JP2015231674A - Recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording device capable of stably reducing noise of a cable led out inside the recording device reduced in size.SOLUTION: A recording device comprises: a control section controlling recording operation with respect to a medium to be recorded; a carriage movable in a predetermined movement direction on the basis of control of the control section; a first cable being connected to the control section and the carriage and crossing above at least a part of a movement region of the carriage in the predetermined movement direction; and a metal member shielding at least a part of a portion extending in a direction intersecting with the predetermined movement direction in the first cable. The recording device further comprises: a guide member guiding the first cable and being formed of metal; and a substrate constituting the control section. The metal member is mounted to the guide member in a state of the first cable being interposed between the metal member and the guide member. The metal member is electrically connected to the ground provided on the substrate.

Description

  The present invention relates to a recording apparatus represented by a facsimile, a printer, and the like.

  Conventionally, in an inkjet printer as an example of a printer, a plurality of cables and a power cable for transmitting a control signal from a control board to a control target, such as a medium transport mechanism and a recording unit, are routed inside the printer apparatus. ing.

  For example, when a cable for transmitting a signal (hereinafter referred to as “signal cable”) and a power cable are brought close to each other, noise may be mixed into the signal due to an electromagnetic wave leaking from the power cable, and stable data transfer may be hindered. As a result, the printer may malfunction or malfunction.

  As one of countermeasures against the noise, the periphery of the signal cable is covered with a ferrite core. However, this method requires a space for attaching the ferrite core in the signal cable route routed inside the apparatus, which may increase the size of the apparatus.

  As another countermeasure method, there is a method in which a plurality of metals are made conductive through a part formed of a conductive resin material, and the noise can be removed by the impedance of the resin material (patent) Reference 1)

JP 2004-299073 A

  In this printer, a metal neutralizing brush that contacts the discharged recording paper, a neutralizing cap that is formed of a conductive resin that contacts the neutralizing brush, and a metal side plate on which the neutralizing cap is fixed by a fastening member And. The charge eliminating brush plays a role of removing charges charged on the recording paper by escaping to the ground of the printer casing. And it is described that noise can be reduced by the impedance of the static elimination cap when the static elimination cap is sandwiched on the conduction path. In addition, it is described that radiation noise emission within the housing becomes a problem.

  However, when a resin member is formed of a conductive resin, the conductive material is not necessarily uniform depending on the molding conditions of the member. And the impedance on a conductive path will change with the contact location in a resin member. And there exists a possibility that the removal of the noise in the said resin member may become unstable. In addition, the cost of the conductive resin increases because an additive for imparting conductivity to the resin material is added.

  In addition, the noise countermeasure method is to take measures to prevent noise from being emitted from the device to be used (EMI), and to have noise resistance so that the device to be used operates normally even if it receives external noise. There are two types of measures to enhance (EMC). Even when these noise countermeasures are taken, the noise varies greatly depending on the length and location of the cable. In particular, the cable length is determined by the position of the substrate. When downsizing the product, the board is often located on the back side of the device and the cable is often located on the front side of the device. Therefore, the cable length becomes long and it is easy to be affected by noise from the outside. In particular, when the cable is an FFC (flexible flat cable) connected to the recording head, there is a possibility that problems such as malfunction of the recording head and erroneous printing may occur.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a recording apparatus that can stably reduce noise in a cable routed around a downsized recording apparatus.

  In order to achieve the above object, a recording apparatus according to a first aspect of the present invention includes a control unit that controls a recording operation on a recording medium, and a carriage that is movable in a predetermined movement direction based on the control of the control unit. A first cable connected to the control unit and the carriage and crossing over at least a part of a movement area of the carriage in the predetermined movement direction; and intersecting the predetermined movement direction in the first cable And a metal member that shields at least a part of the portion that extends in the direction in which the metal plate extends.

  According to this aspect, since the first cable connected to the control unit crosses over at least a part of the carriage movement region, the first cable is passed outside the carriage movement region in the predetermined movement direction. It is not necessary to provide a space, and the size of the apparatus in the predetermined moving direction, that is, the width direction of the recording apparatus can be reduced. Furthermore, since the first cable is provided with a metal member that shields at least a part of the portion extending in a direction intersecting the predetermined moving direction of the cable, the metal member acts from the outside acting on the first cable. The noise acting on the first cable can be reduced, and malfunction of the apparatus can be prevented. Further, since noise is removed by a metal member, the cost can be reduced as compared with the case of using a resin material.

  A recording apparatus according to a second aspect of the present invention includes, in the first aspect, a guide member formed of metal that guides the first cable, and a substrate that forms the control unit. It is attached to the guide member with the first cable sandwiched between the metal member and the guide member, and the metal member is electrically connected to a ground provided on the substrate. And

  According to this aspect, the metal member is attached to the guide member with the first cable sandwiched between the metal member and the guide member, and the metal member is electrically connected to the ground provided on the substrate. Therefore, the influence of noise from the outside can be suppressed.

  A recording apparatus according to a third aspect of the present invention includes, in the second aspect, a housing and a feeding unit that feeds a medium, and the metal member has a height that intersects the predetermined movement direction. Provided in a gap between the housing and the guide member in the direction and close to the feeding portion in a portion of the first cable that is out of the carriage movement region in a direction intersecting the predetermined movement direction. It is provided in the position.

  According to this aspect, the metal member is provided at a position near the feeding portion in a portion of the first cable that is out of the carriage movement region in the direction intersecting the predetermined movement direction. Compared with the state of being arranged above the moving region, the size in the apparatus height direction can be suppressed. That is, an increase in the size of the apparatus in the apparatus height direction can be suppressed.

  The recording apparatus according to a fourth aspect of the present invention is characterized in that, in the third aspect, the metal member is provided between the feeding section and the housing in the predetermined movement direction.

  A recording apparatus according to a fifth aspect of the present invention is the recording apparatus according to the third aspect or the fourth aspect, wherein a portion of the guide member that is out of a moving region of the carriage in a direction intersecting the predetermined moving direction is the carriage. It is formed as a level difference part located in the lower part of the apparatus height direction than the part provided above the movement field of the above, and the metal member is attached to the level difference part.

  According to this aspect, since the metal member is attached to the step portion positioned below the portion provided above the carriage movement region in the apparatus height direction, the metal member is attached to the carriage movement region in the guide member. It can be made to be located on the lower side than the case where it is attached to the part provided above the apparatus, and the enlargement of the apparatus in the apparatus height direction can be suppressed.

  According to a sixth aspect of the present invention, in the fifth aspect, the recording apparatus includes a drive source that drives the carriage in the predetermined movement direction, and the step portion of the guide member is driven in the apparatus height direction. It is located above the source.

  According to this aspect, the guide member is located above the drive source that drives the carriage. That is, the guide member is located between the first cable and the drive source. As a result, the electromagnetic wave leaking from the drive source is blocked by the guide member, and the influence of noise on the electrical signal transmitted by the first cable can be suppressed.

  According to a seventh aspect of the present invention, in the recording apparatus according to any one of the second to sixth aspects, the recording apparatus includes a metal frame that forms a main body of the apparatus, and the guide member is connected to the metal frame. It is characterized by.

  According to an eighth aspect of the present invention, there is provided a recording apparatus according to the seventh aspect, wherein the metal frame includes a first frame and a second frame that are assembled together to form a main body of the apparatus. The second frame is a conductor, the guide member contacts the first frame, the second frame contacts the substrate directly or indirectly, and the metal member Is electrically connected to a ground provided on the substrate through the guide member, the first frame, and the second frame.

  According to this aspect, since the metal member is electrically connected to the ground provided on the substrate via the guide member, the first frame, and the second frame, the metal member is electrically grounded, The influence of noise on one cable can be stably reduced. In addition, by configuring the ground path of the metal member via the frame constituting the apparatus main body, it is not necessary to separately configure the ground path for the metal member, so that the configuration of the apparatus can be simplified. An increase in the size of the apparatus can be suppressed.

  In a recording apparatus according to a ninth aspect of the present invention, in any one of the second to eighth aspects, the guide member is provided at an end of the carriage movement region in the predetermined movement direction. Features.

  A recording apparatus according to a tenth aspect of the present invention is the recording apparatus according to any one of the first to ninth aspects, further comprising an operation unit that gives a command to the control unit, wherein the metal member is the operation unit in an apparatus height direction. It overlaps with at least one part of arrangement | positioning area | region of this.

  According to this aspect, since the metal member overlaps at least a part of the arrangement region of the operation unit in the apparatus height direction, the first cable, the metal member, and the operation unit are stacked and arranged in the apparatus height direction. Also, the size of the device can be reduced. Therefore, it is possible to reduce the size of the recording apparatus.

  A recording apparatus according to an eleventh aspect of the present invention is the recording apparatus according to the tenth aspect, further comprising a second cable extending from the operation unit and connected to the control unit, wherein the metal member shields the second cable. It is characterized by that.

  According to this aspect, since the metal member shields not only the first cable but also the second cable, it is not necessary to shield the first cable and the second cable with separate members. Thereby, since two cables are shielded by one member, space saving and cost reduction can be achieved.

  A recording apparatus according to a twelfth aspect of the present invention includes a control unit that controls a recording operation on a recording medium, an operation unit that gives a command to the control unit, a first cable connected to the control unit, A metal member that shields at least a part of the first cable, and the metal member overlaps at least a part of the arrangement region of the operation unit in the apparatus height direction.

  According to this aspect, since the metal member overlaps at least a part of the arrangement region of the operation unit in the apparatus height direction, the first cable, the metal member, and the operation unit are stacked and arranged in the apparatus height direction. Also, the size of the device can be reduced. Therefore, it is possible to reduce the size of the recording apparatus.

1 is an external perspective view of a recording apparatus (hereinafter referred to as a printer) according to the present invention with a cover closed. FIG. 3 is an external perspective view of a printer with a cover opened. FIG. 3 is a side cross-sectional view illustrating a conveyance path of a recording medium in the printer. The perspective view which shows the internal structure of a printer. The top view which shows the moving area | region L1 of a carriage. The perspective view which shows the edge part on the opposite side to a home position in the movement area | region L1 of the carriage in a printer. FIG. 3 is a perspective view illustrating a structure of a frame constituting the printer. The perspective view which shows the connection state of a back side main frame and a side frame. The perspective view which shows the connection state of a side frame and a control board. The perspective view which shows the edge part by the side of a home position in the movement area | region L1 of the carriage in a printer. The perspective view which looked at the internal structure of the printer from the back side. (A) is a perspective view which shows the arrangement | positioning state of the guide member and cable in the edge part on the opposite side to a home position in the movement area | region L1 of a carriage, (B) is a perspective view which shows the metal member attached to the guide member. FIG. 3 is a rear view showing a cable routing state on the back side of the printer. The top view which shows the lower surface of the apparatus main body in a printer. Sectional drawing which shows the arrangement | positioning state of the guide member and cable in the edge part on the opposite side to a home position in the movement area | region L1 of a carriage.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, about the same structure in each Example, the same code | symbol is attached | subjected and it demonstrates only in the first Example, The description of the structure is abbreviate | omitted in a subsequent Example.

  FIG. 1 is an external perspective view of a recording apparatus (hereinafter referred to as a printer) according to an embodiment of the present invention with a cover closed. FIG. 2 is an external perspective view of a printer with a cover open. 3 is a side sectional view showing a conveyance path of a recording medium in the printer, FIG. 4 is a perspective view showing an internal structure of the printer, and FIG. 5 is a plan view showing a carriage movement region L1.

  6 is a perspective view showing an end portion of the carriage moving region L1 opposite to the home position, FIG. 7 is a perspective view showing a structure of a frame constituting the printer, and FIG. 8 is a rear guide frame. FIG. 9 is a perspective view showing a connection state between the side frame and the control board. FIG. 10 is a perspective view showing a connection state between the side frame and the control board. FIG. It is a perspective view shown.

  FIG. 11 is a perspective view of the internal structure of the printer as viewed from the back side, and FIG. 12A is a perspective view showing the arrangement of the guide member and the cable at the end opposite to the home position in the carriage movement region L1. FIG. 12B is a perspective view showing the metal member attached to the guide member, FIG. 13 is a rear view showing a cable routing state on the back side of the printer, and FIG. 14 is an apparatus main body in the printer. FIG. 15 is a cross-sectional view showing the arrangement of the guide members and cables at the end opposite to the home position in the carriage movement region L1.

  In the XYZ coordinate system shown in each drawing, the X direction indicates the scanning direction of the recording head and the apparatus width direction, the Y direction indicates the depth direction of the recording apparatus and the paper transport direction, and the Z direction indicates the apparatus height direction. In each figure, the −X-axis direction is the carriage home position side, the −Y direction is the apparatus front side, and the + Y direction side is the apparatus back side.

■■■ Printer overview ■■■■■■■
Components of an ink jet printer 10 (hereinafter referred to as “printer 10”) as an example of a recording apparatus will be described with reference to FIGS. The printer 10 includes an apparatus main body 12 (see FIG. 4), a housing 14 that covers the periphery of the apparatus main body 12 and constitutes the appearance of the printer 10, and a cover that can be opened and closed with respect to the apparatus main body 12. Unit 16 and an operation unit 18 exposed to the upper part of the apparatus main body 12 when the cover unit 16 is in an open posture.

  The cover unit 16 includes a front cover unit 20 and an upper surface cover unit 22. The front cover portion 20 is attached to the upper surface cover portion 22 so as to be rotatable, and the upper surface cover portion 22 is attached to the apparatus main body 12 so as to be rotatable.

  When the cover portion 16 is closed with respect to the apparatus main body 12 (see FIG. 1), the front cover portion 20 constitutes a part of the front surface of the housing 14. Further, the upper surface cover portion 22 constitutes a part of the upper surface 14a of the housing 14 in the closed posture.

  On the other hand, when the cover portion 16 rotates in the counterclockwise direction in FIG. 2 from the device front side (−Y axis direction in FIG. 2) to the device rear side (+ Y axis direction in FIG. 2) with respect to the device body 12. The open posture shown in FIG. 2 is obtained. In this posture, the front cover portion 20 rotates with respect to the upper surface cover portion 22, and the inner surface 20 a of the front cover portion 20 and the inner surface 22 a of the upper surface cover portion 22 constitute one surface as the inner surface of the cover portion 16. In the present embodiment, when the cover unit 16 is in an open posture with respect to the apparatus main body 12 illustrated in FIG. 2, the inner surface of the cover unit 16 functions as a placement surface 16 a for the sheet P as “medium”.

  Next, as shown in FIG. 2, when the cover unit 16 changes from the closed position (see FIG. 1) to the open position, the operation unit 18 and the paper supply port 24 are exposed on the upper part of the apparatus body 12, and the apparatus A discharge port 26 is exposed on the front surface of the main body 12. The operation unit 18 includes a power button, a print setting button, a display panel, and the like for operating the printer 10.

  The paper supply port 24 supplies the paper P from the placement surface 16 a to the inside of the apparatus body 12 when the paper P is placed on the placement surface 16 a of the cover portion 16. Further, the discharge port 26 is disposed on the front side of the apparatus in a state in which the sheet P supplied into the apparatus main body 12 from the placement surface 16a through the sheet supply port 24 is recorded by a recording unit 44 described later (FIG. 2). In the -Y-axis direction side).

  Next, the components on the paper transport path will be described in more detail with reference to FIG. In FIG. 3, the right side of the paper (the back side of the apparatus) is the upstream of the feeding path, and the left side of the paper (the front side of the apparatus) is the downstream of the feeding path. Also, the broken line in FIG. 3 indicates the transport route PR of the paper P.

  On the upstream side of the feeding path, there is a paper feeding section 28 as a “feeding section” that feeds the paper to the downstream side of the feeding path from the placement surface 16 a of the cover 16 that is open to the housing 14. Is provided. The paper supply unit 28 includes a paper supply port 24, a pair of paper guides 30 provided in the paper supply port, a paper support unit 32 that supports at least a part of the paper loaded from the paper supply port 24, A feeding roller 34 provided at a position facing the paper support portion 32 is provided. The cover unit 16 and the paper support unit 32 support the paper P in an inclined posture.

  In FIG. 3, the sheet support portion 32 is formed so as to be inclined downward toward the left side of the sheet surface, that is, toward the downstream side of the conveyance path. The feeding roller 34 is configured to be able to swing in the contact / separation direction with respect to the paper P placed on the paper support 32. When the feed roller 34 is displaced in a direction approaching the paper support unit 32, the feed roller 34 contacts the uppermost paper P placed on the paper support unit 32, and feeds the uppermost paper P downstream of the feed path. To send.

  A transport unit 36 is provided on the downstream side of the paper supply unit 28. The transport unit 36 includes a transport drive roller 38 and a transport driven roller 40. The conveyance drive roller 38 is rotated by a roller drive motor 42 (see FIG. 9). The conveyance unit 36 nips the paper P fed from the paper supply unit 28 between the conveyance driving roller 38 and the conveyance driven roller 40 and conveys the paper P downstream in the conveyance direction. A recording unit 44 is provided on the downstream side of the transport unit 36.

  The recording unit 44 includes a carriage 46, a recording head 48 provided at the bottom of the carriage, and a platen 50 as a support unit that faces the recording head and supports a medium. The recording head 48 faces the medium supported by the platen 50. An ink cartridge 51 is detachably attached to the carriage 46 (see FIGS. 2 and 4). The ink cartridge 51 supplies ink to the recording head 48.

  Although not shown, a linear scale and an encoder sensor are provided on the back surface of the carriage 46 as detection means for detecting the position of the carriage 46 in the movement region L1 of the carriage 46. The linear scale is provided with a plurality of slits extending in the apparatus width direction and at regular intervals along the apparatus width direction. As the carriage 46 moves, the encoder sensor reads the slit of the linear scale and transmits the information to the control boards 52 and 53. Based on the information, the control boards 52 and 53 detect the position of the carriage 46 in the movement region L1.

  The carriage 46 is a carriage drive motor 54 (see FIG. 6) as a “drive source” controlled by control boards 52 and 53 (see FIGS. 14 and 15) as “control units” provided inside the apparatus main body 12. Are driven so as to reciprocate in the main scanning direction (the front-and-back direction in FIG. Further, the platen 50 supports the paper P from below to define the distance (gap) between the recording surface of the medium and the head surface of the recording head 48.

  A discharge unit 56 is provided on the downstream side of the recording unit 44 in the transport direction. The discharge unit 56 includes a discharge drive roller 58 and a discharge driven roller 60. The sheet P on which the recording is performed by the recording unit 44 is nipped by the discharge driving roller 58 and the discharge driven roller 60 and discharged toward the front of the apparatus from the discharge port 26 formed on the front surface of the apparatus. The discharge drive roller 58 is rotated by a roller drive motor 42 (see FIG. 9).

  In addition, the control board 52 and the control board 53 (see FIGS. 14 and 15), according to an input command from the operation unit 18, feed, transport, and discharge paper in the transport unit 36, the recording unit 44, and the discharge unit 56. The operation necessary for recording execution of the paper P in the printer 10 such as a recording operation is controlled. The control boards 52 and 53 also control the rotation of the carriage drive motor 54 (see FIG. 6) and the roller drive motor 42 (see FIG. 9). The configurations of the control board 52 and the control board 53 will be described later.

■■■ About the configuration of the main unit ■■■■
The configuration of the apparatus body 12 will be described with reference to FIGS. The routing of the cable 74 as the “first cable” and the cable 75 as the “second cable” in the apparatus main body 12 to be described later will be described in detail after the configuration of the apparatus main body 12 is described.

  The apparatus main body 12 includes a back side main frame 62 as a “first frame” and a front side main frame 64 as a “third frame”. The rear-side main frame 62 extends in the apparatus width direction (X-axis direction in FIG. 4). Further, the front main frame 64 is disposed on the front side of the apparatus with a distance from the rear main frame 62. The front main frame 64 also extends in the apparatus width direction.

  The back side main frame 62 and the front side main frame 64 are made of a metal material. In the present embodiment, it is formed of an aluminum alloy as an example. Further, a platen 50 is provided between the back side main frame 62 and the front side main frame 64 as shown in FIG.

  Further, the back side main frame 62 is provided with a guide frame 66 extending in the apparatus width direction as shown in FIG. The front main frame 64 is also provided with a guide frame 68 extending in the apparatus width direction as shown in FIG. The guide frames 66 and 68 support the carriage 46. The upper surfaces of the guide frames 66 and 68 are configured as sliding surfaces.

  Further, in the rear main frame 62, a carriage drive motor 54 (see FIG. 5) is disposed at the end (the + X axis direction side in FIG. 5) opposite to the home position side (the −X axis direction side in FIG. 5) of the carriage 46 described later. 6). A drive pulley (not shown) is attached to the carriage drive motor 54.

  Further, a driven pulley (not shown) can be driven to rotate in accordance with the rotation of a driving pulley (not shown) at the end of the rear side main frame 62 on the home position side (the −X axis direction side in FIG. 5) of the carriage 46. Is provided. A timing belt 70 is wound around the driving pulley and the driven pulley. A part of the timing belt 70 is held by the carriage 46 on the back side of the carriage 46.

  When the carriage drive motor 54 is driven based on the control of the control boards 52 and 53, a drive pulley (not shown) is driven to rotate, and the timing belt 70 is driven. As a result, the carriage 46 is supported on the guide frames 66 and 68 on the back side main frame 62 and the front side main frame 64 on the guide frames 66 and 68 in the apparatus width direction, that is, X in FIGS. 4 and 5. Slide in the axial direction.

  The carriage 46 is movable in the apparatus width direction within the range of the movement area L1 of the carriage 46 shown in FIG. Further, in the movement region L1, the end portion on the −X axis direction side (the end portion on the right side in FIG. 5) is set to the home position of the carriage 46.

  Next, referring to FIGS. 4 to 6, the position of the carriage 46 in the movement region L <b> 1 (see FIGS. 4 and 5), that is, the movement of the carriage P from the region L <b> 2 (see FIGS. 4 and 5). A guide member 72 is provided at the end of the region L1 opposite to the home position side. The guide member 72 extends in the apparatus depth direction, is bent to the lower side (−Z axis direction) in the apparatus height direction on the front side (−Y axis direction side) of the apparatus body 12, and is attached to the front side main frame 64. Yes.

  Further, as shown in FIG. 8, a part of the guide member 72 is bent and attached to the back side main frame 62 so as to come into contact with the back side main frame 62. Further, the guide member 72 extends to the back side (+ Y axis direction side) of the apparatus main body 12 through the apparatus height direction upper side (+ Z axis direction side) of the carriage drive motor 54 attached to the back side main frame 62. ing. In this embodiment, the guide member 72 is made of a metal material in order to reduce the influence of static electricity or the like. In this embodiment, the guide member 72 is made of an aluminum alloy for weight reduction.

  Since the guide member 72 connects the back-side main frame 62 and the front-side main frame 64, the back-side main frame 62 and the front-side main frame 64 support each other via the guide member 72, and rigidity is improved. To increase. Therefore, the guide member 72 can reinforce the back side main frame 62 and the front side main frame 64.

  Further, the upper surface of the guide member 72 is configured as a guide surface 72a for arranging and guiding a cable 74 described later. Further, a bent portion 76 extending along the apparatus depth direction is provided at a part of the guide member 72, that is, at the end portion on the home position side. The bent portion 76 protrudes upward from the guide surface 72 a and functions as a guide for the cable 74. Further, since the guide member 72 is formed as a plate-like member, the bent portion 76 provided at the end on the home position side also functions as a reinforcing portion that reinforces the guide member 72.

  Further, as shown in FIG. 6, the guide member 72 extends toward the rear side of the apparatus up to a position deviated from the moving region L1 of the carriage 46 in the apparatus depth direction. A portion of the guide member 72 that is out of the moving region L1 of the carriage 46 in the apparatus depth direction is located above (+ Z axis direction side) the carriage drive motor 54 that drives the carriage 46. That is, the guide member 72 is located between the cable 74 and the carriage drive motor 54 described later. As a result, the electromagnetic wave leaking from the carriage drive motor 54 is blocked by the guide member 72, and the influence of noise on the electrical signal transmitted by the cable 74 can be suppressed.

  Further, as shown in FIGS. 6 and 12B, the position of the guide member 72 that is out of the movement region L1 of the carriage 46 in the apparatus depth direction is a portion located above the movement region L1 of the carriage 46, that is, the guide surface 72a. It is located below in the apparatus height direction. That is, a portion of the guide member 72 that is out of the movement region L1 of the carriage 46 is formed as a stepped portion 72b that is positioned below the guide surface 72a that is positioned above the movement region L1 of the carriage 46 in the apparatus height direction. Yes.

  Further, as shown in FIG. 6, a metal member 78 is attached to the stepped portion 72 b of the guide member 72 by a fastening member 80. In this embodiment, the fastening member 80 is configured as a screw. The metal member 78 is attached to the guide member 72 so as to shield the cable 74 disposed on the guide member 72 (see FIG. 12B).

  That is, since the metal member 78 is attached to the stepped portion 72b positioned below the guide surface 72a provided above the moving region of the carriage 46 in the apparatus height direction, the metal member 78 is guided by the guide member 72. The position of the metal member 78 in the apparatus height direction can be positioned on the lower side than the case where the metal member 78 is attached to the surface 72a, and the enlargement of the printer 10 in the apparatus height direction can be suppressed.

  The metal member 78 is configured as a plate-like member as a whole and is formed of a metal material. In the present embodiment, it is formed of an aluminum alloy as an example. The metal member 78 extends in the apparatus depth direction, and both end portions in the apparatus depth direction are bent upward in the apparatus height direction. That is, since both end portions of the metal member 78 in the apparatus depth direction escape upward, the possibility of damaging the cable 74 can be suppressed.

  The home position side in the apparatus width direction is also bent upward in the apparatus height direction at the center of the metal member 78 in the apparatus depth direction. This bent portion can suppress the possibility of damaging a cable 75 (described later) that passes from the operation portion 18 below the metal member 78.

  12B, hooks 79 are formed on both sides of the central portion on the home position side of the metal member 78 in the apparatus width direction. When the metal member 78 is attached to the guide member 72, the guide member 72 is attached. It is comprised so that it may fit. Further, a portion of the metal member 78 opposite to the home position side in the apparatus width direction is bent downward in the apparatus height direction and is configured to be attached to the guide member 72 by a fastening member 80.

  In this embodiment, the guide member 72 and the metal member 78 are both made of a metal material, and the metal member 78 is attached to the guide member 72 by the fastening member 80 or guided by the hook 79 formed on the metal member 78. By fitting with the member 72, the guide member 72 and the metal member 78 can be brought into contact with each other to achieve conduction.

Next, the side frame 82 as the “second frame” will be described with reference to FIGS. 6 to 9. The side frame 82 is disposed at the end of the apparatus main body 12 opposite to the home position side in the apparatus width direction (the + X axis direction side in FIGS. 6 and 7).
The side frame 82 extends from the front side of the apparatus to the rear side of the apparatus in the apparatus depth direction, and is attached to the rear main frame 62 by a fastening member 84 (see FIG. 8). In this embodiment, the fastening member 84 is configured as a screw.

  Further, the side frame 82 is provided with a roller drive mechanism 86 composed of a plurality of gears. The roller drive mechanism 86 is located on the apparatus bottom surface side (the −Z-axis direction side in FIG. 6) at the end opposite to the home position in the apparatus width direction (the end on the + X-axis direction side in FIG. 6).

  Further, as shown in FIG. 9, on the back side of the apparatus main body 12 (+ Y axis direction side in FIG. 9), a roller drive motor 42 is provided at the end opposite to the home position in the apparatus width direction (end on the + X axis direction side). Is provided.

  The roller drive mechanism 86 uses a gear 88a attached to the drive shaft of the roller drive motor 42 to drive the drive force of the roller drive motor 42 provided on the back side of the apparatus main body 12 (+ Y-axis direction side in FIG. 9). The conveyance driving roller 38 is driven by being transmitted to the gear 88b that drives the conveyance driving roller 38 via the gear. Furthermore, the driving force of the roller driving motor 42 is transmitted from the gear 88b to the gear 88c located on the front surface side (the −Y-axis direction side in FIG. 5) of the apparatus main body 12 via a plurality of gears to drive the discharge driving roller 58. .

  That is, the roller drive mechanism 86 is configured as a power transmission mechanism that transmits the power of the roller drive motor 42 to the transport drive roller 38 and the discharge drive roller 58 that are transport means for transporting the paper P.

Further, a connection member 90 is provided on the side frame 82 on the rear side of the apparatus in the apparatus depth direction. The connection member 90 is made of a metal material. The connection member 90 is configured to electrically connect the side frame 82 and the control board 53. In particular,
One end of the connection member 90 is attached to the side frame 82 by a fastening member 92, and the other end is attached to the control board 53 by a fastening member 94. In this embodiment, the fastening members 92 and 94 are configured as screws.

  Here, the control board 52 and the control board 53 will be described. The control board 52 and the control board 53 include a plurality of electronic components, and are configured as a control unit in the printer 10. The control board 52 is arranged on the bottom surface of the apparatus main body 12 as shown in FIG. On the other hand, the control board 53 is provided at the end on the back side of the apparatus main body 12 as shown in FIGS. 9, 11, and 14. The control board 52 and the control board 53 are electrically connected. Although not shown, at least one of the control board 52 and the control board 53 is provided with a ground. The control board 52 and the control board 53 can be grounded via the ground.

  6, 8, and 9 again, the metal member 78 is in contact with the guide member 72, the guide member 72 is in contact with the back side main frame 62, and the back side main frame 62 is the side frame 82. In contact with. The side frame 82 is in contact with the control board 53 via the connection member 90. Therefore, the metal member 78 is electrically connected to the control board 53 via the guide member 72, the back side main frame 62, the side frame 82, and the connection member 90. Thereby, the metal member 78 is grounded (grounded) by the ground (not shown) of the control board 52 or the control board 53.

  That is, since the metal member 78 is electrically connected to the ground provided on the control boards 52 and 53 via the guide member 72, the back side main frame 62, and the side frame 82, the metal member 78 is electrically grounded. Thus, the influence of noise on the cable 74 can be stably reduced. In addition, since the ground path of the metal member 78 is configured via the back-side main frame 62 constituting the apparatus main body 12, there is no need to separately configure the ground path for the metal member 78. Can be simplified and an increase in the size of the printer 10 can be suppressed.

■■■ Cable routing ■■■■
<<< Cable routing from carriage to control board >>>
Next, the routing of the cable 74 and the cable 75 in the apparatus main body 12 will be described with reference to FIGS. The cable 74 is configured as an FFC (flexible flat cable) that transmits and receives control signals and data between the carriage 46 and the control board 52. That is, one end of the cable 74 is connected to the carriage 46 and the other end is connected to the control board 52.

  In the present embodiment, the other end of the cable 75 is divided into three and each is connected to the control board 52. Of the three other ends of the cable 75, the first other end transmits and receives a control signal of a linear encoder (not shown) between the carriage 46 and the control board 52, and the second other end controls the carriage 46. The recognition signal of the ink cartridge 51 that is detachably attached to the carriage 46 is transmitted to and received from the substrate 52, and the control signal of the recording head 48 is transmitted and received between the carriage 46 and the control substrate 52 at the third other end. Do.

  The cable 75 is configured as an FFC (flexible flat cable) that transmits and receives control signals and data between the operation unit 18 and the control board 52. That is, one end of the cable 75 is connected to the operation unit 18 and the other end is connected to the control board 52.

  First, the routing of the cable 74 when the carriage 46 is positioned at the end on the home position side (the end on the −X axis direction side in FIG. 10) in the movement region L1 will be described. Referring to FIG. 10, one end of a cable 74 is connected to the rear side of the carriage 46 (the + Y axis direction side in FIG. 10). The cable 74 extending from the rear side extends along the end of the carriage 46 on the home position side (end on the −X axis direction side in FIG. 10) from the rear side (+ Y axis direction side) in the apparatus depth direction to the front side (−Y (Axial direction side).

  The cable 74 routed to the front side (−Y-axis direction side) of the carriage 46 is, as shown in FIG. 11, along the back surface of the front-side main frame 64 in the device width direction (−X axis in FIG. 11). From the direction side) toward the end opposite to the home position (the end on the + X-axis direction side in FIG. 11).

  Here, as shown in FIG. 11, a plurality of hooks 96 are provided on the back surface of the front-side main frame 64. In the present embodiment, the hooks 96 are provided at the center in the apparatus width direction and the end opposite to the home position (the end on the + X-axis direction side in FIG. 11) on the back surface of the front main frame 64, respectively. . The hook 96 hooks the cable 74 to the back surface of the front main frame 64.

  Next, as shown in FIG. 5, the carriage 46 moves in the apparatus width direction, for example, the home position direction side end (−X axis direction side in FIG. 5) to the opposite end (+ X axis direction in FIG. 5). When the carriage 74 moves in the apparatus width direction, the cable 74 moves in the movement area of the carriage 46 with the hook 96 disposed at the center in the apparatus width direction on the back of the front main frame 64 as a fulcrum. It follows the movement of the carriage 46 while curving in L1.

  That is, as shown in FIG. 5, in the cable 74 hooked on the back surface of the front-side main frame 64, the portion between the hook 96 arranged at the center in the apparatus width direction on the back surface and the end portion on the home position side is Since it can be separated from the rear side to the rear side of the apparatus in the apparatus depth direction, it can be curved in the movement region L1 of the carriage 46 with the movement of the carriage 46, and can follow the movement of the carriage 46.

  Next, as shown in FIGS. 11 and 12 (A), at the end opposite to the home position of the front-side main frame 64 (the + X-axis direction side end in FIGS. 11 and 12A), the cable 74 is The front main frame 64 is folded from the back side to the front side. The cable 74 folded back to the front surface side of the front main frame 64 is bent upward in the apparatus height direction and extends along the guide member 72 to the guide surface 72a.

  Further, the cable 74 is routed to the back side of the apparatus along the guide surface 72a by changing the direction to the back side in the apparatus depth direction on the guide surface 72a of the guide member 72. The cable 74 is affixed to the guide surface 72a of the guide member 72 with an adhesive member (not shown). Further, the bent portion 76 guides the cable 74 on the guide surface 72a along the apparatus depth direction.

  Next, the cable 74 extending along the guide surface 72a of the guide member 72 passes below the metal member 78 attached to the guide member 72 at a position deviated from the movement region L1 of the carriage 46 in the apparatus depth direction. That is, the cable 74 is sandwiched between the guide member 72 and the metal member 78 in the apparatus height direction. Thereby, the upper surface side of the cable 74 is shielded by the metal member 78, and the lower surface side of the cable is shielded by the guide member 72.

  Further, since the metal member 78 is attached to the guide member 72 with the cable 74 sandwiched between the metal member 78 and the guide member 72, fluttering and vibration of the cable 74 can be suppressed. The influence of noise associated with vibration can be suppressed. Moreover, since the metal member 78 is electrically connected to the ground provided on the control boards 52 and 53, the influence of noise from the outside can be suppressed.

  Next, referring to FIG. 13 and FIG. 14, the end portion on the opposite side to the home position in the apparatus width direction of the printer 10 (the end portion on the + X axis direction side in FIG. 13) and the rear side (Y in FIG. 11A). The cable 74 routed to the axial direction side changes direction here and extends to the home position side in the apparatus width direction (−X axis direction side in FIG. 13). Then, the cable 74 changes its direction again at the central portion in the apparatus width direction of the printer 10 toward the lower side in the apparatus height direction of the printer 10, that is, the −Z axis direction side, and moves toward the lower surface side of the printer 10. As shown in FIG. 14, the other end of the cable 74 is connected to a control board 52 provided on the lower surface of the printer 10.

  11, FIG. 12A, FIG. 13 and FIG. 14, the operation unit 18 is provided on the apparatus rear side of the rear main frame 62 in the apparatus depth direction (+ Y axis in FIG. 11 and FIG. 12A). (Direction side). The cable 75 having one end connected to the end of the operation unit 18 on the opposite side to the home position in the apparatus width direction (the end on the + X-axis direction side in FIG. 11) extends from the operation unit 18 to the opposite side of the home position. It extends toward the upper surface of the guide member 72. The cable 75 is drawn between the guide member 72 and the metal member 78 in the apparatus height direction.

  The routing of the cable 75 from the guide member 72 to the control board 52 is the same as that of the cable 74, and thus the description thereof is omitted. The other end of the cable 75 is connected to the control board 52.

  That is, in this embodiment, the cable 74 connected to the control board 52 crosses over at least a part of the movement area L1 of the carriage 46, and therefore the movement area L1 of the carriage 46 in the apparatus width direction which is a predetermined movement direction. Since it is not necessary to provide a space through which the cable 74 passes outside, it is possible to reduce the size of the apparatus in a predetermined movement direction, that is, in the width direction of the recording apparatus. Further, since the cable 74 includes a metal member 78 that shields at least a part of the cable 74 in a portion extending in the apparatus depth direction that intersects the predetermined movement direction of the cable 74, the metal member 78 is attached to the cable 74. The noise from the outside which acts can be interrupted, the noise which acts on the cable 74 can be reduced stably, and the malfunction of the apparatus can be prevented. Further, since noise is removed by the metal member 78, the cost can be reduced as compared with the case of using a resin material.

  In the present embodiment, since the metal member 78 shields not only the cable 74 but also the cable 75, there is no need to shield the cable 74 and the cable 75 with separate members. Thereby, since the two cables 74 and 75 are shielded by one member, space can be saved and cost can be reduced.

■■■ About the layout of guide members and metal members in the main unit ■■■■
With reference to FIG. 15, the positional relationship between the operation unit 18, the guide member 72, and the metal member 78 will be described. The operation unit 18 is disposed so as to be exposed on the upper surface of the apparatus main body 12 when the cover unit 16 is opened with respect to the apparatus main body 12 in the apparatus main body 12 (see FIG. 2). Therefore, the operation unit 18 is located on the upper side in the apparatus height direction in the apparatus main body 12. In the present embodiment, in the apparatus height direction, the guide member 72, the metal member 78, and the cables 74 and 75 sandwiched between the guide member 72 and the metal member 78 are configured such that at least a part of the arrangement region of the operation unit 18 overlaps. Is arranged.

  That is, since the metal member 78 overlaps at least a part of the arrangement region of the operation unit 18 in the apparatus height direction, the cables 74 and 75 shielded by the metal member 78 in the apparatus height direction, the metal member 78, The size of the apparatus in the apparatus height direction can be made smaller than arranging the operation unit 18 in a stacked manner. Therefore, the size of the printer 10 can be reduced.

<<< Example of change of embodiment >>>
(1) In the present embodiment, the side frame 82 and the control board 53 are configured to contact each other via the connecting member 90, that is, indirectly. However, instead of this configuration, the side frame 82 and the control board 53 are directly connected. It is good also as a structure made to contact.
(2) In this embodiment, the metal member 78 is attached to the stepped portion 72b of the guide member 72. However, the metal member 78 may be attached to the guide surface 72a to shield the cable 74, or the front side main It is good also as a structure which shields the cable 74 attached to the back surface of the flame | frame 64 and routed by the said back surface.
(3) In this embodiment, the guide member 72 and the metal member 78 are configured separately and the metal member 78 is attached to the guide member 72. Instead of this configuration, the guide member 72 is bent. The cables 74 and 75 may be shielded.

  To summarize the above description, the printer 10 according to the present exemplary embodiment has control boards 52 and 53 that control the recording operation on the paper P, and a predetermined movement direction in the apparatus width direction based on the control of the control boards 52 and 53. A movable carriage 46, a cable 74 connected to the control boards 52, 53 and the carriage 46, crossing over at least a part of the movement area of the carriage 46 in the apparatus width direction, and a predetermined movement direction of the cable 74 And a metal member 78 that shields at least a part of the cable 74 at a portion extending in the apparatus depth direction that is an intersecting direction.

  The printer 10 includes a guide member 72 made of metal that guides the cable 74 and control boards 52 and 53 that form the control unit. The metal member 78 is interposed between the metal member 78 and the guide member 72. The metal member 78 is electrically connected to the ground provided on the control boards 53, 53.

  The printer 10 also includes a housing 14 and a paper supply unit 28 that feeds paper. The metal member 78 is provided in a gap between the housing 14 and the guide member 72 in the apparatus height direction that intersects the predetermined movement direction, and in the apparatus depth direction that is a direction that intersects the predetermined movement direction in the cable 74. It is provided at a position near the paper supply unit 28 at a portion outside the moving area of the carriage 46. Therefore, the dimension in the apparatus height direction can be suppressed as compared with the state in which the metal member 78 is disposed above the moving region of the carriage 46. That is, an increase in size of the printer 10 in the apparatus height direction can be suppressed.

  In the printer 10, the metal member 78 is provided between the paper supply unit 28 and the housing 14 in the apparatus width direction that is a predetermined movement direction.

  In the printer 10, the part of the guide member 72 that is out of the movement area L 1 of the carriage 46 in the apparatus depth direction that intersects the predetermined movement direction is a part that is provided above the movement area of the carriage 46. It is formed as a stepped portion 72b positioned below the surface 72a in the apparatus height direction. A metal member 78 is attached to the stepped portion 72b.

  The printer 10 also includes a carriage drive motor 54 that drives the carriage 46 in the apparatus width direction, which is a predetermined movement direction. The stepped portion 72b of the guide member 72 is located above the carriage drive motor 54 in the apparatus height direction.

  Further, the printer 10 includes metal frames 62 and 82 that form the apparatus main body 12, and the guide member 72 is connected to the metal frames 62 and 82.

  In the printer 10, the metal frames 62 and 82 include a back side main frame 62 and a side frame 82 that are assembled together to form the apparatus main body 12. The guide member 72 is in contact with the back main frame 62, and the side frame 82 is in direct or indirect contact with the control board 53. The metal member 78 is electrically connected to the ground provided on the control board 53 via the guide member 72, the back side main frame 62 and the side frame 82.

  In the printer 10, the guide member 72 is provided at the end of the movement region L <b> 1 of the carriage 46 in the apparatus width direction, which is a predetermined movement direction. Further, the printer 10 includes an operation unit 18 that gives commands to the control boards 52 and 53 that are control units. The metal member 78 overlaps at least a part of the arrangement area of the operation unit 18 in the apparatus height direction.

  The printer 10 includes a cable 75 that extends from the operation unit 18 and is connected to a control board 52 that is a control unit. The metal member 78 also shields the cable 75.

  The printer 10 includes control boards 52 and 53 that control a recording operation on a recording medium, an operation unit 18 that gives commands to the control boards 52 and 53, a cable 74 connected to the control board 52, and at least one of the cables 74. And a metal member 78 for shielding a part thereof. The metal member 78 overlaps at least a part of the arrangement area of the operation unit 18 in the apparatus height direction.

In this embodiment, the metal member 78 according to the present invention is applied to an ink jet printer as an example of a recording apparatus. However, the present invention can be applied to other liquid ejecting apparatuses in general.
Here, the liquid ejecting apparatus uses an ink jet recording head, and is not limited to a recording apparatus such as a printer, a copier, and a facsimile machine that discharges ink from the recording head to perform recording on a recording medium. And a device for ejecting a liquid corresponding to the application from a liquid ejecting head corresponding to the ink jet recording head to an ejected medium corresponding to the recording medium, and attaching the liquid to the ejected medium.

  In addition to the recording head, as a liquid ejecting head, a color material ejecting head used for manufacturing a color filter such as a liquid crystal display, and an electrode material (conductive paste) used for forming an electrode such as an organic EL display or a surface emitting display (FED) Examples thereof include an ejection head, a bioorganic matter ejection head used for biochip production, and a sample ejection head as a precision pipette.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

10 printer, 12 apparatus main body, 14 housing, 14a upper surface, 16 cover part,
16a mounting surface, 18 operation unit, 20 front cover unit, 20a inner surface,
22 upper surface cover portion, 22a inner surface, 24 paper supply port, 26 discharge port,
28 Paper supply section, 30 Paper guide, 32 Paper support section, 34 Feed roller,
36 transport section, 38 transport drive roller, 40 transport driven roller,
42 roller drive motor, 44 recording unit, 46 carriage, 48 recording head,
50 platen, 51 ink cartridge, 52, 53 control board,
54 Carriage drive motor, 56 discharge section, 58 discharge drive roller,
60 discharge driven roller, 62 back side main frame, 64 front side main frame,
66, 68 guide frame, 70 timing belt, 72 guide member,
72a guide surface, 72b stepped portion, 74, 75 cable, 76 bent portion,
78 Metal member, 79, 96 Hook, 80, 84, 92, 94 Fastening member,
82 side frame, 86 roller drive mechanism, 88a, 88b, 88c gear,
90 connecting member, L1 moving area, L2 paper P transport area, P paper,
PR transport route

Claims (12)

A control unit for controlling the recording operation on the recording medium;
A carriage movable in a predetermined movement direction based on the control of the control unit;
A first cable connected to the control unit and the carriage and crossing over at least a part of a movement area of the carriage in the predetermined movement direction;
A metal member that shields at least a part of a portion extending in a direction intersecting the predetermined moving direction in the first cable;
Comprising
A recording apparatus. The recording apparatus according to claim 1, wherein a guide member made of metal that guides the first cable;
A substrate forming the control unit;
With
The metal member is attached to the guide member with the first cable sandwiched between the metal member and the guide member, and the metal member is electrically connected to a ground provided on the substrate. Yes,
A recording apparatus. The recording apparatus according to claim 2,
A housing,
A feeding unit for feeding a medium;
With
The metal member is provided in a gap between the housing and the guide member in a device height direction that intersects the predetermined movement direction, and a direction that intersects the predetermined movement direction in the first cable. Provided at a position near the feeding portion at a portion deviating from the carriage movement region in
A recording apparatus. The recording apparatus according to claim 3, wherein the metal member is provided between the feeding unit and the housing in the predetermined movement direction.
A recording apparatus. 5. The recording apparatus according to claim 3, wherein a portion of the guide member that is out of a movement area of the carriage in a direction intersecting the predetermined movement direction is provided above the movement area of the carriage. Formed as a stepped portion located below in the apparatus height direction than the portion,
The metal member is attached to the stepped portion,
A recording apparatus. The recording apparatus according to claim 5, further comprising a drive source that drives the carriage in the predetermined movement direction.
The step portion of the guide member is located above the drive source in the apparatus height direction.
A recording apparatus. The recording apparatus according to any one of claims 2 to 6, further comprising a metal frame that forms the apparatus body,
The guide member is connected to the metal frame;
A recording apparatus. The recording apparatus according to claim 7, wherein the metal frame includes a first frame and a second frame that are assembled together to form a main body of the apparatus.
The guide member contacts the first frame;
The second frame directly or indirectly contacts the substrate;
The metal member is electrically connected to a ground provided on the substrate via the guide member, the first frame, and the second frame.
A recording apparatus. 9. The recording apparatus according to claim 2, wherein the guide member is provided at an end of a movement area of the carriage in the predetermined movement direction.
A recording apparatus. The recording apparatus according to any one of claims 1 to 9, further comprising an operation unit that gives a command to the control unit,
The metal member overlaps at least a part of an arrangement region of the operation unit in a device height direction;
A recording apparatus. The recording apparatus according to claim 10, further comprising a second cable extending from the operation unit and connected to the control unit,
The metal member shields the second cable;
A recording apparatus. A control unit for controlling the recording operation on the recording medium;
An operation unit for giving a command to the control unit;
A first cable connected to the control unit;
A metal member that shields at least a portion of the first cable;
With
The metal member overlaps at least a part of an arrangement region of the operation unit in a device height direction;
A recording apparatus.

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