 74 (S14: YES). To do. As a result, even when the plurality of LED elements 56 included in the LED array 44 start to be lit from different sides of the printer 10 in the left-right direction, the image received from the PC 100 or the like is read out as in S8 and S10. Data can be reproduced on sheet material.

4). Effects of the present embodiment (1) In the printer 10 of the present embodiment, the connectors 78 are disposed on both sides of the LED control board 40 in the left-right direction. This makes it possible to increase the distance between the connectors 78 on the LED control board 40 as compared with the case where all the connectors 78 are arranged on one side of the LED control board 40 in the left-right direction, and the LED control ASIC 74 on the LED control board 40 The wiring pattern 78 between the connectors 78 can be set efficiently.

(2) In the printer 10 of this embodiment, the LED arrays 44Y and 44C in which the connection portion 54 is disposed on the right side and the LED arrays 44M and 44K in which the connection portion 54 is disposed on the left side are mixed, and the LED control board. In FIG. 40, the connectors 78 are disposed on both sides of the LED control board 40 in the left-right direction correspondingly. Accordingly, the length of the FFC 42 that connects between the connector 78 and the LED array 44 can be shortened as compared with the case where all the connectors 78 are arranged on one side of the LED control board 40 in the left-right direction. Accordingly, it is possible to suppress the occurrence of a problem caused by the length of the FFC 42, for example, a problem that noise is generated in image data transmitted via the FFC.

(3) In the printer 10 of this embodiment, the LED arrays 44Y and 44C in which the connection portions are arranged on the right side and the LED arrays 44M and 44K in which the connection portions 54 are arranged on the left side are alternately arranged in the front-rear direction of the printer 10. In the LED control board 40, the connectors 78 adjacent to each other in the front-rear direction of the printer 10 are arranged on the opposite side of the LED control board 40 in the left-right direction. Accordingly, the distance between the connectors 78 on the LED control board 40 can be increased compared to the case where the connectors 78 adjacent to each other in the front-rear direction of the printer 10 are arranged on the same side in the left-right direction of the LED control board 40. Interference between irradiation data output to 78 is suppressed.

(4) In the LED control board 40, between the connector 78 and the LED control ASIC 74 in the LED control board 40, the magnitude relation of the signal level of the irradiation data output from the LED control ASIC 74 to each connector 78 is maintained equally. The wiring distance (that is, wiring resistance) of the wiring pattern 76 needs to be set equal. Therefore, when the physical distance D between the connector 78 and the LED control ASIC 74 is not equal, the connector 78 having the longest physical distance D between the LED control ASIC 74 and the LED control ASIC 74 is used as a reference. The wiring distance of the wiring pattern 76 is set. Therefore, in the connectors 78 other than the connector 78 having the longest physical distance D between the LED control ASIC 74 and the physical distance D between the connector 78 and the LED control ASIC 74, the connector 78 and the LED control ASIC 74 are not connected. It is necessary to lengthen the wiring distance of the wiring pattern 76 between them, and problems due to the long wiring distance, for example, noise in the irradiation data output to the connector 78 occur.

  In the printer 10 of the present embodiment, since the physical distance D between the connector 78 and the LED control ASIC 74 on the LED control board 40 is all equal, the physical distance between the connector 78 and the LED control ASIC 74 is set. Compared to the target distance D, it is not necessary to increase the wiring distance of the wiring pattern 76 between the connector 78 and the LED control ASIC 74, and the occurrence of the above-described problem due to the increased wiring distance can be suppressed.

(5) In the printer 10 of this embodiment, the LED control ASIC 74 is disposed at the center in the front-rear direction and the left-right direction of the LED control board 40, so the connectors 78 are disposed on both sides of the LED control board 40 in the left-right direction. And the LED control ASIC 74 are easily arranged at equal distances.

(6) In the printer 10 of this embodiment, in the main ASIC 62, the image data is obtained by the LED arrays 44Y and 44C in which the connection portion 54 is disposed on the right side and the LED arrays 44M and 44K in which the connection portion 54 is disposed on the left side. The order of the single image data included in the is reversed. This makes it possible to align the direction of irradiation of the plurality of LED elements 56 included in the LED array 44 with respect to the printer 10 regardless of on which side the connecting portion 54 is arranged. An image based on the input image data can be formed on a sheet material or the like.

(7) In the printer 10 of this embodiment, the main ASIC 62 uses the color information Z included in the image data to reverse the order of the single image data included in the image data. Thus, the orientation of the image formed on the sheet material using the LED array 44 in which the connection portion 54 is arranged on the right side in the horizontal direction of the printer 10 and the LED array 44 in which the connection portion 54 is arranged on the left side. The orientation of the image formed on the sheet material in the left-right direction of the printer 10 can be aligned, and the image data received from the PC 100 or the like can be reproduced on the sheet material.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and the drawings, and for example, the following various aspects are also included in the technical scope of the present invention.
(1) The printer 10 of the above-described embodiment may be a multi-function image forming apparatus having a scanner function, a copy function, a facsimile function, etc. as long as it has a printer function.

(2) In the above embodiment, the LED control board 40 has been described using an example in which the LED control board 40 is arranged in parallel in the front-rear direction and the left-right direction of the printer 10, but the present invention is not limited to this. For example, as shown in FIG. 6, the LED control board 40 may be arranged parallel to the left-right direction of the printer 10 and perpendicular to the front-rear direction. Even in this case, by arranging the connectors 78 on both sides of the LED control board 40 in the left-right direction, the wiring pattern 76 on the LED control board 40 can be set efficiently, and the connector 78 is associated with the LED array 44. Is disposed on both sides of the LED control board 40 in the left-right direction, so that the length of the FFC 42 can be shortened.

(3) In the above embodiment, the description has been given using the example in which the connectors 78Y and 78C are arranged on the right side of the LED control board 40 and the connectors 78M and 78K are arranged on the left side of the LED control board 40. The present invention is not limited to this. Even if any one of the connectors 78 is disposed on the opposite side of the LED control board 40 in the left-right direction with respect to the other connectors 78, the wiring pattern 76 on the LED control board 40 can be set efficiently.

(4) In the above embodiment, the LED arrays 44Y and 44C in which the connection portions 54 are arranged on the right side and the LED arrays 44M and 44K in which the connection portions 54 are arranged on the left side are alternately arranged in the front-rear direction of the printer 10. Although the description has been made using the example in which the arrangement is made, the present invention is not limited to this. Even when any one of the LED arrays 44 is disposed on the opposite side of the other LED array 44, the corresponding connector 78 is connected to the other connector 78 on the left and right sides of the LED control board 40. The length of FFC42 can be shortened by arrange | positioning on the direction reverse side.

(5) In the above embodiment, the LED control ASIC 74 has been described using an example in which the LED control board 40 is arranged at the center in the front-rear direction and the left-right direction, but the present invention is not limited to this. In the above embodiment, the description has been given using the example of the printer 10 that forms images of four colors. However, the number of images to be formed is plural, and the LED control board 40 corresponds to the LED array 44 of each color. If a plurality of connectors 78 are provided, the number of images to be formed is not limited to this.

(6) In the above embodiment, the LED array 44 in which the connection portion 54 is disposed on the right side and the orientation of the image formed on the sheet material in the left-right direction of the printer 10 and the LED in which the connection portion 54 is disposed on the left side. An explanation will be given using an example in which the order of single image data included in image data is reversed in the main ASIC 62 when aligning the image formed on the sheet material using the array 44 in the horizontal direction of the printer 10. Although done, the present invention is not limited to this. For example, when the irradiation data is generated by the LED control ASIC 74, the order of the single irradiation data may be reversed in the LED control ASIC 74.

(7) The irradiation direction may be changed by the LED array 44 itself. For example, in the LED array 44 in which the connection portion 54 is arranged on the right side, the LED element 56 is lit from the connection portion 54 side, and in the LED array 44 in which the connection portion 54 is arranged on the left side, the LED element 56 is connected to the connection portion 54. By illuminating from the opposite side, the irradiation direction of the LED element 56 to the printer 10 may be aligned.

(8) In the above embodiment, the LED control ASIC 74 has been described using an example in which irradiation data is generated using image data output from the main ASIC 62, but the present invention is not limited to this. For example, the printer 10 may be provided with a USB connection unit, and the LED control ASIC 74 may be connected to the USB connection unit. When the USB is connected to the USB connection unit, the LED control ASIC 74 obtains image data directly from the USB, and generates irradiation data using the obtained image data. In this case, since the order of the single image data included in the image data cannot be reversed in the main ASIC 62, the printer 10 of the image formed on the sheet material using the LED array 44 in which the connection portion 54 is arranged on the right side. When the orientation in the left-right direction is aligned with the orientation in the left-right direction of the printer 10 of the image formed on the sheet material using the LED array 44 in which the connection portion 54 is arranged on the left side, the LED control ASIC 74 or It is necessary to reverse the order of the single irradiation data in the LED array 44 itself. Note that the external storage device is not limited to a USB memory as long as it can store image data, and is not limited to a USB connection unit as long as it is a connection unit to which an external storage device can be connected.

(9) In the above embodiment, the example in which the LED array 44 irradiates the photosensitive drum 46 with light has been described, but the present invention is not limited to this. For example, when photosensitive toner is attached to the sheet material itself, the LED array 44 may irradiate the sheet material with light. In the sheet material that has been irradiated with light, for example, only the toner that has been irradiated with light is cured, and the toner that has not been irradiated with light in the subsequent processing is peeled off, whereby an image is formed.

10: Printer, 40: LED control board, 42: FFC, 44: LED array, 46: Photosensitive drum, 54: Connection part, 56: LED element, 60: Main board, 62: Main ASIC, 74: LED control ASIC, 76: Wiring pattern, 78: Connector

Claims (10)

A processing circuit for processing image data into irradiation data, and a substrate provided with a plurality of connectors from which the irradiation data is output;
A plurality of irradiating bodies that irradiate light that is scanned along the first direction based on the irradiation data that extends in a first direction and is transmitted through a harness connected to the connector;
The image forming apparatus, wherein the substrate is disposed in parallel with the first direction, and one of the connectors is disposed on the opposite side of the first direction with respect to at least one other of the connectors. The image forming apparatus according to claim 1,
The plurality of illuminators are arranged side by side in a second direction orthogonal to the first direction, and the substrate is arranged in parallel to the second direction,
The irradiator has a connection portion connected to the harness at one end in the first direction,
The first irradiation body in which the connection portion is arranged on one side in the first direction is connected to a first connector arranged on one side in the first direction among the connectors,
The image forming apparatus in which the second irradiator in which the connection portion is disposed on the other side in the first direction is connected to a second connector disposed on the other side in the first direction among the connectors. The image forming apparatus according to claim 2,
In the second direction, the first irradiator and the second irradiator are arranged next to the first irradiator in the second direction, and the first irradiator is arranged next to the second irradiator. Are arranged alternately as
The connector adjacent to the second direction is an image forming apparatus disposed on the opposite side of the substrate in the first direction. An image forming apparatus according to any one of claims 1 to 3,
The image forming apparatus in which the connector and the processing circuit are all arranged at equal distances between the connector and the processing circuit. The image forming apparatus according to claim 4,
The image forming apparatus, wherein the processing circuit is disposed at a center in the first direction of the substrate. An image forming apparatus according to any one of claims 1 to 5,
The image forming apparatus that outputs the irradiation data generated using the image data output from the control circuit to the irradiation body. An image forming apparatus according to any one of claims 1 to 6,
It has multiple photoconductors,
The irradiation body is an image forming apparatus that irradiates light to the photosensitive body. The image forming apparatus according to claim 7,
An image forming apparatus including four irradiating bodies that irradiate light to four photosensitive bodies that form four-color images. The image forming apparatus according to claim 2,
A control circuit for outputting the image data to the processing circuit;
The processing circuit generates the irradiation data using the image data output from the control circuit, and outputs the irradiation data to the irradiation body according to the order of the image data output from the control circuit. And
The irradiating body irradiates the illuminating body with light in a certain direction with respect to the connection portion according to the order of the irradiation data output from the processing circuit,
The control circuit is an image forming apparatus in which the order is changed between the image data for irradiating the first irradiation body and the image data for irradiating the second irradiation body. The image forming apparatus according to claim 9,
The image data includes irradiation body information indicating the irradiation body to be transmitted,
The control circuit is an image forming apparatus that changes the order of the image data based on the irradiation body information.

Images