JP5691378B2 - Image reading device, multifunction device - Google Patents

Description

  The present invention relates to an image reading apparatus and a multifunction peripheral.

2. Description of the Related Art A carriage movement type image reading apparatus that reads an image from a document placed on a document table by reciprocating a carriage having an image sensor in parallel with the surface of the document table is well known. An image scanner as such an image reading apparatus includes an image reading unit for reading an image from a document, and a data processing unit for converting a signal output from the image reading unit into image data.
The image reading unit and the data processing unit are electrically connected by a flexible flat cable that is a flat signal cable. The image reading unit is mounted on a carriage that reciprocates, and the data processing unit is configured by a circuit board fixed to the casing. One end of the flexible flat cable is fixed to a reciprocating carriage, and the other end of the flexible flat cable is fixed to a circuit board fixed to the housing.
The flexible flat cable is provided in a state of being folded back in the moving direction of the carriage. Therefore, a part of the flexible flat cable may be caught with the movement of the carriage. If a part of the flexible flat cable is caught, the carriage comes into contact with the flexible flat cable, and the carriage cannot be moved.
Therefore, for example, Patent Document 1 proposes a scanning device including a winding drum that winds a flexible flat cable. However, the method of Patent Document 1 has a problem that a mechanism for winding the flexible flat cable must be provided.

Japanese Patent Laid-Open No. 5-170331

  In a state where the flexible flat cable is folded, a curved portion in which the flexible flat cable is curved is formed in the moving direction of the carriage, and the curved shape in the curved portion changes as the carriage reciprocates. The curved portion of the flexible flat cable is formed even when the position of the carriage is farthest from the circuit board in the carriage movement range. Therefore, it is necessary to secure a space area for accommodating the bending portion in the housing so that the bending portion of the flexible flat cable does not contact the inside of the housing. For this reason, there is a problem that the outer dimension in the moving direction of the carriage of the image scanner becomes long.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

Application Example 1 A housing that supports a document table on which a document is placed, an image reading unit that reciprocates inside the housing and reads an image from the document placed on the document table, and one end side is A cable that is connected to the image reading unit, the other end side of which is fixed to the housing, and a bending portion whose bending shape changes with the movement of the image reading unit, and the image reading unit includes: Provided on the outer side in the moving direction of the image reading unit, connected to the cable, and provided on the opposite side of the transmission unit, and a transmission unit for sending the signal output from the image reading unit to the cable, A holding unit that holds the cable connected to the transmission unit, and the other end side of the cable is fixed in a range in which the image reading unit is movable in the moving direction of the image reading unit. Most distant from the fixed part The curved portion of the cable is in the moving direction of the image reading unit when compared to the portion farthest from the fixing portion to which the other end side of the cable in the holding portion is fixed, An image reading apparatus, wherein the other end side of the cable is on the fixed portion side fixed.

According to this configuration, when the image reading unit is located at a position farthest from the fixed portion to which the other end side of the cable is fixed in a movable range in the moving direction of the image reading unit, the curved portion of the cable is In the moving direction of the image reading unit, the other end side of the cable is located on the fixed part side where the other end side of the cable is farthest from the fixed part where the other end side of the cable is fixed. Therefore, the length in the moving direction of the image reading unit in the space region for accommodating the curved portion of the cable inside the housing can be reduced. Therefore, the outer dimension in the moving direction of the image reading unit of the image reading apparatus can be reduced.

Application Example 2 An image reading apparatus characterized in that a direction in which the cable extends from the holding unit that holds the cable is a direction that intersects the moving direction of the image reading unit.

According to this configuration, the direction in which the cable extends from the holding unit that holds the cable is a direction that intersects the moving direction of the image reading unit. Therefore, when the image reading unit is within the movable range in the moving direction of the image reading unit, the radius of curvature at the curved portion of the cable is increased when the other end side of the cable is at the position farthest from the fixed unit. be able to. Thereby, in the curved part of the cable in the moving direction of the image reading part, the length extending from the holding part to the opposite side to the fixing part can be shortened. Accordingly, it is possible to reduce the length of the image reading unit in the moving direction in the space region for accommodating the curved portion of the cable inside the housing. Therefore, the outer dimension in the moving direction of the image reading unit of the image reading apparatus can be reduced.

Application Example 3 An image reading apparatus characterized in that a direction in which the cable extends from the holding portion that holds the cable is a vertical direction.
According to this configuration, the cable does not protrude from the holding unit toward the casing opposite to the fixed unit in the moving direction of the image reading unit. Thereby, the length of the moving direction of the image reading unit in the space area secured from the holding unit toward the housing can be reduced. Therefore, it can suppress that the external dimension of the moving direction of the image reading part of an image reading apparatus becomes long.

Application Example 4 An image reading apparatus characterized in that a direction in which the cable extends from the holding unit that holds the cable is a horizontal direction.
According to this configuration, the cable does not protrude from the holding unit toward the casing opposite to the fixed unit in the moving direction of the image reading unit. Thereby, the length of the moving direction of the image reading unit in the space area secured from the holding unit toward the housing can be reduced. Therefore, it can suppress that the external dimension of the moving direction of the image reading part of an image reading apparatus becomes long.

Application Example 5 The image reading apparatus is characterized in that a position where the cable is held by the holding unit is closer to the document table than a position of the transmitting unit in the vertical direction.

According to this configuration, the radius of curvature at the curved portion of the cable can be further increased.

Application Example 6 A multifunction machine including an image forming apparatus that forms an image on a recording medium and the image reading apparatus.

1 is a schematic diagram showing a schematic configuration of an image scanner. The figure which shows a flexible flat cable. (A) is an external appearance perspective view of the fixing | fixed part provided in the carriage, (b) is an external appearance perspective view which shows the flexible flat cable fixed by the fixing | fixed part. (A) is a figure which shows the curved shape of the flexible flat cable in 1st Embodiment, (b) is a figure which shows the curved shape of the curved part of the flexible flat cable in a comparative example. (A) is an external appearance perspective view of the fixing | fixed part in a comparative example, (b) is an external appearance perspective view which shows the flexible flat cable fixed by the fixing | fixed part in a comparative example. (A) is an external appearance perspective view of the fixing | fixed part provided in the carriage, (b) is an external appearance perspective view which shows the flexible flat cable fixed by the fixing | fixed part. The figure for comparing and explaining the curved shape of the curved part of the flexible flat cable in 2nd Embodiment, and the curved shape of the curved part of the flexible flat cable in 1st Embodiment. (A) is an external perspective view of an image scanner having a configuration in which the flexible flat cable is curved in the sub-scanning direction on a horizontal plane, and (b) is that the flexible flat cable protrudes from the fixed portion in the main scanning direction. FIG. FIG. 2 is a schematic diagram illustrating a schematic configuration of a multifunction machine.

(First embodiment)
The first embodiment will be described below with reference to the drawings. FIG. 1 is a schematic diagram illustrating a schematic configuration of an image scanner 1 serving as an image reading device, as viewed from the main scanning direction D2. The image scanner 1 is a flat bed type image scanner.

  A document table 4, which is a transparent glass plate, is supported by the housing 2 and provided in the opening 3 of the housing 2. The opening 3 is covered by a document cover 5 that can be rotated by a hinge (not shown) or opened.

  The carriage 9 is reciprocated in the sub-scanning direction D <b> 1 while being guided by a guide portion 10 provided inside the housing 2. The sub-scanning direction D1 is the moving direction D1 of the carriage 9.

  The carriage 9 is provided with an optical unit 8. The optical unit 8 includes a light source (not shown) and a light collecting unit. The light source includes, for example, a plurality of LEDs (Light Emitting Diode) arranged in the main scanning direction D2 and a light guide plate (Light Guide), and the light collecting unit includes a plurality of lenses arranged corresponding to the LEDs. The The main scanning direction D2 is a direction D2 that intersects the moving direction D1 of the carriage 9.

  The carriage 9 is provided with an image sensor 7. The image sensor 7 includes a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS) as a plurality of light receiving elements arranged in the main scanning direction D2.

  The circuit board 12 is provided with a drive circuit (not shown) for driving the LEDs constituting the optical unit 8 and a drive circuit (not shown) for driving the image sensor 7. The circuit board 12 is provided with a connector 11 as a wiring code lead-out part. The image sensor 7 may be mounted on the circuit board 12.

  The image reading unit 6 includes an optical unit 8, an image sensor 7, a circuit board 12, and a connector 11. As the carriage 9 moves in the sub-scanning direction D1, the image reading unit 6 irradiates light on the document S placed on the document table 4 by the light source of the optical unit 8, and reflects the reflected light from the document S to the image sensor. 7 receives light. An analog signal is output from the image sensor 7.

  As described above, the image reading unit 6 can irradiate the document S with the movement of the carriage 9 in the sub-scanning direction D1, receive the reflected light from the document S, and convert it into an analog signal.

  The data processing unit 15 converts an analog signal as an output signal output from the image reading unit 6 into digital data, performs gamma correction, shading correction, and the like, and converts them into image data. The data processing unit 15 is provided fixed to the bottom surface inside the housing 2. The data processing unit 15 includes a connector 16.

  FIG. 2 is a diagram showing the flexible flat cable 14. The flexible flat cable (hereinafter referred to as FFC) 14 includes a plurality of conductive wires 14c extending in the sub-scanning direction D1 arranged in the main scanning direction D2.

  A conducting wire 14c indicated by a broken line indicates that it is covered with an insulator 14d such as a resin. The exposed portions 14a and 14b indicate one end and the other end of the FFC 14, and the conductive wire 14c indicated by a solid line in the exposed portions 14a and 14b is covered on one surface with an insulator 14d and the other surface is exposed.

  2 is inserted into the connector 11 of FIG. 1, and the exposed portion 14b of the other end of the FFC 14 in FIG. 2 is inserted into the connector 16 in FIG. The processing unit 15 is electrically connected.

  In the present embodiment, the connector 11 as the derivation unit is used. However, the derivation unit may be configured to connect the FFC 14 to the image reading unit 6 by soldering.

  In the present embodiment, the data processing unit 15 of FIG. 1 is provided on the right side of the inner bottom portion of the housing 2 in the drawing, but a through-hole (not shown) is provided on the right side of the inner bottom portion of the housing 2 in the drawing, so May be connected to the data processing unit 15 provided outside the housing 2 through this through hole.

  In the FFC 14 of FIG. 1, a folded portion is formed in the range A in the sub-scanning direction D1 on the vertical plane in the vertical direction D3. A curved shape is formed in the folded portion. As the carriage 9 moves in the sub-scanning direction D1, the range A changes and the curved shape changes.

  The FFC 14 is flexible enough to ensure conductivity even when the curved shape changes. Therefore, by providing the FFC 14 so as to form the folded portion, it is possible to prevent the FFC 14 from being damaged even if the carriage 9 is repeatedly reciprocated in the sub-scanning direction D1.

  In the folded portion, one side of the FFC 14 is fixed to the fixing unit 13, and the other side of the FFC 14 is in contact with the bottom of the housing 2. The FFC 14 of the present embodiment is fixed so as to protrude from the fixed portion 13 in the vertical direction D3 that is a direction intersecting the moving direction D1 of the carriage 9.

  The FFC 14 fixed so as to protrude in the vertical direction D3 extends from the fixed portion 13 toward the left side of the drawing in the sub-scanning direction D1, changes direction on the left side of the drawing inside the housing 2, and folds back to the right side of the drawing in the sub-scanning direction D1. Provided as such.

  FIG. 3A is an external perspective view of the fixing portion 13 provided in the carriage 9. The carriage 9 includes a contact portion 51 having a horizontal surface 51a, and pressing portions 50a and 50b provided with a clearance B1 in the sub-scanning direction D1 from the contact portion 51.

  An opening 52 is formed in the carriage 9, and the opening 52 is directly connected to a through hole (not shown) that penetrates the carriage 9 in the lower side of the drawing in the vertical direction D <b> 3.

  The fixing portion 13 in the present embodiment includes a contact portion 51, a horizontal surface 51a, pressing portions 50a and 50b, and an opening 52.

  FIG. 3B is an external perspective view showing the FFC 14 fixed by the fixing unit 13. A part of the FFC 14 is fixed so as to be sandwiched by a gap B1 between the contact portion 51 and the pressing portions 50a and 50b.

  The FFC 14 that is in contact with the horizontal plane 51a is inserted horizontally in an opening 52 formed in the carriage 9, passes through a through-hole directly connected to the opening 52 in the vertical direction D3, and the lower side of the carriage 9 in the vertical direction D3. It is provided so as to wrap around the side, and is connected to a connector 11 provided on the side opposite to the contact portion 51 of the carriage 9.

  An arrow M1 indicates a position where the FFC 14 protrudes from the fixed portion 13 in the vertical direction D3. At the position M1 where the FFC 14 protrudes from the fixed portion 13, the line direction of the conducting wire 14c (see FIG. 2) constituting the FFC 14 is the vertical direction D3.

  FIG. 4A is a diagram illustrating a curved shape of the curved portion W1 of the FFC 14 viewed from the main scanning direction D2 in the present embodiment. The carriage 9 shown in FIG. 4A is at a position farthest from the data processing unit 15 in the movable range of the carriage 9 in the sub-scanning direction D1.

  Arrows a1 to a3 in FIG. 4A indicate the line direction of the conducting wire 14c of the FFC 14 (see FIG. 2). The FFC 14 protruding from the fixed portion 13 in the line direction a1 which is the vertical direction D3 changes its direction in the line direction a2 along the curved shape of the bending portion W1, and is directed to the line direction a3 which is the sub-scanning direction D1. It is provided in contact with the bottom of the housing 2.

(Comparative example)
Fig.5 (a) is an external appearance perspective view of the fixing | fixed part 20 in a comparative example. The carriage 9 includes a contact portion 61 having a horizontal surface 61a, and pressing portions 60a and 60b provided with a clearance B2 in the vertical direction D3 with the contact portion 61.

  FIG. 5B is an external perspective view showing the FFC 14 fixed by the fixing unit 20 in the comparative example. The FFC 14 in contact with the horizontal plane 61 a is inserted in the horizontal direction into the opening 52 formed in the carriage 9, passes through a through hole (not shown) directly connected to the opening 52 in the vertical direction D 3, and It is provided so as to wrap around the lower side in the direction D <b> 3, and is connected to a connector 11 provided on the side opposite to the contact portion 61 of the carriage 9.

  An arrow M2 indicates a position where the FFC 14 protrudes from the fixed portion 20 in the sub scanning direction D1. At the position M2 where the FFC 14 protrudes from the fixed portion 20, the line direction of the conducting wire 14c constituting the FFC 14 is the sub-scanning direction D1.

  FIG. 4B is a diagram illustrating a curved shape of the curved portion W2 of the FFC 14 viewed from the main scanning direction D2 in the comparative example. The carriage 9 shown in FIG. 4B is at a position farthest from the data processing unit 15 in the movable range of the carriage 9 in the sub-scanning direction D1.

  Arrows b1 to b5 in FIG. 4B indicate the line direction of the conducting wire 14c of the FFC 14. The FFC 14 protruding in the line direction b1 that is the sub-scanning direction D1 from the fixed portion 20 provided in the carriage 9 changes its direction to the line directions b2, b3, and b4 along the curved shape of the bending portion W2, and the sub-scanning direction. It is provided in contact with the bottom of the housing 2 so as to face the line direction b5 which is D1.

  Thus, in the line direction of the conducting wire 14c in the FFC 14 of the present embodiment in FIG. 4A, the direction of the line direction is changed by 90 degrees from the position M1 protruding from the fixed portion 13 to the bottom of the housing 2. On the other hand, in the linear direction of the conducting wire 14c in the FFC 14 of the comparative example, the direction of the linear direction is changed by 180 degrees from the position M2 protruding from the fixed portion 20 to the bottom portion of the housing 2.

  The distance H1 from the position M1 at which the FFC 14 of the present embodiment in FIG. 4A protrudes from the fixed portion 13 to the bottom of the housing 2 is from the position M2 at which the FFC 14 of the comparative example in FIG. It is assumed that the distance is the same as the distance H1 to the bottom of the housing 2.

  Therefore, the curvature radius R1 in the curved shape of the curved portion W1 of the FFC 14 of the present embodiment in FIG. 4A is longer than the curvature radius R2 in the curved shape of the curved portion W2 of the FFC 14 in the comparative example of FIG.

  Therefore, the end P1 on the opposite side to the data processing unit 15 in the sub-scanning direction D1 of the bending portion W1 of the present embodiment in FIG. 4A is at the position M1 where the FFC 14 protrudes from the fixed portion 13.

  On the other hand, the end portion P2 on the opposite side of the data processing unit 15 in the sub-scanning direction D1 of the curved portion W2 of the comparative example of FIG. is there.

  That is, in the present embodiment, in the sub-scanning direction D1, the distance from the position M1 protruding from the fixed portion 13 to the end portion P1 of the curved portion W1 on the opposite side to the data processing portion 15 can be shortened.

  As described above, the image scanner 1 serving as the image reading apparatus described in the present embodiment reciprocates in the box-shaped housing 2 that supports the transparent document table 4 and the inside of the housing 2 in parallel with the surface of the document table 4. A carriage 9 that is mounted on the carriage 9, and an image sensor 7 that converts the reflected light from the document S placed on the document table 4 into an output signal, and a connector 11 that serves as a wiring code derivation unit for transmitting the output signal. A data processing unit 15 that is fixed to the housing 2 and converts an output signal from the image reading unit 6 into image data, and a signal cable that is covered with an insulator 14d. It has a plurality of conductive wires 14 c, one end is electrically connected to the connector 11 of the image reading unit 6, and the other end is electrically connected to the data processing unit 15. The FFC 14 has a curved portion W1 that is curved in the moving direction D1, and the curved shape of the curved portion W1 changes as the carriage 9 reciprocates, and the carriage 9 is provided with the image reading unit 6 side of the FFC 14 on the carriage side. And the fixing portion 13 so that the linear direction of the conducting wire 14c at the position M1 at which the FFC 14 protrudes from the fixing portion 13 is a vertical direction D3 that intersects the moving direction D1 of the carriage 9. The FFC 14 is fixed by 13.

  According to this configuration, when the carriage 9 is located farthest from the data processing unit 15 in the movement range of the carriage 9, the radius of curvature R1 at the curved portion W1 of the FFC 14 can be increased. Thereby, in the curved part W1 in the moving direction D1 of the carriage 9, the length extending from the fixed part 13 to the side opposite to the data processing part 15 can be shortened. Therefore, the length of the carriage 9 in the moving direction D1 in the space region for accommodating the curved portion W1 of the FFC 14 can be reduced inside the housing 2. Therefore, the outer dimension of the moving direction D1 of the carriage 9 of the image scanner 1 can be reduced.

(Second Embodiment)
In the second embodiment, an image scanner provided with a fixing portion on the side of the document table 4 from the connector 11 in the vertical direction D3 will be described. FIG. 6A is an external perspective view of the fixing portion 13a provided on the carriage 9a. The carriage 9a includes a contact portion 61 having a horizontal surface 61a, and pressing portions 60a and 60b provided with a contact portion 61 and a gap B3 in the sub-scanning direction D1.

  An opening 62 is formed in the carriage 9a, and the opening 62 is directly connected to a through hole (not shown) penetrating downward in the vertical direction D3 of the carriage 9a.

  The fixing portion 13a in the present embodiment includes a contact portion 61, a horizontal surface 61a, pressing portions 60a and 60b, and an opening 62.

  FIG. 6B is an external perspective view showing the FFC 14 fixed by the fixing portion 13a. A part of the FFC 14 is fixed so as to be sandwiched by a gap B3 between the contact portion 61 and the pressing portions 60a and 60b.

  The FFC 14 in contact with the horizontal surface 61a is inserted in the opening 62 formed in the carriage 9a in the horizontal direction, is bent in the vertical direction D3 in the opening 62, and a through hole directly connected to the opening 62 is formed in the vertical direction D3. Is connected to a connector 11 provided on the opposite side of the contact portion 61 of the carriage 9a.

  The horizontal surface 61a, the opening 62, and the holding portions 60a and 60b of this embodiment are provided on the side of the document table 4 from the connector 11 in the vertical direction D3.

  An arrow M3 indicates a position where the FFC 14 protrudes in the vertical direction D3 from the fixed portion 13a. At the position M3 where the FFC 14 protrudes from the fixed portion 13a, the line direction of the conducting wire 14c (see FIG. 2) constituting the FFC 14 is the vertical direction D3.

  FIG. 7 is a diagram for comparing and explaining the curved shape of the curved portion W3 of the FFC 14 in the present embodiment and the curved shape of the curved portion W1 of the FFC 14 in the first embodiment. The position M3 at which the FFC 14 protrudes in the vertical direction D3 by the fixing portion 13a of the present embodiment is a position at a distance H2 from the bottom of the housing 2. The position M1 at which the FFC 14 protrudes in the vertical direction D3 by the fixing portion 13 of the first embodiment is at a distance H1 from the bottom of the housing 2.

  The distance H2 is longer than the distance H1. Therefore, the length of the curvature radius R3 in the curved portion W3 of the FFC 14 of the present embodiment is longer than the length of the curvature radius R1 in the curved portion W1 of the FFC 14 of the first embodiment. Other configurations of the image scanner of the present embodiment are the same as the configurations of the image scanner 1 described in the first embodiment.

  As described above, in the image scanner described in the present embodiment, the position M3 fixed by the fixing portion 13a so that the line direction of the conducting wire 14c of the FFC 14 protrudes in the vertical direction D3 is the wiring code deriving portion in the vertical direction D3. It is on the side of the document table 4 from the position of the connector 11.

  According to this configuration, the radius of curvature R3 at the curved portion W3 of the FFC 14 can be further increased. Therefore, the length of the space region in the sub-scanning direction D1 for securing the curved portion W3 of the FFC 14 in the housing 2 can be reduced. Therefore, the external dimension of the image scanner in the sub-scanning direction D1 can be reduced.

(Third embodiment)
In the first embodiment and the second embodiment, the FFC 14 is configured to bend in the sub-scanning direction D1 on the vertical plane in the vertical direction D3. However, the FFC 14 is in the sub-scanning direction on the horizontal plane in the main scanning direction D2. The present invention is also applied to an image scanner configured to bend to D1.

  FIG. 8A is an external perspective view of the image scanner 1b having a configuration in which the FFC 14 is curved in the sub-scanning direction D1 on the horizontal plane in the main scanning direction D2. FIG. 8A shows a state where the document cover and the document are removed.

  Inside the case 2 in the vertical direction D3 of the document table 4 supported by the case 2, a carriage 9b on which an image reading unit (not shown) is mounted, and a guide for supporting the carriage 9b so as to be movable in the sub-scanning direction D1. A unit 10 and the like are provided. The FFC 14 is provided with the FFC 14 curved in the sub-scanning direction D1 on the horizontal plane in the main scanning direction D2.

  FIG. 8B is a schematic diagram showing that the FFC 14 protrudes from the fixed portion 13b in the horizontal direction D2. FIG. 8B is a view as seen from the sub-scanning direction D1, and shows the FFC 14 fixed to the fixing portion 13b. The FFC 14 is fixed so that the direction extending from the position where the FFC 14 protrudes from the fixing portion 13b protrudes in the horizontal direction D2.

  Such an image scanner 1b can reduce the external dimension in the vertical direction D3. Then, by fixing the FFC 14 so that the direction extending from the position protruding from the fixing portion 13b protrudes in the horizontal direction D2, portions formed by bending so that a part of the FFC 14 is wound are formed on the carriage 9b and the carriage 9b. It can suppress that it is pinched | interposed into the housing | casing 2 of the horizontal direction D2 side.

  The image scanner as the image reading apparatus has been described above, but the present invention is also applied to a multifunction machine having an image reading function and an image forming function. FIG. 9 is a schematic diagram illustrating a schematic configuration of a multi-function peripheral having an image reading function and an image forming function.

  The multifunction machine 200 includes an image scanner 1a as an image reading apparatus and a printer 100 as an image forming apparatus. The image scanner 1a has a function of reading an image drawn on the document S, and the printer 100 has a function of forming an image on a sheet M as a recording medium.

  The opening 3 in the housing 2 a of the image scanner 1 a is provided with a transparent document table 4, and the opening 3 can be covered with the document cover 5 and opened.

  In the housing 2a of the image scanner 1a, an image reading unit 6 that reciprocates along the guide unit 10, a data processing unit 15 that converts an output signal output from the image reading unit 6 into image data, and an image reading unit 6 And the data processing unit 15 are provided with an FFC 14.

  The image reading unit 6 includes a connector 11 connected to the optical unit 8, the image sensor 7, and the exposed portion 14a of the FFC 14 (see FIG. 2). The carriage 9 is provided with a fixing portion 13 for fixing the FFC 14. The data processing unit 15 includes a connector 16 connected to the exposed portion 14b of the FFC 14.

  The image reading unit 6, the data processing unit 15, the FFC 14, the fixing unit 13 and the like constituting the image scanner 1 a are the same as the configuration of the image scanner 1 described in the first embodiment.

  A printer 100 is provided on the lower side of the image scanner 1a in the vertical direction D3. In the housing 101 of the printer 100, a carriage drive unit including a printer carriage motor (not shown), a rotating belt (not shown), a printer carriage motor drive circuit (not shown), and the like is provided. The carriage drive unit moves the printer carriage 104 along the guide unit 106.

  An ink cartridge 103 filled with color ink and an ink cartridge 102 filled with monochrome ink are detachably mounted on the printer carriage 104. The printer carriage 104 includes a liquid ejecting head 105 that ejects ink.

  In the housing 101 of the printer 100, a paper transport unit including a transport motor (not shown), a gear train (not shown), a transport roller (not shown), and the like is provided. The paper transport unit transports the paper M in a direction crossing the moving direction of the printer carriage 104.

  The printer 100 uses the image data output from the data processing unit 15 of the image scanner 1a and the image data input from a computer (not shown) connected to the outside of the multi-function device 200 to liquid the paper M to be conveyed. An image is formed by ejecting ink from the ejection head 105.

  In such a multifunction machine 200, by including the fixing unit 13 described in the first embodiment and the fixing unit 13a described in the second embodiment, it is possible to suppress a part of the FFC 14 in the image scanner 1a from being caught. Can do.

  DESCRIPTION OF SYMBOLS 1, 1a ... Image scanner, 2, 2a ... Image scanner housing, 4 ... Document stand, 6 ... Image reading part, 7 ... Image sensor, 9, 9a ... Carriage, 11 ... Connector, 13, 13a ... Fixed part, DESCRIPTION OF SYMBOLS 14 ... Flexible flat cable (FFC), 14c ... Conductor, 14d ... Insulator, 15 ... Data processing part, 51, 61 ... Contact part, 51a, 61a ... Horizontal surface, 52, 62 ... Opening part, 50a, 50b, 60a , 60b ... holding unit, 100 ... printer, 200 ... multifunction device, D1 ... carriage movement direction (sub-scanning direction), D2 ... direction intersecting carriage movement direction (main scanning direction), D3 ... vertical direction, M1, M3 ... position where the flexible flat cable protrudes from the fixed part, S ... original.

Claims (6)

A housing that supports a document table on which a document is placed;
An image reading unit that reciprocates inside the housing and reads an image from the document placed on the document table;
A cable in which one end side is connected to the image reading unit, the other end side is fixed to the housing, and a bending portion whose bending shape changes with the movement of the image reading unit;
With
The image reading unit
A transmission unit that is provided outside in the moving direction of the image reading unit, is connected to the cable, and sends the signal output from the image reading unit to the cable;
A holding part that is provided on the opposite side of the transmission part and holds the cable connected to the transmission part;
When the image reading unit is located at a position farthest from the fixed portion to which the other end side of the cable is fixed in a movable range in the moving direction of the image reading unit, the bending portion of the cable is
In the moving direction of the image reading unit, the fixing unit side to which the other end side of the cable is fixed as compared to a portion farthest from the fixing unit to which the other end side of the cable in the holding unit is fixed It is in,
An image reading apparatus. The image reading apparatus according to claim 1,
The direction in which the cable extends from the holding unit that holds the cable is a direction that intersects the moving direction of the image reading unit.
An image reading apparatus. The image reading apparatus according to claim 1,
The direction in which the cable extends from the holding portion that holds the cable is a vertical direction.
An image reading apparatus. The image reading apparatus according to claim 1,
The direction in which the cable extends from the holding portion that holds the cable is a horizontal direction.
An image reading apparatus. The image reading apparatus according to claim 3,
The position where the cable is held by the holding unit is closer to the document table than the position of the transmitting unit in the vertical direction.
An image reading apparatus. An image forming apparatus for forming an image on a recording medium;
An image reading apparatus according to any one of claims 1 to 5.
A multi-function machine characterized by this.

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