Image reading device, recording device
By configuring the flexible flat cable to overlap with the drive unit at the end of its movement, the device addresses the issue of increased height due to vertical separation, achieving compactness and preventing cable-contact issues in image reading devices with integrated scanner and printer units.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- SEIKO EPSON CORP
- Filing Date
- 2024-11-15
- Publication Date
- 2026-05-27
AI Technical Summary
The vertical separation of a flexible flat cable and a drive unit to avoid contact leads to an increased height dimension in image reading devices, particularly in devices with a scanner unit and a printer unit, such as inkjet printers.
The image reading device incorporates a configuration where the flexible flat cable forms a folded portion between holding portions and driven pulleys, allowing it to overlap with the drive unit when the reading unit is at the end of its movement, eliminating the need for significant vertical separation and reducing the device's height.
This configuration prevents contact between the flexible flat cable and the drive unit while minimizing the device's vertical dimension, thereby optimizing space utilization and reducing overall height.
Smart Images

Figure 2026087031000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to an image reading device that reads an image of a document. The present invention also relates to a recording device that performs recording on a medium.
Background Art
[0002] Some recording devices typified by inkjet printers have both a printer unit and a scanner unit as shown in Patent Document 1. The scanner unit shown in Patent Document is a flatbed type and includes a document table glass and a sensor unit that moves parallel to the document table glass. A first driven pulley and a second driven pulley are arranged at both ends in the scanning direction of the sensor unit, and a drive pulley and a third driven pulley are arranged between the first driven pulley and the second driven pulley in the scanning direction. A belt is wound around each of the above pulleys. The sensor unit is fixed to the belt.
[0003] A flexible flat cable is connected to the sensor unit. The flexible flat cable moves as the sensor unit moves. A motor holder is arranged below the moving area of the flexible flat cable, and a motor, a drive pulley, and a third driven pulley are arranged on the motor holder. The motor holder is covered by a motor cover. The motor holder is covered by the motor cover in order to prevent the flexible flat cable that moves together with the sensor unit from contacting the drive unit including the motor and the drive pulley. That is, the flexible flat cable and the drive unit need to be vertically separated greatly to avoid contact.
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Summary of the Invention
[0005] As mentioned above, the flexible flat cable and the drive unit need to be separated significantly in the vertical direction to avoid contact, which leads to an increase in the height dimension of the device. [Means for solving the problem]
[0006] To solve the above problems, the present invention provides an image reading device comprising: a document table on which a document is placed; a reading unit having a shape extending along a first axis and moving along a second axis intersecting the first axis to read a document placed on the document table; a drive unit including a motor that is the power source for the movement of the reading unit and a drive pulley driven by the motor; a plurality of driven pulleys that can be rotated by the drive pulley; an endless belt wrapped around the drive pulley and the plurality of driven pulleys, which pulls the reading unit as the motor rotates; and a case that constitutes the base of the device. The device comprises a case having a housing recess for housing the drive unit, a flexible flat cable that curves between a first holding portion provided in the case and a second holding portion provided in the reading portion to form a folded portion, the plurality of driven pulleys include a first driven pulley, a second driven pulley, and a third driven pulley, the straight line connecting the rotation axis center of the first driven pulley and the rotation axis center of the second driven pulley is along the first axis, one of the directions along the first axis is designated as the first direction, and the direction opposite to the first direction is The second direction is defined as the third direction, one of the directions along the second axis is defined as the third direction, and the direction opposite to the third direction is defined as the fourth direction. The second driven pulley is located in the third direction relative to the first driven pulley in the view of the second axis, the third driven pulley is located in the first direction relative to the second driven pulley in the view of the first axis, and is also located in the fourth direction relative to the second driven pulley in the view of the second axis, the drive unit is located in the first direction relative to the third driven pulley in the view of the first axis, and the drive pulley is located in the second direction relative to the second driven pulley in the view of the second axis. The drive unit is positioned in the fourth direction relative to the pulley, and when the reading unit is located at the end of the moving area in the third direction, at least a part of the drive unit is positioned to overlap with the reading unit when viewed from the direction normal to the document glass, the section of the endless belt between the first driven pulley and the third driven pulley is defined as the first belt section, the first holding portion, the second holding portion, and the flexible flat cable are positioned in the first direction relative to the first belt section in view of the first axis, and the folded portion of the flexible flat cable is,The reading unit is positioned at the end of the third direction in the moving region, and when the reading unit is positioned at the end of the third direction in the moving region, the flexible flat cable and the drive unit overlap when viewed from the normal direction, and the overlap between the flexible flat cable and the drive unit is eliminated when the reading unit moves from the end of the third direction in the moving region to the fourth direction.
[0007] Furthermore, the recording device of the present invention is characterized by comprising a recording unit having a recording section for recording on a medium, and an image reading device that is rotatably connected to the recording unit and can be switched between a closed state that covers the upper part of the recording unit and an open state that opens the upper part of the recording unit by rotation. [Brief explanation of the drawing]
[0008] [Figure 1] External perspective view of the printer. [Figure 2] External perspective view of the printer with the document cover open. [Figure 3] External perspective view of a printer with the scanner unit open. [Figure 4] External perspective view of the printer with the media tray pulled out and the media support opened. [Figure 5] A perspective view of the recording unit with the casing removed. [Figure 6A] A plan view of the recording unit with the casing removed. [Figure 6B] A diagram showing the positional relationships of some of the components of Figure 6A. [Figure 7] A diagram showing the media transport path in the recording unit. [Figure 8] Cross-sectional view of the main components of the printer. [Figure 9] A plan view of the inside of the scanner unit. [Figure 10] A perspective view of the scanner unit from below. [Figure 11] Perspective view of the drive unit. [Figure 12] Perspective view of the drive unit. [Figure 13] - Perspective view of the reading unit and drive unit located at the X-direction end. [Figure 14] Perspective view of the printer unit, drive unit, and endless belt. [Figure 15] Enlarged view of the main part of Figure 14. [Figure 16] A perspective view of a portion of the sensor carriage, seen from below. [Modes for carrying out the invention]
[0009] The present invention will be described in general terms below. The first embodiment of the image reading device includes a document table on which a document is placed, a reading unit having a shape extending along a first axis and moving along a second axis intersecting the first axis to read a document placed on the document table, a drive unit including a motor which is the power source for the movement of the reading unit and a drive pulley driven by the motor, a plurality of driven pulleys which are driven to rotate, an endless belt which is wrapped around the drive pulley and the plurality of driven pulleys and pulls the reading unit as the motor rotates, and a case which constitutes the base of the device, The device comprises a case having a housing recess for housing the drive unit, a flexible flat cable that curves between a first holding portion provided in the case and a second holding portion provided in the reading unit to form a folded portion, the plurality of driven pulleys include a first driven pulley, a second driven pulley, and a third driven pulley, the straight line connecting the rotation axis center of the first driven pulley and the rotation axis center of the second driven pulley is along the first axis, one direction along the first axis is designated as the first direction, and the direction opposite to the first direction is designated as the second direction The second driven pulley is positioned in the third direction relative to the first driven pulley in the second axis, the third driven pulley is positioned in the first direction relative to the second driven pulley in the first axis, and is also positioned in the fourth direction relative to the second driven pulley in the second axis, the drive unit is positioned in the first direction relative to the third driven pulley in the first axis, and the drive pulley is positioned in the second direction relative to the second driven pulley in the second axis - is located in the fourth direction relative to the first, and when the reading unit is located at the end of the moving area in the third direction, at least a part of the drive unit is located in a position that overlaps with the reading unit when viewed from the direction normal to the document glass, the section of the endless belt between the first driven pulley and the third driven pulley is defined as the first belt section, the first holding portion, the second holding portion, and the flexible flat cable are located in the first direction relative to the first belt section in view of the first axis, and the folded portion of the flexible flat cable is,When the reading unit is located at the end in the third direction in the moving region, it becomes the closest to the reading unit. When the reading unit is located at the end in the third direction in the moving region, as viewed from the normal direction, the flexible flat cable and the driving unit overlap. When the reading unit moves in the fourth direction from the end in the third direction in the moving region, the overlap between the flexible flat cable and the driving unit is eliminated.
[0010] Due to the arrangement relationship between the driving unit and the flexible flat cable, there may be a configuration in which the flexible flat cable and the driving unit overlap as viewed from the normal direction. In this case, in order to prevent the flexible flat cable and the driving unit from contacting each other, it is necessary to greatly separate the flexible flat cable and the driving unit in the vertical direction. This is because the flexible flat cable tends to hang vertically downward under the influence of gravity. However, if the flexible flat cable and the driving unit are greatly separated in the vertical direction, it will cause an increase in the height dimension of the device.
[0011] Here, the folded-back portion of the flexible flat cable is more likely to hang vertically downward as it moves away from the reading unit, that is, the second holding portion. Therefore, if the driving unit is located below the folded-back portion in such a state, the folded-back portion and the driving unit are likely to come into contact. For this reason, it is necessary to greatly separate the flexible flat cable and the driving unit in the vertical direction, which causes an increase in the height dimension of the device.
[0012] According to this aspect, when the folded-back portion of the flexible flat cable is located at the end in the third direction in the moving region of the reading unit, it is closest to the reading unit, that is, the second holding portion. Therefore, in this state, it is difficult for the folded-back portion to hang vertically downward. And in this state, when viewed from the normal direction, the flexible flat cable and the driving unit overlap. Therefore, it is not necessary to greatly separate the flexible flat cable and the driving unit in the vertical direction, and an increase in the height dimension of the device can be suppressed. When the reading unit moves from the end in the third direction in the moving region to the fourth direction in this state, the overlap is eliminated. Therefore, contact between the flexible flat cable and the driving unit can be suppressed.
[0013] The second aspect is an aspect dependent on the first aspect. A section between the third driven pulley and the driving pulley is defined as a second belt section, a section between the driving pulley and the second driven pulley is defined as a third belt section, and a section between the second driven pulley and the first driven pulley is defined as a fourth belt section. The first belt section extends along the second axis, and when the reading unit is located at the end in the third direction in the moving region, the entire area of the second belt section overlaps with the reading unit when viewed from the normal direction.
[0014] According to this aspect, since the first belt section extends along the second axis and the entire area of the second belt section overlaps with the reading unit when the reading unit is located at the end in the third direction in the moving region, when viewed from the normal direction, it is difficult for the first belt section and the second belt section to overlap with the moving region of the flexible flat cable. Thereby, contact between the flexible flat cable and the endless belt can be suppressed.
[0015] A third embodiment is an embodiment dependent on the second embodiment, characterized in that when the reading unit is located at the end in the third direction in the moving region, a part of the flexible flat cable and a part of the third belt section overlap when viewed from the normal direction.
[0016] According to this embodiment, when the reading unit is located at the end of the third direction in the moving area, the flexible flat cable and a part of the third belt section overlap when viewed from the normal direction. However, in this state, as described above, the flexible flat cable is not likely to hang down vertically, so contact between the flexible flat cable and the third belt section can be suppressed.
[0017] A fourth embodiment is an embodiment dependent on the second embodiment, characterized in that when the reading portion is located at the end of the third direction in the moving region, a part of the drive pulley and a part of the reading portion overlap when viewed from the normal direction, and the reading portion is formed with a relief portion that avoids the drive pulley or the fixing member that fixes the drive pulley when the reading portion is located at the end of the third direction in the moving region.
[0018] According to this embodiment, when the reading portion is located at the end of the third direction in the moving region, a part of the drive pulley and a part of the reading portion overlap when viewed from the normal direction, and the reading portion has a relief portion that avoids the drive pulley or the fixing member that fixes the drive pulley when the reading portion is located at the end of the third direction in the moving region. As a result, the thickness of the reading portion and the drive pulley together in the vertical direction can be reduced, and the vertical dimensions of the device can be suppressed. Furthermore, this embodiment is not limited to the second embodiment described above, but may also be dependent on the third embodiment described above.
[0019] A fifth aspect is an aspect dependent on the first aspect, characterized in that the upper part of the housing recess is open and the drive unit is exposed. According to this embodiment, the housing recess is left open and the drive unit is exposed, which reduces the cost increase of the device compared to a configuration in which the drive unit is covered by a cover, and also reduces the height dimension of the device. Furthermore, even in this configuration, contact between the flexible flat cable and the drive unit can be suppressed due to the effects of the first embodiment described above. Furthermore, this embodiment is not limited to the first embodiment described above, but may be dependent on any of the second to fourth embodiments described above.
[0020] The sixth embodiment is an embodiment dependent on the first embodiment, characterized in that the reading unit is provided with a pressing member for applying tension to the endless belt. According to this embodiment, the reading unit is equipped with a pressing member for applying tension to the endless belt, thereby enabling a space-saving configuration for applying tension to the endless belt.
[0021] The seventh embodiment of the recording device is characterized by comprising a recording unit having a recording section for recording on a medium, and an image reading device according to any of the first to sixth embodiments, which is rotatably connected to the recording unit and can be switched by rotation between a closed state that covers the top of the recording unit and an open state that opens the top of the recording unit. According to this embodiment, the recording device can obtain any of the effects of the first to sixth embodiments described above.
[0022] The eighth aspect is an aspect dependent on the seventh aspect, wherein the recording unit comprises a media support section for supporting a medium in an inclined position before feeding, a feeding roller for feeding the medium from the media support section, and a frame located between the media support section and the recording section, wherein a first frame surface faces the feeding roller and a second frame surface opposite to the first frame surface faces the recording section, and the case has a protruding portion that forms the housing recess and protrudes downward from the case, wherein in the closed state of the image reading device, the protruding portion is located to the side of the media support section in a width direction intersecting the medium feeding direction from the media support section, and at least a part of the protruding portion is located vertically below the upper end of the frame.
[0023] According to this embodiment, in the closed state of the image reading device, the protruding portion is located to the side of the media support portion in the width direction, and at least a part of the protruding portion is located vertically below the upper end of the frame. As a result, the protruding portion is less likely to affect the height dimension of the recording device, and the height dimension of the device can be suppressed.
[0024] The ninth aspect is an aspect dependent on the eighth aspect, wherein the recording unit comprises a carriage that moves in the width direction, a recording head mounted on the carriage, and a maintenance section provided outside the media transport area in the width direction and at one end of the movable range of the carriage for maintaining the recording head, characterized in that at least a part of the maintenance section and at least a part of the protruding portion overlap in the width direction.
[0025] In a configuration in which a maintenance unit for maintaining the recording head is provided outside the media transport area in the width direction and at one end of the movable range of the carriage, an empty space is formed to the side of the media support unit. According to this embodiment, by arranging the protruding portion in such an empty space, the empty space can be effectively utilized, and the size of the device can be suppressed.
[0026] The present invention will be described in detail below. In the following description, an inkjet printer 1, which records data by ejecting ink (an example of a liquid) onto a medium such as recording paper, will be described as an example of a recording device. Hereafter, the inkjet printer 1 will be abbreviated as printer 1.
[0027] The XYZ coordinate system shown in each figure is a Cartesian coordinate system, where the direction indicated by the arrow on the X, Y, and Z axes is considered the + direction, and the opposite direction is considered the - direction. The Y-axis direction is the direction in which the medium is transported during recording, and also the depth direction of the device. In this embodiment, of the sides that make up the perimeter of the printer 1, the side in the +Y direction is the front, and the side in the -Y direction is the back. The X-axis direction corresponds to the width of the device; from the perspective of the printer 1 operator, the +X direction is to the left and the -X direction is to the right. The X-axis direction also corresponds to the width of the media. In the following, the X-axis direction may simply be referred to as the width direction. The Z-axis direction is the vertical direction, i.e., the device height direction, with the +Z direction being upward and the -Z direction being downward.
[0028] As shown in Figure 1, the printer 1 is configured as a multifunction device comprising a recording unit 2 and a scanner unit 3 located above the recording unit 2. The scanner unit 3, which is an example of an image reading device that reads images from a document, comprises a reading unit 4 and a document cover 5 provided above the reading unit 4. The document cover 5 is rotatably mounted relative to the reading unit 4, and when opened, the document tray 6 that constitutes the reading unit 4 is exposed as shown in Figure 2. The document tray 6 is made of, for example, a glass plate. A reading unit 61 (see Figure 9), which will be described later, is provided on the underside of the document tray 6.
[0029] The scanner unit 3 is rotatably connected to the recording unit 2 via a pivot shaft 60g (see Figure 7), and by rotating, it can assume a closed state as shown in Figure 1 and an open state as shown in Figure 3. The pivot shaft 60g is supported by the bearing portion 39a (see Figures 5 and 7) of the base frame 39 that constitutes the base of the recording unit 2. In Figure 3, reference numeral 13 denotes a support arm, which holds the scanner unit 3 in the open position. When the scanner unit 3 is opened, the inside of the recording unit 2 is exposed.
[0030] In Figure 1, an operation panel 10 is provided on the front side of the recording unit 2. The operation panel 10 is tiltable and can be positioned with the panel surface aligned vertically, as shown in Figure 1, or with the panel surface facing upwards (not shown). An outlet 11 is formed on the front side of the recording unit 2. A media receiving tray 12 is provided in the outlet 11. The media receiving tray 12 is configured to be switchable between a stored state as shown in Figure 1 and a pulled-out state as shown in Figure 4 relative to the recording unit 2.
[0031] Furthermore, an ink storage section 7 is provided on the front side of the recording unit 2. The ink storage section 7 can accommodate multiple colors of ink, such as yellow, magenta, cyan, and black ink. An ink level viewing window 7a is provided on the front side of the ink storage section 7 for visually checking the remaining ink level. A cover 8 is provided on the upper part of the ink storage section 7. The cover 8 is integrally provided with the scanner section 3, and when the scanner section 3 is opened, the upper part of the ink storage section 7 is exposed as shown in Figure 3. In Figure 3, reference numeral 9 denotes the cap lever. The cap lever 9 is openable and closable, and by opening the cap lever 9, an ink filler port (not shown) can be exposed. Ink can then be refilled through this ink filler port.
[0032] As shown in Figures 4, 5, and 7, a media support section 14 is provided on the rear side of the recording unit 2 to support the media in an inclined position before feeding. The media support section 14 comprises a support section 15 and a swinging support section 16. The swinging support section 16 is capable of swinging around a swing axis 16a (see Figure 7) and swings by receiving power from a motor (not shown), thereby bringing the supported media into contact with the feed roller 23.
[0033] As shown in Figure 5, the rocking support section 16 is provided with edge guides 17A and 17B that guide the edges of the medium in the width direction. The edge guides 17A and 17B are arranged to be close to or far apart from each other along the width direction of the medium by a rack and pinion mechanism (not shown).
[0034] The support section 15 can be in the deployed state shown in Figures 4, 5, and 7, and the retracted state shown in Figure 1. In the deployed state shown in Figures 4, 5, and 7, the support section 15 is in an inclined position. In the retracted state shown in Figure 1, the support section 15 is in a vertical position and is stored on the rear side of the base frame 39. As shown in Figure 7, a guide section 39b extending vertically is formed on the rear side of the base frame 39. A pivot shaft 15b is formed in the support section 15, and the pivot shaft 15b is provided to be movable vertically within the guide section 39b.
[0035] When the support section 15 is in its retracted state, the pivot shaft 15b is located at the lower end of the guide section 39b. When the user pulls up the support section 15 from this state and tilts it, the pivot shaft 15b enters into the holding section 39c provided on the upper part of the guide section 39b. The rear side of the support section 15 then contacts the contact section 39d of the base frame 39, and the tilted position is maintained.
[0036] As shown in Figures 1, 4, and 5, a curved support portion 15a is formed on the upper part of the support portion 15. The medium supported by the support portion 15 is curved downward along the width direction by the curved support portion 15a, thereby preventing the upper end of the medium from sagging backward.
[0037] The transport path 20 for the media in the recording unit 2 will be described below with reference to Figure 7. In the following, the direction in which the media is transported will be referred to as "downstream," and the opposite direction as "upstream." In Figure 7, the transport path 20 for the media is shown as a dashed line. In the printer 1, the media is transported through the transport path 20.
[0038] The media support section 14 described above is located at the very upstream end of the transport path 20. The media supported by the media support section 14 is nipped and separated by a feeding roller 23 driven by a motor (not shown) and a separation roller 24 with rotational resistance, and then sent toward the transport roller pair 26. Reference numeral 23a denotes the rotation axis of the feed roller 23. Reference numeral 25 denotes a support member that supports one end of the rotation axis 23a. The support member 25 is fixed to the main frame 40, which will be described later.
[0039] The transport roller pair 26 comprises a transport drive roller 27 driven by a transport motor (not shown) and a transport driven roller 28 that nip the medium between itself and the transport drive roller 27. The transport driven roller 28 is rotatably supported by a roller support member 29. In this embodiment, the transport drive roller 27 is a shaft extending in the width direction. In this embodiment, multiple transport driven rollers 28 are provided relative to the transport drive roller 27 at appropriate intervals along the width direction.
[0040] The roller support member 29 is pivotably mounted to the main frame 40 via a pivot shaft (not shown), and by pivoting, the transport driven roller 28 moves forward and backward relative to the transport drive roller 27. The roller support member 29 is pressed by a pressing member (not shown), such as a torsion spring or tension spring, in the direction that the transport driven roller 28 advances relative to the transport drive roller 27.
[0041] The recording unit 35 comprises a carriage 36 and a recording head 37. The carriage 36 is supported by the main frame 40 and guided in the width direction. The carriage 36 reciprocates in the width direction with power from the carriage motor 49 (see Figure 5). A recording head 37 is provided at the bottom of the carriage 36. The recording head 37 is equipped with multiple ink ejection nozzles (not shown) capable of ejecting ink in the -Z direction. The ink storage unit 7 and the carriage 36 are connected by an ink tube 47 (see Figure 5), and ink is supplied from the ink storage unit 7 through the ink tube 47.
[0042] In this embodiment, the printer 1 has an ink storage unit 7 that is separate from the carriage 36, but the ink storage unit 7 may also be provided on the carriage 36. Also, in this embodiment, the recording unit 35 is configured such that the recording head 37 moves in the width direction while ejecting ink, i.e., it is a serial type, but it is not limited to this, and may also be configured such that the ink ejection nozzles are arranged to cover the entire width direction and recording is possible without movement in the width direction, i.e., it is a line head. Furthermore, the recording method is not limited to inkjet; it may also be dot impact, laser, or LED electrophotographic.
[0043] Next, a support member 38 is provided at a position that can face the recording head 37 to support the medium. The support member 38 defines the distance between the medium and the recording head 37. The recording head 37 then ejects ink onto the medium supported by the support member 38 and performs recording on the recording surface of the medium. The recorded medium is nipped by a pair of discharge rollers 32 located downstream of the recording head 37 in the transport path 20 and discharged toward the medium receiving tray 12.
[0044] The discharge roller pair 32 comprises a discharge drive roller 33 driven by a transport motor (not shown) and a discharge driven roller 34 that nip the medium between itself and the discharge drive roller 33. In this embodiment, multiple discharge roller pairs 32 are provided at appropriate intervals along the width direction. In this embodiment, the discharge driven roller 34 is a toothed roller having teeth on its outer circumference. The discharge driven roller 34 is movable back and forth relative to the discharge drive roller 33, and by using a rod spring as the axis of rotation, it nips the medium between itself and the discharge drive roller 33.
[0045] Furthermore, a maintenance section 90 is provided at the -X end of the carriage 36 in the reciprocating motion region, as shown in Figures 5, 6A, and 6B. The maintenance section 90 is equipped with a cap 91 capable of sealing the ink ejection surface of the recording head 37. A suction pump 45 is provided adjacent to the maintenance section 90, as shown in Figure 5, and the suction pump 45 and the cap 91 are connected by a tube 92. As a result, when the suction pump 45 is operated, negative pressure is supplied into the cap 91, and waste ink is sucked out from the cap 91.
[0046] The waste ink sucked up by the suction pump 45 is sent to the waste liquid storage section 46 via the tube 93 and collected. The waste liquid storage section 46 is located at the top of the front side of the device. The suction pump 45 is driven by a transport motor (not shown). When the transport motor rotates in the forward direction when transporting the medium downstream, the suction pump 45 operates only when the transport motor rotates in the reverse direction.
[0047] Next, the configuration of the main frame 40 and its surroundings will be described. The main frame 40 is the frame that constitutes the base of the recording unit 2. Referring to Figure 8, the main frame 40 is formed by bending a metal plate so that it has a vertical frame portion 40a, an upper bent portion 40d, and a lower bent portion 40e. The +Y end of the upper bent portion 40d is further bent in the -Z direction. Similarly, the +Y end of the lower bent portion 40e is further bent in the +Z direction. The upper bent portion 40d constitutes the upper end of the main frame 40.
[0048] The vertical frame portion 40a is a part that forms a surface parallel to the XZ plane and has a first frame surface 40b which is the back side surface and a second frame surface 40c which is the front side surface and is opposite to the first frame surface 40b. The upper folded portion 40d and the lower folded portion 40e are parts that form planes parallel to the XY plane.
[0049] The main frame 40 is located between the media support section 14 and the recording section 35, with the first frame surface 40b facing the feed roller 23 and the second frame surface 40c facing the recording section 35. The main circuit board 50 is mounted horizontally on the rear side of the main frame 40. A portion of the main circuit board 50 is supported by the support member 25. The main board 50 constitutes the control unit that manages the overall control of the printer 1, and various electronic components and connectors are mounted on it. The main circuit board 50 is located on the rear side of the main frame 40 and below the cover member 41 (see Figure 3). Figure 5 shows the main circuit board 50 exposed after the cover member 41 has been removed.
[0050] A carriage motor 49 is provided on the vertical frame section 40a on the side of the first frame surface 40b, as shown in Figures 5, 6A, and 6B. A carriage belt 48 (see Figure 5) for pulling the carriage 36 is also attached to the vertical frame section 40a on the side of the second frame surface 40c. The lower bent portion 40e is pivotably supported by the roller support member 29. The lower bent portion 40e also supports the carriage 36 and guides it in the width direction.
[0051] As shown in Figure 5, a drive pulley 52 is provided at the -X end of the second frame surface 40c of the vertical frame section 40a. A driven pulley 53 is also provided at the +X end of the second frame surface 40c of the vertical frame section 40a. The carriage belt 48 is routed around the drive pulley 52 and the driven pulley 53. The drive pulley 52 is mounted on the rotating shaft of the carriage motor 49.
[0052] The driven pulley 53 is supported by a holder 54. The holder 54 is provided on the vertical frame portion 40a so as to be displaceable in the X-axis direction and is pressed in the +X direction by a compression coil spring 55, which is an example of a pressing member. This applies tension to the carriage belt 48 along the X-axis direction.
[0053] Next, we will describe the configuration of the scanner unit 3 in detail. Note that the Y-axis is an example of the first axis, and in Figure 9, the -Y direction is an example of the first direction, and the +Y direction is an example of the second direction. Also, the X-axis is an example of the second axis, and in Figure 9, the -X direction is an example of the third direction, and the +X direction is an example of the fourth direction. Figure 9 is a plan view of case 60 from the +Z direction, which is an example of the normal direction to the document table 6 (see Figure 2).
[0054] The scanner unit 3 is based on a case 60, as shown in Figures 9 and 10. An upper housing 79 (see also Figure 2) is provided on top of the case 60, as shown in Figure 10. The upper housing 79 forms the perimeter of the document tray 6. Case 60, as shown in Figure 9, has an overall rectangular shape that is elongated in the X-axis direction, and has a first wall portion 60a1 and a second wall portion 60a2 extending in the X-axis direction, and a third wall portion 60a3 and a fourth wall portion 60a4 extending in the Y-axis direction. The first wall portion 60a1 and the second wall portion 60a2 form a plane parallel to the XZ plane. The second wall portion 60a2 is located in the +Y direction relative to the first wall portion 60a1. The third wall portion 60a3 and the fourth wall portion 60a4 form a plane parallel to the YZ plane. The fourth wall portion 60a4 is located in the +X direction relative to the third wall portion 60a3.
[0055] The reading unit 61 has a shape that extends along the Y-axis and reads the document placed on the document glass 6 (see Figure 2) by moving along the X-axis. The reading unit 61 comprises a sensor carriage 62 and a sensor module 63 mounted on the sensor carriage 62. The sensor module 63 is, for example, a CIS (contact image sensor). The case 60 has a guide portion 60d that is parallel to the X-axis. The sensor carriage 62 has a guided portion 62a that engages with the guide portion 60d, and the reading portion 61 is guided in the X-axis direction by the guide portion 60d.
[0056] The sensor carriage 62 is pulled in the +X and -X directions by the endless belt 76. A belt clamp portion 62d is formed on the underside of the sensor carriage 62, as shown in Figure 16. The sensor carriage 62 is fixed to a portion of the endless belt 76 by a portion of the endless belt 76 fitting into the belt clamp portion 62d. The sensor carriage 62 is fixed to a portion of the fourth belt section 76d, which will be described later.
[0057] Furthermore, a spring holding portion 62e is formed near the belt clamp portion 62d. A coil spring 82, which is an example of a pressing member, is held in the spring holding portion 62e. A portion of the endless belt 76 is wrapped around the coil spring 82 to form a wrapping portion 76e. The first arm portion 82a of the coil spring 82 is wrapped around the endless belt 76 extending in the +X direction from the spring holding portion 62e, and the second arm portion 82b of the coil spring 82 is wrapped around the endless belt 76 extending in the -X direction from the spring holding portion 62e. The second arm portion 82b applies a tensile force to the endless belt 76 in the +X direction, thereby applying tension to the endless belt 76. In this embodiment, since the coil spring 82, which is a pressing member that applies tension to the endless belt 76, is provided in the reading unit 61, the configuration for applying tension to the endless belt 76 can be realized in a space-saving manner.
[0058] Next, returning to Figure 9, the case 60 is provided with a plurality of driven pulleys that can be rotated by the drive. In this embodiment, the plurality of driven pulleys consist of a first driven pulley 73, a second driven pulley 74, and a third driven pulley 75. The case 60 is also provided with a drive pulley 67 that is driven by a belt drive motor 66. The endless belt 76 is wrapped around the first driven pulley 73, the second driven pulley 74, the third driven pulley 75, and the drive pulley 67, and pulls the reading unit 61 as the belt drive motor 66 rotates.
[0059] The second driven pulley 74 is located in the -X direction relative to the first driven pulley 73 in view of the X axis. In this embodiment, the second driven pulley 74 is provided at the -X end inside the case 60 and is adjacent to the third wall portion 60a3. The first driven pulley 73 is provided at the +X end inside the case 60 and is adjacent to the fourth wall portion 60a4. The third driven pulley 75 is located in the -Y direction relative to the second driven pulley 74 in the Y-axis view, and in the +X direction relative to the second driven pulley 74 in the X-axis view. The drive pulley 67 is located in the +X direction relative to the second driven pulley 74 in the X-axis view. The drive unit 65 is located in the -Y direction relative to the third driven pulley 75 in the Y-axis view.
[0060] Furthermore, the section of the endless belt 76 between the first driven pulley 73 and the third driven pulley 75 is designated as the first belt section 76a. The section of the endless belt 76 between the third driven pulley 75 and the drive pulley 67 is designated as the second belt section 76b. The section of the endless belt 76 between the drive pulley 67 and the second driven pulley 74 is designated as the third belt section 76c. The section of the endless belt 76 between the second driven pulley 74 and the first driven pulley 73 is designated as the fourth belt section 76d.
[0061] The straight line Lc connecting the rotation axis center of the first driven pulley 73 and the rotation axis center of the second driven pulley 74 lies along the X-axis. Therefore, the fourth belt section 76d extends along the X-axis. In this embodiment, the first belt section 76a also extends along the X-axis. That is, the first belt section 76a and the fourth belt section 76d are parallel.
[0062] Next, a housing recess 60e is formed in the case 60. As shown in Figure 11, the housing recess 60e is formed to be recessed in the -Z direction from the inner bottom surface 60b of the case 60. The housing recess 60e houses the drive unit 65, which includes a belt drive motor 66 and a drive pulley 67, which are the power source for moving the reading unit 61. In this embodiment, the drive unit 65 further includes gears 68, 69, and 70 in addition to the belt drive motor 66 and drive pulley 67. The axis centers of the gears 68, 69, and 70 are parallel to the Z axis.
[0063] In this embodiment, the motor shaft (not shown) of the belt-driven motor 66 is parallel to the Z-axis and protrudes from the body of the belt-driven motor 66 in the -Z direction. A pinion (not shown) is provided on the motor shaft (not shown), and this pinion meshes with a gear 68. Gears 68 and 69 are two-stage gears, with the larger gear of gear 68 meshing with the pinion. The smaller gear of gear 68 meshes with the larger gear of gear 69. The smaller gear of gear 69 meshes with gear 70. Gear 70 and the drive pulley 67 are integrally formed and fixed to the case 60 with a washer 67b and a fixing screw 67a.
[0064] As shown in Figure 10, the receiving recess 60e forms a protruding portion 60f that protrudes in the -Z direction from the lower surface 60c of the case 60 when viewed from below the case 60. The receiving recess 60e, or protruding portion 60f, is located at the end in the -X direction in the view of the X axis and at the end in the -Y direction in the view of the Y axis. In other words, the receiving recess 60e, or protruding portion 60f, is provided at one corner of the square of the case 60. However, the receiving recess 60e, or protruding portion 60f, may be provided at another corner of the square of the case 60. For example, the receiving recess 60e, or protruding portion 60f, may be located at the end in the +X direction in the view of the X axis and at the end in the -Y direction in the view of the Y axis.
[0065] Next, returning to Figure 9, a flexible flat cable 80 is provided inside the case 60. Hereafter, the flexible flat cable 80 will be abbreviated as FFC80. The FFC80 is arranged so that its width direction is aligned with the Z-axis direction. The first wall portion 60a1 of the case 60 is provided with a first holding portion 60h for holding the FFC80. The sensor carriage 62 of the reading portion 61 is also provided with a second holding portion 62b for holding the FFC80. The FFC80 forms a folded portion 80a between the first holding portion 60h and the second holding portion 62b. The first holding portion 60h, the second holding portion 62b, and the FFC 80 between the first holding portion 60h and the second holding portion 62b are located in the -Y direction with respect to the first belt section 76a in view of the Y axis.
[0066] The FFC80 extends from the second holding portion 62b of the sensor carriage 62 in the -X direction, forms a folded portion 80a and changes direction in the +X direction, extends along the first wall portion 60a1 in the +X direction, and enters the first holding portion 60h. The FFC80 is then connected to the main substrate 50 (see Figure 7). In this embodiment, the folded portion 80a is, for example, the portion of the FFC80 that is furthest in the -X direction.
[0067] The FFC80 deforms between the first holding portion 60h and the second holding portion 62b as the reading portion 61 moves, and the folded portion 80a moves as the reading portion 61 moves. The reading portion 61, indicated by the dashed line denoted by reference numeral 61-1, shows the state where it has moved the furthest in the -X direction within the movement region Tw1. Reference numeral 80a-1 indicates the folded portion 80a in this state. Furthermore, the reading section 61, indicated by the dashed line labeled 61-2, represents the state in which the movement region Tw1 has moved the furthest in the +X direction. Also, the label 80a-2 indicates the folded portion 80a in this state.
[0068] As shown in the diagram, when the reading section 61 moves the furthest in the -X direction, the folded portion 80a is closest to the reading section 61 in terms of the X-axis. From this state, as the reading section 61 moves in the +X direction, the folded portion 80a moves away from the reading section 61 in terms of the X-axis. When the reading unit 61 moves most far in the +X direction, the folded portion 80a is furthest from the reading unit 61 in terms of the X-axis. More specifically, when the reading unit 61 moves most far in the +X direction, the portion of the folded portion 80a furthest from the reading unit 61 in terms of the X-axis is the portion furthest in the -X direction. As described above, the folded portion 80a moves forward and backward relative to the reading portion 61 depending on its position. However, because the FFC 80 tends to sag downward due to the effect of gravity, the further the folded portion 80a is from the reading portion 61, i.e., the second holding portion 62b, the more pronounced the downward sag becomes.
[0069] In this case, due to the arrangement of the drive unit 65 and the FFC 80, there are cases where the FFC 80 and the drive unit 65 overlap when viewed from the +Z direction. For example, since the main board 50 (see Figure 7) is provided on the recording unit 2, it is preferable that the cable electrically connecting the recording unit 2 and the scanner unit 3 be located close to the pivot axis 60g of the scanner unit 3. Therefore, it is preferable to position the drive unit 65 in the case 60 close to the -Y direction end. Interference between the endless belt 76 and the FFC 80 is also undesirable. In this regard, it is preferable that the FFC 80 be routed in the -Y direction region with respect to the first belt section 76a of the endless belt 76.
[0070] On the other hand, if the pulleys around the endless belt 76 are limited to, for example, only two, a first driven pulley and a drive pulley 67, the area where the drive unit 65 is positioned will protrude in the -X direction compared to the configuration of this embodiment, increasing the device dimensions in the X-axis direction. Therefore, adopting a third driven pulley 75 as in this embodiment, and positioning the drive pulley 67 in the +X direction relative to the second driven pulley 74 from the viewpoint of the X-axis, contributes to suppressing the device dimensions in the X-axis direction. Furthermore, since the drive unit 65 is positioned in the -Y direction relative to the first belt section 76a from the viewpoint of the Y-axis, the FFC 80 and the drive unit 65 tend to overlap when viewed from the +Z direction. In particular, if the drive unit 65 is positioned further in the +X direction compared to this embodiment, the FFC 80 and the drive unit 65 tend to overlap even more.
[0071] In order to prevent contact between the FFC80 and the drive unit 65, it is necessary to separate the FFC80 and the drive unit 65 significantly in the vertical direction. As mentioned above, the FFC80 tends to sag vertically downward due to the effects of gravity. However, separating the FFC80 and the drive unit 65 significantly in the vertical direction leads to an increase in the height dimension of the device.
[0072] As described above, the folded portion 80a of the FFC 80 tends to sag vertically downward the further it is from the reading portion 61, i.e., the second holding portion 62b. Therefore, if the drive unit 65 is located below the folded portion 80a in this state, the folded portion 80a and the drive unit 65 are likely to come into contact. For this reason, the FFC 80 and the drive unit 65 need to be separated by a large vertical distance, which leads to an increase in the height dimension of the device.
[0073] However, according to this embodiment, when the reading unit 61 is located at the -X end of the moving region Tw1, at least a part of the drive unit 65 overlaps with the reading unit 61 when viewed from the +Z direction, as shown in Figures 9, 12, and 13. In this case, the entire drive unit 65 may also overlap with the reading unit 61. When the reading unit 61 is located at the -X end of the moving region Tw1, the FFC 80 and the drive unit 65 overlap when viewed from the +Z direction, and this overlap is resolved when the reading unit 61 moves from the -X end of the moving region Tw1 in the +X direction.
[0074] In this embodiment, the folded portion 80a of the FFC 80 is closest to the reading portion 61, i.e., the second holding portion 62b, when the reading portion 61 is located at the -X end of the moving region Tw1. Therefore, in this state, the folded portion 80a is less likely to hang down vertically. In this state, the FFC 80 and the drive unit 65 overlap when viewed from the +Z direction. Therefore, there is no need to separate the FFC 80 and the drive unit 65 significantly in the vertical direction, and an increase in the height dimension of the device can be suppressed. Then, when the reading unit 61 moves from the -X end of the moving region Tw1 in the +X direction, the overlap between the FFC 80 and the drive unit 65 is eliminated. As a result, contact between the FFC 80 and the drive unit 65 can be suppressed.
[0075] In this embodiment, the first belt section 76a extends along the X-axis. When the reading unit 61 is located at the -X end of the moving region Tw1, as shown in Figure 9, the entire area of the second belt section 76b, when viewed from the +Z direction, overlaps with the reading unit 61. Therefore, the first belt section 76a and the second belt section 76b are less likely to overlap with the moving region of the FFC 80 when viewed from the +Z direction. This suppresses contact with the FFC 80 endless belt 76.
[0076] Furthermore, in this embodiment, when the reading unit 61 is located at the -X end of the moving region Tw1, a portion of the FFC 80 and a portion of the third belt section 76c overlap when viewed from the +Z direction. In this case, as described above, the FFC 80 is in a state where it is difficult to sag vertically downward, so contact between the FFC 80 and the third belt section 76c can be suppressed.
[0077] Furthermore, in this embodiment, as shown in Figure 9, when the reading unit 61 is located at the -X end of the moving region Tw1, a part of the drive pulley 67 and a part of the reading unit 61 overlap when viewed from the +Z direction. As shown in Figure 12, the reading section 61 has a relief section formed to avoid the fixing screw 67a and washer 67b, which are fixing members that secure the drive pulley 67 when the reading section 61 is located at the end of the -X direction in the moving region Tw1. The relief section consists of a first relief section 62c1 that avoids the fixing screw 67a and a second relief section 62c2 that avoids the washer 67b.
[0078] This configuration allows for a reduction in the thickness of the reading unit 61 and the drive pulley 67 in the vertical direction, thereby suppressing the vertical dimensions of the device. Furthermore, the fixing screw 67a does not necessarily need to be inserted into the first relief portion 62c1 in the vertical direction. Similarly, the washer 67b does not necessarily need to be inserted into the second relief portion 62c2 in the vertical direction. This is because the formation of such relief portions eliminates the need to ensure a large Z-axis distance between the fixing screw 67a and washer 67b and the reading portion 61, thereby contributing to the reduction of the vertical dimensions of the device. Furthermore, a clearance portion may be formed to avoid the drive pulley 67.
[0079] Furthermore, as shown in Figure 11, in this embodiment, the upper part of the housing recess 60e is open, and the drive unit 65 is exposed. This reduces the cost increase of the device compared to a configuration in which the upper part of the drive unit 65 is covered by a cover, and also reduces the height dimension of the device. Even with this configuration, contact between the FFC 80 and the drive unit 65 can be suppressed due to the effects described above.
[0080] Next, we will explain the relationship between the arrangement of the drive unit 65 and the recording unit 2. As described above, the scanner unit 3 is rotatably connected to the recording unit 2, and by rotating it, it can be switched between a closed state that covers the top of the recording unit 2 and an open state that leaves the top of the recording unit 2 open.
[0081] When the scanner unit 3 is closed, as shown in Figure 6B, the protruding portion 60f is located to the side of the media support unit 14 in the X-axis direction, i.e., the width direction, specifically in the -X direction. As shown in Figure 8, a portion of the protruding portion 60f is located vertically below the upper end of the main frame 40. In this embodiment, a portion of the drive unit 65 is also located vertically below the upper end of the main frame 40. In Figures 7 and 8, position Z1 is the position of the upper end of the main frame 40 in the Z-axis direction. As a result, the protruding portion 60f has less influence on the height dimension of the printer 1, and the height dimension of the printer 1 can be suppressed. In this embodiment, a portion of the protruding portion 60f is located vertically below the upper end of the main frame 40, but the entire protruding portion 60f may be located vertically below the upper end of the main frame 40. Furthermore, as explained with reference to Figure 3, the upper surface of the cover member 41 is located at position Z1. As a result, as shown in Figure 8, the protruding portion 60f and the cover member 41 overlap in the vertical direction; in other words, when viewed from the horizontal direction, the protruding portion 60f and the cover member 41 are on top of each other.
[0082] Furthermore, as shown in Figure 6B, at least a portion of the maintenance section 90 and at least a portion of the protruding portion 60f overlap in the X-axis direction, i.e., the width direction. In other words, at least a portion of the maintenance section 90 and at least a portion of the protruding portion 60f are in the same position in the width direction. In Figure 6B, the symbol Wx2 represents the media transport area in the width direction, and the symbol Wx1 represents the movable area of the carriage 36 in the width direction. The symbol Wx4 represents the area of the protruding portion 60f in the width direction. In a configuration where a maintenance section 90 for maintaining the recording head 37 (see Figure 7) is provided on the outside of the media transport area Wx2 in the width direction and at one end of the movable area Wx1 of the carriage 36, an empty space is easily formed to the side of the media support section 14. The symbol Wx3 represents the area of this empty space in the width direction. By arranging the protruding portion 60f in such an empty space, the empty space can be effectively utilized, and the size of the device can be suppressed.
[0083] As is clear from Figure 6B, the region Wx4 of the protruding portion 60f in the width direction and the region of the carriage motor 49 in the width direction overlap. Also, in Figure 6B, the symbol Wy1 represents the Y-axis region of the protruding portion 60f, and the symbol Wy2 represents the Y-axis region of the carriage motor 49. In this embodiment, a part of region Wy1 and a part of region Wy2 overlap in the Y-axis direction.
[0084] Furthermore, in this embodiment, as shown in Figure 8, the receiving recess 60e, or in other words, the protruding portion 60f, overlaps with the edge guide 17A when viewed from the width direction. Also, when viewed from the width direction, the belt-driven motor 66 and the bearing portion 39a overlap.
[0085] In Figure 3, reference numeral 42 denotes a housing that forms the upper surface of the recording unit 2, and the housing 42 has a protrusion 42a that projects in the +Z direction. Components of the recording unit 2 can be housed inside the protrusion 42a. As shown in Figure 8, when the scanner unit 3 is closed, the convex portion 42a and the protruding portion 60f overlap in the vertical direction. This configuration makes it possible to suppress the increase in size of the device.
[0086] The present invention is not limited to the embodiments and modifications described above, and it goes without saying that various modifications are possible within the scope of the invention as described in the claims, and these are also included within the scope of the present invention. [Explanation of symbols]
[0087] 1...Printer, 2...Recording unit, 3...Scanner unit, 4...Reading unit, 5...Document cover, 6...Plateau, 7...Ink reservoir, 7a...Ink level indicator window, 8...Cover, 9...Cap lever, 10...Control panel, 11...Outlet, 12...Media receiving tray, 13...Support arm, 14...Media support section, 15...Support section, 15a...Curved support section, 15b...Oscillating axis, 16...Oscillating support section, 17A, 17B...Edge guide D, 20...Conveying path, 23...Feeding roller, 23a...Rotating shaft, 24...Separation roller, 25...Support member, 26...Conveying roller pair, 27...Conveying drive roller, 28...Conveying driven roller, 29...Roller support member, 32...Discharge roller pair, 33...Discharge drive roller, 34...Discharge driven roller, 35...Recording unit, 36...Carriage, 37...Recording head, 38...Support member, 39...Base frame, 39a...Bearing unit, 40...Main frame, 40a...Vertical frame section, 40b...First frame surface, 40c...Second frame surface, 40d...Upper folded section, 40e...Lower folded section, 41...Cover member, 42...Housing, 42a...Protrusion, 45...Suction pump, 46...Waste liquid storage section, 47...Ink tube, 48...Carriage belt, 49...Carriage motor, 50...Main circuit board, 52...Drive pulley, 53...Driven pulley, 54...Holder, 55...Compression coil spring, 60...Case, 60a1...First wall, 60a2...Second wall, 60a3...Third wall, 60a4...Fourth wall, 60b...Bottom surface, 60c...Underside, 60d...Guide part, 60e...Receiving recess, 60f...Protruding part, 60g...Rotating shaft, 60h...First holding part, 61...Reading part, 62...Sensor carriage, 62a...Guided Part, 62b...Second holding part, 62c1...First relief part, 62c2...Second relief part, 62d...Belt clamp part, 62e...Spring holding part, 63...Sensor module, 65...Drive unit, 66...Belt drive motor, 67...Drive pulley, 67a...Fixing screw, 67b...Washer, 68, 69, 70...Gear, 73...First driven pulley, 74...Second driven pulley, 75...Third driven pulley -, 76...endless belt, 76a...first belt section, 76b...second belt section, 76c...third belt section, 76d...fourth belt section, 76e...winding section, 79...upper housing, 80...flexible flat cable (FFC), 80a...folded section, 82...coil spring, 82a...first arm section, 82b...second arm section, 90...maintenance section, 91...cap, 92, 93...tube
Claims
1. A document stand on which the document is placed, A reading unit having a shape extending along a first axis and moving along a second axis intersecting the first axis to read a document placed on the document table, A drive unit including a motor which is the power source for the movement of the reading unit and a drive pulley driven by the motor, Multiple driven pulleys that can be driven to rotate, An endless belt is wrapped around the drive pulley and the plurality of driven pulleys, and pulls the reading unit as the motor rotates, A case constituting the base of the device, having a housing recess for housing the drive unit, A flexible flat cable that curves and forms a folded portion between a first holding portion provided in the case and a second holding portion provided in the reading portion, Equipped with, The plurality of driven pulleys include a first driven pulley, a second driven pulley, and a third driven pulley. The straight line connecting the rotation axis center of the first driven pulley and the rotation axis center of the second driven pulley lies along the first axis. One of the directions along the first axis is designated as the first direction, the direction opposite to the first direction is designated as the second direction, one of the directions along the second axis is designated as the third direction, and the direction opposite to the third direction is designated as the fourth direction. The second driven pulley is positioned in the third direction relative to the first driven pulley in view of the second axis, The third driven pulley is positioned in the first direction relative to the second driven pulley in the view of the first axis, and in the fourth direction relative to the second driven pulley in the view of the second axis, The drive unit is positioned in the first direction relative to the third driven pulley in view of the first axis, The drive pulley is positioned in the fourth direction relative to the second driven pulley in view of the second axis, When the reading unit is located at the end of the third direction in the moving area, at least a part of the drive unit is in a position that overlaps with the reading unit when viewed from the direction normal to the document glass, The section of the endless belt between the first driven pulley and the third driven pulley is defined as the first belt section. The first holding portion, the second holding portion, and the flexible flat cable are positioned in the first direction with respect to the first belt section in view of the first axis, The folded portion of the flexible flat cable is closest to the reading portion when the reading portion is located at the end in the third direction within the moving region. When the reading unit is located at the end of the third direction in the moving region, the flexible flat cable and the drive unit overlap when viewed from the normal direction, and as the reading unit moves from the end of the third direction in the moving region to the fourth direction, the overlap between the flexible flat cable and the drive unit is eliminated. An image reading device characterized by the following.
2. In the image reading device according to claim 1, The section between the third driven pulley and the drive pulley is defined as the second belt section, the section between the drive pulley and the second driven pulley is defined as the third belt section, and the section between the second driven pulley and the first driven pulley is defined as the fourth belt section. The first belt section extends along the second axis, When the reading unit is located at the end of the third direction in the moving region, the entire area of the second belt section overlaps with the reading unit when viewed from the normal direction. An image reading device characterized by the following.
3. In the image reading device according to claim 2, When the reading unit is located at the end of the third direction in the moving area, a portion of the flexible flat cable and a portion of the third belt section overlap when viewed from the normal direction. An image reading device characterized by the following.
4. In the image reading device according to claim 2, When the reading unit is located at the end of the third direction in the moving region, a part of the drive pulley and a part of the reading unit overlap when viewed from the normal direction. The reading portion is provided with a relief portion that avoids the drive pulley or the fixing member that fixes the drive pulley when the reading portion is located at the end of the third direction in the moving region. An image reading device characterized by the following.
5. In the image reading device according to claim 1, The upper part of the aforementioned housing recess is open, and the drive unit is exposed. An image reading device characterized by the following.
6. In the image reading device according to claim 1, The reading unit is provided with a pressing member that applies tension to the endless belt. An image reading device characterized by the following.
7. A recording unit equipped with a recording section for recording onto a medium, An image reading device according to any one of claims 1 to 6, which is rotatably connected to the recording unit and can be switched by rotation between a closed state that covers the top of the recording unit and an open state that opens the top of the recording unit, A recording device equipped with this device.
8. In the recording device according to claim 7, The recording unit is A media support unit that supports the media in an inclined position before feeding, A feeding roller that delivers the medium from the aforementioned medium support section, A frame located between the media support section and the recording section, wherein a first frame surface faces the feed roller, and a second frame surface opposite to the first frame surface faces the recording section, It has, The case has a portion that forms the receiving recess and protrudes downward from the case, In the closed state of the image reading device, the protruding portion is located to the side of the media support portion in a width direction intersecting the direction of media feeding from the media support portion, and at least a part of the protruding portion is located vertically below the upper end of the frame. A recording device characterized by the following features.
9. In the recording device according to claim 8, The recording unit is A carriage that moves in the width direction, A recording head mounted on the carriage, A maintenance unit for maintaining the recording head is provided on the outside of the media transport area in the width direction and at one end of the movable range of the carriage, Equipped with, In the width direction, at least a portion of the maintenance portion and at least a portion of the protruding portion overlap. A recording device characterized by the following features.