JP2018148365A - Image reader - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve maintenance for a control substrate of an image reader.SOLUTION: An image reader comprises: a housing having on an upper surface thereof a document placing table on which a document is placed; image reading means for reading a document placed on the document placing table; moving means that moves the image reading means in a sub-scanning direction orthogonal to a main scanning direction of the image reading means; a control substrate on which control means is mounted for controlling a reading operation performed by the image reading means; and connection means for connecting the control substrate and the image reading means. The housing has a recessed part formed toward the interior of the housing from its bottom side. The control substrate is disposed in the recessed part. A movable portion, including a portion movable as the image reading means moves, of the connection means is disposed in an accommodating space between a side wall on the inside of the housing and a side wall, on the inside of the housing, of the recessed part. As the image reading means is moved by the moving means, the movable portion slides in the accommodating space.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an image reading apparatus for reading an image of a document made of, for example, a sheet material such as paper or a booklet.

  2. Description of the Related Art Conventionally, a flatbed scanner that scans a carriage as an image reading unit along an original surface and reads an image of an original on a mounting table on the carriage is known (see, for example, Patent Document 1). In such a conventional flatbed scanner, a control board connected to the image reading unit via a connection cable is provided in the flatbed scanner or in the main body of the image forming apparatus on which the flatbed scanner is mounted. .

JP 2016-189240 A

In the image reading apparatus disclosed in the above-mentioned Patent Document 1, when maintenance of the control board is performed, it is necessary to open a housing and a mounting table of the image reading apparatus and work inside the image reading apparatus. For this reason, dust or dust may enter the image reading apparatus, and white spots or black spots may appear in the read image.
Further, when the connection cable is moved in the main body, it is necessary to open the housing and the mounting table even when the connection cable is bent in an unintended direction.

In view of the above, an image reading apparatus according to the present invention is provided.
A housing having a document table on the top surface on which a document is placed;
Image reading means for reading a document placed on the document placing table;
Moving means for moving the image reading means in a sub-scanning direction perpendicular to the main scanning direction of the image reading means;
A control board on which a control means for controlling a reading operation by the image reading means is mounted;
A connection means for connecting the control board and the image reading means;
The case has a recess formed from the bottom side toward the inside of the case, and the control board is disposed in the recess.
A movable portion including a portion that moves as the image reading unit moves of the connecting unit is disposed in an accommodation space between a side wall inside the housing and a side wall inside the housing of the recess, and the moving unit The image reading means slides in the housing space as the image reading means moves.

  According to the present invention, it is possible to perform maintenance of the control board without opening the housing and mounting table of the image reading apparatus, and it is possible to perform stable sliding by the connecting means.

1 is a perspective view of an image reading apparatus according to an embodiment of the present invention. 1 is a top view of an image reading apparatus according to an embodiment of the present invention. 1 is a bottom view of an image reading apparatus according to an embodiment of the present invention. 1 is a rear view of an image reading apparatus according to an embodiment of the present invention. 1 is a perspective view of a main part of an image reading apparatus according to an embodiment of the present invention. 1 is an enlarged view of a main part of an image reading apparatus according to an embodiment of the present invention. FIG. 6 is another perspective view of the main part of the image reading apparatus according to the embodiment of the present invention. 1 is a cross-sectional view of an image reading apparatus according to an embodiment of the present invention. FIG. 6 is another cross-sectional view of an image reading apparatus according to an embodiment of the present invention.

(First embodiment)
Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view of an embodiment of a flat bed scanner as an example of an image reading apparatus of the present invention.

  As shown in FIG. 1, the flatbed scanner 1 of the present embodiment places an original D on an original platen glass (original platen) 11 provided on the upper portion of a lower housing 60, and the original D is placed by an opening / closing lid 20. A carriage 40 (including an image reading sensor 41 such as a CCD (Charge Coupled Device) or CIS (Contact Image Sensor) as an example of an image reading means) provided in the main body of the flat bed scanner 1 in the direction of the arrow y. This is an apparatus that scans and reads an image of a document D.

  And in this embodiment, the opening-and-closing lid | cover 20 which can be opened and closed with respect to the main-body part of the flatbed scanner 1 is arrange | positioned so that rotation in a longitudinal direction (on yz plane) is possible.

  The opening / closing lid 20 is a member that covers the document table glass 11 and the document D placed on the document table glass 11.

  FIG. 2 is a top view of the flat bed scanner 1 according to the present embodiment. The flatbed scanner 1 is provided with an operation unit 50 adjacent to the opening / closing lid 20 at the end opposite to the hinge in the rotation operation of the opening / closing lid 20 (radially distal end side in rotation).

  The operation unit 50 includes a scan start button 51, a scan stop button 52, and a power button 53. When the scan start button 51 is pressed, the carriage 40 moves in the sub-scanning direction (y direction) and the image is displayed. When the reading sensor scans in the main scanning direction, image reading of the document D on the document table 11 is started. As for the start of scanning, an instruction to start scanning may be transmitted at the same time as the scan setting is transmitted from the application side operating on the information processing apparatus connected to the flatbed scanner 1, or they may be combined. That is, when the application of the information processing apparatus detects that the scan start button 51 is pressed in the flat bed scanner 1, the scan setting and the scan start instruction are transmitted again from the information processing apparatus to the flat bed scanner 1, and the scan is performed. You may implement. Furthermore, the information processing apparatus connected to the flatbed scanner 1 may be located at a remote place via a network, and the connection method is not limited to wired communication, and may be performed by wireless communication.

  FIG. 3 is a bottom view of the flat bed scanner 1 according to the present embodiment. 3A shows a state where the substrate cover 61 is attached to the flat bed scanner 1, and FIG. 3B shows a state where the substrate cover 61 is removed from the flat bed scanner 1. FIG.

  As shown in FIG. 3A, a substrate cover 61 formed separately from the lower housing 60 is provided on the bottom surface of the flat bed scanner 1. The substrate cover 61 is provided at the center of the lower casing 60 and is fixed to the lower casing 60 with screws. A recess 62 formed toward the inner side of the lower housing 60 is provided at a position where the substrate cover 61 is provided in the lower housing 60 of FIG. A substrate 63 is disposed. In the present embodiment, the recess 62 is provided integrally from the end of the lower housing 60 to the other end in the scanning direction (y direction) of the carriage 40.

  The control board 63 is connected to the image reading sensor 41 by a connection cable (connection means) 64. The connection cable 64 is constituted by a flexible flat cable (FFC) or the like, and a scan start signal based on the pressing of the scan start button 51 is transmitted to a control unit (control means) 68 mounted on the control board 63. . When the scan start signal is transmitted to the control unit 68, a control signal is transmitted from the control unit 68 to the image reading sensor 41 via the connection cable 64 based on the set scan setting. By transmitting a control signal to the driving means, an image reading operation of the document D is executed. The control signal for the driving means may be sent via the connection cable 64. However, in the present embodiment, since the driving means is provided separately from the carriage 40, the control signal is sent using another cable. The control unit 68 performs overall drive control of the image reading sensor 41 and the carriage 40 in addition to the start of scanning, and is configured by a CPU or ASIC as an example.

  The fixing of the control board 63 to the recess 62 is performed by screws. The control board 63 may be fastened together with screws that attach the board cover 61 to the lower housing 60. However, the substrate cover 61 itself may be fixed by fitting with a claw portion or the like without using a fixing member such as a screw, or may be fixed in combination. The connection cable 64 has one end connected to the image reading sensor 41 and the other end connected to a connector 63 a provided on the control board 63. The routing of the connection cable 64 from the image reading sensor 41 to the control board 63 will be described later.

  A carriage lock member 65 for restricting movement of the carriage 40 in the scanning direction (y direction) is provided on the right side of the sheet of FIG. The carriage lock member 65 is slidable with respect to the lower housing 60, and the movement of the carriage 40 is regulated by sliding the carriage lock member 65 to a fixed position. Although details will be described later, when the movement of the carriage 40 is restricted, for example, when the flatbed scanner 1 is moved, the carriage 40 moves in a dark manner inside the housing 100, and an unnecessary load is applied. Can be prevented.

  FIG. 4 is a rear view of the flatbed scanner 1 according to the present embodiment, and shows that a cable connection space 70 is formed. As shown in FIG. 4, a power cable 71 for supplying power to the power supply board is connected to the power supply board via a connector, and power is supplied into the apparatus. In addition, a communication cable 72 for connecting an information processing apparatus that transmits a read image of the document D acquired by the flatbed scanner 1 and receives a reading setting is also connected to the control board 63 via a connector. A USB cable or the like is used as the communication cable 72. In the present embodiment, the control board 63 and the power supply board are configured as a common board.

  FIG. 5 is a perspective view of a main part of the image reading apparatus according to the embodiment of the present invention. As shown in this figure, a protrusion 81 corresponding to the recess 62 on the bottom surface is formed inside the lower housing 60. However, in the following description, the protruding portion 81 is a portion corresponding to the concave portion 62 on the bottom surface, and therefore may be described as the concave portion 62. Further, the protruding portion 81 has a wall portion 81 a formed substantially perpendicular to the document placing table 11 so that the connection cable 64 can be guided when the carriage 40 moves in the sub-scanning direction.

  A cable housing space 82 is provided between the wall portion 81a and one side wall of the lower housing 60. As the carriage 40 is scanned in the y direction, the movable portion 64a of the connection cable 64 is cable-accommodated. The bottom surface of the space 82 is slid. That is, when the carriage 40 is located on one end side, the connection cable 64 is located along one side wall of the lower housing 60, and when the carriage 40 is located on the other end side, the wall portion It is located along 81a.

In the present embodiment, one end in the x direction of the cable housing space 82 is formed by the wall portion 81a, and the cable housing space 82 is formed by the wall portion 81a formed by the recess 62. I can say that. The wall portion 81a does not necessarily exist uniformly in the y direction, but the wall portion 81a is formed so as to form the cable housing space 82 at least over the movable range of the movable portion 64a of the connection cable 64. Preferably it is present.

  In the present embodiment, as shown in FIGS. 3 and 5, the lower housing 60 is provided with a recess 62, and a corresponding protrusion 81 is provided on the inner surface of the lower housing 60. In view of the purpose of accommodating the control board 63 therein, the recess 62 may be formed in a size that allows the control board 63 to be accommodated therein. In the present embodiment, the y direction in the lower housing 60 is provided. It is provided only in the central part.

  On the other hand, the protruding portion 81 on the inner side of the lower housing 60 is provided from one end portion in the y direction to the other end side of the lower housing 60. According to this configuration, it is possible to prevent the sound generated when the carriage 40 moves in the y direction from reverberating in the lower housing 60 and being heard outside the housing 100 as an abnormal sound. That is, according to the structure of the present embodiment, the generation of noise from the flatbed scanner 1 is prevented, and the protrusion 81 is provided in the lower casing 60, so that the strength of the lower casing 60 is improved. It becomes possible.

  In addition, although it is preferable to provide the protrusion part 81 from the one end side of the lower housing | casing 60 to the other end side like this embodiment, it is not necessarily necessary, for example, considering the design space by another structure, etc. Even if the other end portion has a configuration in which the protruding portion 81 is provided only halfway, the echo of the sound inside the lower housing 60 can be reduced. Even in such a case, it is preferable that the protruding portion 81 is provided with respect to the center portion of the lower housing 60, and it is preferable that the protruding portion 81 is provided at the position of the recessed portion 62, and it is more preferable that the protruding portion 81 protrudes to the document table 11 side as much as possible. Specifically, it is preferable that the amount of protrusion is such that it does not slightly overlap the area through which the carriage 40 passes. When the rib 81c is provided, the amount of protrusion in the z direction is smaller than that. preferable.

  FIG. 6 is an enlarged view of a main part of the image reading apparatus according to the embodiment of the present invention. The carriage 40 in the present embodiment has a cable fixing member 45. As shown in FIG. 6, the connection cable 64 is fixed to the cable fixing member 45 and then the image reading sensor 41 provided on the carriage 40. Is connected to the connection cable 64. At this time, a connection cable 64 is connected to the connection position 41a with respect to the image reading sensor 41 in parallel with the document table 11, and among the connection cables 64, the cable fixed portion 64b is fixed as follows. It is fixed to the member 45.

  That is, it is attached by being inserted into the image reading sensor 41 in the positive y-axis direction in FIG. 6, and is then extended in the negative y-axis direction and folded 180 degrees to the negative z-axis direction side at the bent portion 64b1. . At this time, the upper part of the bent portion is pressed by the first fixing claws 45a provided at both ends of the cable fixing member 45 in the x direction.

  After the connection cable 64 is bent at the bent portion 64b1 and then stretched in the positive y-axis direction, the connection cable 64 is bent again 180 degrees toward the negative z-axis direction at the bent portion 64b2. That is, the second floor is bent into a bellows shape by the bent portion 64b1 and the bent portion 64b2. After that, the connection cable 64 extended in the y-axis negative direction is bent 90 degrees toward the z-axis negative direction at the bent portion 64b3 at a midpoint between the bent portions 64b1 and 64b2.

  Thereafter, the bent portion 64b4 is bent at an angle of 45 degrees so that the connection cable 64 is extended in the positive x-axis direction around the positive y-axis side. Connection that tends to spread in the negative y-axis direction by the elasticity (restoring force) of the connection cable 64 by the second fixed claw 45b for holding the portion extending in the negative z-axis direction from the bent part 64b3 to the bent part 64b4 The cable 64 is held on the cable fixing member 45 side.

  When bent at the bent portion 64b4, the connection cable 64 is pulled down to a position where it does not overlap the carriage 40 in the z direction. At the same time, the connection cable 64 is perpendicular to the document table 11 by being folded at the bent portion 64b4.

  The cable fixing member 45 has a cable guide 46 so as to be along the connection cable 64 that has been changed to a direction perpendicular to the document table 11. The connection cable 64 is bent from one end side to the other end side of the lower housing 60 at a bent portion 64b4. Then, the connection cable 64 is bent toward the other end side, and then pulled out so as to extend in the x direction to the one end side again, whereby the connection cable 64 is connected to the cable guide 46. It is energized by its own elasticity.

  With this configuration, as shown in FIG. 7, the carriage 40 moves above the connection cable 64 (movable part 64 a) (in the z-axis positive direction) and moves to the other end side, and the connection cable 64 is moved to the carriage. Even if it extends from the end 40 toward the one end side, the elasticity of the connecting cable 64 itself can be secured up to the vicinity of the tip of the cable guide 46, and when the carriage 40 moves again to the one end side, the carriage It is possible to prevent the connection cable 64 from being caught below the 40.

  Further, since the connection cable 64 is arranged perpendicular to the document placing table 11 (the width direction of the cable is perpendicular to the document placing table 11), sliding friction with the bottom surface of the cable housing space 82 is suppressed. . The movement of the carriage 40 from the one end side to the other end side of the lower casing 60 is repeated many times for each reading operation. However, the above-described constant bending method can be used, and the unintended bending method. Therefore, it is possible to prevent the connection cable 64 from being caught or disconnected from the load.

  Further, when the connection cable 64 is extended in parallel with the document table 11, the connection cable 64 may stick to the document table 11 when the carriage 40 moves. This is because when one of the positive and negative charges is charged on the surface (document side) of the document table 11 formed of an insulator such as glass, the other charge is charged on the other surface (inside the housing 100). . Even when the document table 11 is charged due to friction with the document or the like by arranging the connection cable 64 (particularly the movable portion 64a) so as to be orthogonal to the document table 11 as in the present embodiment, It is possible to prevent the connection cable 64 from sticking to the document table 11. By doing so, it is possible to prevent the connection cable 64 attached to the document table 11 from hindering the movement when the carriage 40 moves to the other end side (y-axis positive direction side) of the housing 100.

  Further, the connection cable 64 provided so as to be orthogonal to the document placement table 11 is near the center in the y direction (sub-scanning direction), and the connection cable 64 is parallel to the document placement table 11 on one side of the lower housing 60. After being twisted so as to be pulled out along the inner wall on the bottom surface side of the lower housing 60, it is inserted from the opening 81 b provided in the wall portion 81 a to the bottom surface side of the lower housing 60.

  At this time, the connection cable 64 is bent by 45 degrees at the other end side of the position fixed by the fitted portion 64d, and is directed again in a direction parallel to the document table 11, along the bottom surface of the lower housing 60. After being extended toward the wall part 81a, the wall part 81a is penetrated and connected to the control board 63. Since the connection cable 64 communicates from the inside of the lower housing 60 into the recess 62 in this way, the fixing position of the control board in the z-direction in the recess 62 is substantially flush with the bottom surface of the lower housing 60. Is preferred.

  In this way, the connection cable 64 passes through the wall portion 81 a from the inside of the housing 100, is routed to the bottom surface side of the lower housing 60, and is connected to the control board 63 disposed in the recess 62. By doing so, at the time of maintenance of the control board 63, it is possible to access the control board 63 simply by removing the board cover 61, so that maintainability is improved. Further, in the maintenance of the control board 63, only the recess 62 is opened to the outside, so that foreign matter can be prevented from entering the housing 100. In the image reading apparatus as in the present embodiment, if dust or dirt adheres to the glass document table 11 or the like from the inside of the casing 100, white spots or black spots may appear on the image. Therefore, as in the present embodiment, by providing the recess 62, the effect of enabling the control board 63 to be attached to the housing 100 from the outside is remarkably exhibited.

  On the other hand, such a configuration makes it easier for the control board 63 to be disposed closer to the bottom surface of the lower housing 60 and to be easily affected by static electricity from the bottom surface side. On the other hand, in the present embodiment, a sheet metal 69 is disposed between the control board 63 and the board cover 61 as shown in FIG. As a result, the influence of static electricity or the like on the control board 63 can be suppressed. The sheet metal 69 may be fixed to the substrate cover 61 by screws or fitting, or may be fixed by adhesion so that the sheet metal 69 can be detached from the lower housing 60 integrally with the substrate cover 61.

  According to this configuration, it is possible to prevent deterioration in maintainability while taking measures against static electricity and the like. Further, the substrate cover 61 may be fixed to the lower casing 60 by fastening together with a screw for fixing the substrate cover 61 to the lower casing 60. If it does in this way, fixation of the sheet metal 69 can be removed by removing the substrate cover 61, and it can prevent that workability | operativity falls. Further, the sheet metal 69 in the present embodiment is fixed so as to be in close contact with the inside of the housing 100 of the substrate cover 61 and has a size capable of covering the control substrate 63 in the z direction.

  FIG. 9 is a cross-sectional view of an image reading apparatus according to an embodiment of the present invention. FIG. 9B shows a cross section taken along line AA in FIG. A rib 81c is provided at the end (upper end) of the wall portion 81a on the document placement table 11 side so as to protrude from the end portion on the document placement table 11 side of the other portion of the projection 81. . A shaft 42 a extending from one end side to the other end side of the lower housing 60 is inserted into the engagement hole member 43 provided in the lower portion of the carriage 40, and the movement of the carriage 40 is performed by an engagement portion provided in the carriage 40. This is done by controlling the belt (moving means) engaged with the control board 63. In this embodiment, a belt and a motor for driving the belt are used as the moving means. However, the moving means is not limited thereto, and various modifications such as a motor and a lead screw are possible.

  The engagement hole member 43 is formed in a cylindrical shape having a predetermined length in the y direction with respect to the shaft 42a. In the present embodiment, the rib 81c is formed at a predetermined position from the center in the x direction, and the shaft 42a is provided on the opposite side to support the movement of the carriage 40, and the position between them (the center in the x direction) A belt for driving the carriage 40 is provided on the side. The belt is provided on the side of the shaft 42 a, whereby the carriage 40 can be prevented from tilting and moving when the driving force by the belt is transmitted to the engagement hole member 43. That is, with respect to the central portion in the x direction of the carriage 40, one end side is supported by the shaft 42a with a predetermined distance from the side wall of the lower housing 60, and the other end side is supported by a predetermined distance from the side wall of the lower housing 60. Since the carriage 40 is stably supported by being spaced apart and supported by the ribs 81c, the carriage 40 is driven by the belt provided in the meantime (center side), so that the carriage 40 is inclined during movement. It is preventing.

  In the present embodiment, the carriage 40 is moved using the rib 81c as a rail portion, but a groove portion is provided on the upper surface of the rib 81c, that is, in the center of the portion where the carriage 40 slides in contact with the carriage 40. According to this configuration, the sliding resistance with respect to the carriage 40 can be reduced. In order to further reduce the sliding resistance, grease or the like may be applied to the groove.

  In the bottom surface side of the lower housing 60 of the carriage 40 in FIG. 9, a carriage lock member 65 passes through the bottom surface side of the lower housing 60 and is provided at the center in the width direction (x direction) of the lower housing 60. Yes. Since the image reading sensor 41 is disposed at the center in the width direction with respect to the lower housing 60, the carriage lock member 65 is disposed at the center in the width direction with respect to the image reading sensor 41 or the carriage 40. It will be.

  According to this configuration, when the carriage lock member 65 prevents the carriage 40 from moving to the other end, the maximum value of the moment (particularly the end in the width direction) applied to the carriage 40 can be reduced. In addition, the load on the engagement hole member 43 can be reduced. In the present embodiment, the movement of the carriage 40 is guided by supporting the bottom surface of the carriage 40 with the shaft 42a and the rib 81c, but the carriage lock member 65 is provided on the center side of the two members. As a result, the movement of the carriage 40 can be stably regulated.

  The carriage lock member 65 will be described in more detail. By positioning the carriage lock member 65 closer to the rib 81c side than the shaft 42a, in addition to the above-described stable restriction, the movement restriction on the xy plane in the width direction of the carriage 40 is performed. It can also be suitably performed between the engagement hole member 43. That is, in this embodiment, when the carriage lock member 65 is used, the restriction in the z direction (negative direction) is performed by the shaft 42a and the rib 81c, but the movement restriction in the xy plane is Since this is performed by the shaft 42a and the carriage lock member 65, the two members are arranged at positions spaced from the center to both ends in the width direction of the carriage 40, thereby restricting movement in the xy plane. The moment exerted on the carriage 40 can be reduced.

  Further, the lower housing 60 is provided with a bent structure 66. By the bent structure 66, the connection cable 64 is fixed so as to wave in the x direction at the cable bent portion 64c. The connection cable 64 that is stiffened so that the cable bending portion 64c is waved is directed toward the bottom surface side of the lower housing 60 by the fitting member 67 at the fitting portion 64d that is continuous with the other end side of the cable bending portion 64c. Pressed down and fixed.

  By doing so, it is possible to prevent the connection cable 64 from floating from the lower housing 60 in the z direction when the carriage 40 moves in the y direction and the connection cable 64 moves in the cable housing space 82. Thus, the stable connection cable 64 can be slid. However, it is not always necessary to make contact with the fitting member 67, and it may be made to contact with the connection cable 64 when moving upward by a predetermined amount (z-axis positive direction).

  An operation unit board 54 is provided at a position corresponding to the bottom surface side of the operation unit 50, and an operation unit cable 56 connected to the operation unit connector 55 of the operation unit board 54 is connected to the central portion of the lower housing 60. Is drawn around the projecting portion 81 of the lower housing 60 toward the bottom, is pulled out so as to penetrate to the bottom surface side of the lower housing 60 at a position corresponding to the recess 62, and is connected to the control board 63. Yes.

  As described above, the connection cable 64 is configured to be positioned on the bottom surface side of the lower housing 60, and the carriage 40 is supported by the shaft 42a and the rib 81c to be scanned in the y direction (sub scanning direction). The image reading operation of the document D by the image reading sensor 41 is performed while preventing the carriage 40 and the connection cable 64 from contacting each other so that the carriage 40 passes above the connection cable 64 (upward in the vertical direction when the main body is placed). Can be executed.

(Second embodiment)
Hereinafter, although a second embodiment of the present invention will be described, the basic configuration is the same as that of the first embodiment, and therefore description thereof will be omitted, and only different parts will be described.

  In the present embodiment, an ADF (Auto Document Feeder) is provided on the upper portion of the flat bed scanner 1. In this case, a known ADF can be used, and the structure is not particularly limited.

  In the first embodiment, the opening / closing lid 20 is opened and closed in the yz plane. However, in the present embodiment, the opening / closing lid 20 may be opened and closed in the xz plane. That is, it is possible to provide an ADF on one end side so that the ADF portion does not open or close even when the opening / closing lid 20 is opened or closed.

  In this case, the operation unit 50 is preferably provided on the outer side surface of the casing 100 which is on either end side in the x direction of the casing 100 and which is the leading end side in the opening / closing of the opening / closing lid 20. In this case, the operation unit board 54 is also provided at the same position, but the operation unit cable 56 is shortened by disposing the operation unit 50 at the central portion in the y direction, that is, at a position facing the recess 62. can do.

  Further, regarding the connection between the ADF and the control board 63, the ADF is provided on the one end side of the housing 100 as described above, and the arrangement of the connection cable 64 as described in the first embodiment is considered. The connection part (cable) 200 to the control board is preferably provided at the position where the operation part cable 56 is provided in the first embodiment. Specifically, the connection part 200 is inserted into the housing 100 from the ADF. It is preferable that the connecting portion 200 is arranged so that the upper surface of the projecting portion 81 is drawn from there and penetrates to the facing side of the lower housing 60 at a position corresponding to the concave portion 62. In addition, the connection part 200 may be the structure inside the housing | casing 100 comprised so that it might be connected with respect to connection parts, such as a connector provided in ADF, As an example, it demonstrated in 1st embodiment. The operation unit cable 56 may be extended to the outside of the housing 100.

  Furthermore, in each of the embodiments described above, a flatbed scanner has been described as an example of an image reading apparatus. However, the present invention is not limited to this, and an apparatus including an image reading apparatus (image reading unit), for example, The present invention may be applied to various processing apparatuses such as copying machines and multifunction machines.

1 Flatbed Scanner 40 Carriage 41 Image Reading Sensor 62 Recess 63 Control Board 64 Connection Cable

Claims (7)

A housing having a document table on the top surface on which a document is placed;
Image reading means for reading a document placed on the document placing table;
Moving means for moving the image reading means in a sub-scanning direction perpendicular to the main scanning direction of the image reading means;
A control board on which a control means for controlling a reading operation by the image reading means is mounted;
A connection means for connecting the control board and the image reading means;
The case has a recess formed from the bottom side toward the inside of the case, and the control board is disposed in the recess.
A movable portion including a portion that moves as the image reading unit moves of the connecting unit is disposed in an accommodation space between a side wall inside the housing and a side wall inside the housing of the recess, and the moving unit An image reading apparatus that slides in the housing space as the image reading means moves.   The image reading apparatus according to claim 1, wherein the movable part of the connection unit is disposed perpendicular to the document table in the accommodation space.   The image reading apparatus according to claim 2, wherein the concave portion is provided along a movable range of the movable portion of the connecting means in the sub-scanning direction.   4. The image reading apparatus according to claim 1, wherein the concave portion is provided from one end portion to the other end portion of the housing in the sub-scanning direction. 5.   The said connection means is fixed to the said image reading means via the fixing means for arrange | positioning the said movable part in parallel with the said document mounting base, The any one of Claim 1 to 4 characterized by the above-mentioned. Image reading apparatus.   The image according to any one of claims 1 to 5, wherein a rail portion that slides when the image reading unit moves is formed at an upper end portion of the concave portion inside the housing. Reader. One end of the connection means is fixed to the image reading means, and the other end communicates from the central portion of the housing in the sub-scanning direction into the recess, and is connected to the control means.
The image reading apparatus according to claim 1, wherein the image reading unit moves above the connection unit.

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