Image reading device

Abstract

To avoid a medium discharged from entering into a tray reliably.SOLUTION: A medium discharge device comprises discharge means discharging the medium and a medium receiving tray 22 receiving the medium discharged from the discharge means and capable of switching an expansion state and a storage state, and the medium receiving tray comprises a base tray 56, a main expansion part 58 situated at a medium discharge direction side than the base tray in the expansion state and capable of storing and expanding and at least one sub expansion part 60 situated at the medium discharge direction side than the main expansion part in the expansion state and capable of storing and expanding, and storage space 70 storing at least one sub expansion part is formed and a first projection part 66 projecting toward the storage space is provided as well at the base tray.SELECTED DRAWING: Figure 14

Description

[Technical Field]

[0001] The present invention relates to a medium ejection device that ejects a medium, and an image reading device that includes the medium ejection device. [Background technology]

[0002] Some scanners, which are an example of image reading devices, are equipped with an automatic document feeder (ADF) for documents as media, and are configured to automatically feed and read multiple documents. The multiple documents that are fed are read by an image reading unit provided downstream of the automatic document feeder in the transport direction.

[0003] Such scanners may be equipped with a media discharge device that has a pair of discharge rollers provided downstream of the image reading unit, discharges the original documents outside the device, and stacks the discharged documents in the order they are discharged onto a discharge receiving tray (sometimes called a discharge stacker) that receives the discharged documents (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-62839 Summary of the Invention [Problem to be solved by the invention]

[0005] Also, there are known output paper receiving trays that are configured to be switchable between a stored state and an unfolded state. For example, in a multi-stage output paper receiving tray, a base tray (a tray at the base end) is stored with a sub-tray (a tray at the free end), and when in use, the sub-tray is pulled out from the base tray and used in an unfolded state.

[0006] However, the base tray has a storage space for the sub-tray, and when the sub-tray is pulled out from the base tray, there is a risk that ejected media may get stuck in the storage space or further back than the storage space. This problem is particularly likely to occur when ejected media are small, such as card-sized media. Furthermore, the media receiving surface may be inclined upward toward the free end. When small media are ejected onto such an upwardly inclined surface, the ejected media may return to the base tray, easily causing the problem of getting stuck. Furthermore, if the leading edge of the ejection tray is equipped with a stopper to prevent media from falling out, the ejected media may come into contact with the stopper and bounce back, easily causing the problem of getting stuck.

[0007] The present invention has been made in view of such problems, and its object is to more reliably prevent ejected media from getting stuck in the tray. [Means for solving the problem]

[0008] In order to solve the above problem, a media ejection device according to a first aspect of the present invention comprises an ejection means for ejecting media, and a media receiving tray that receives the media ejected by the ejection means and is switchable between an unfolded state and a stored state, wherein the media receiving tray comprises a base tray, a main unfolding section that can be stored and unfolded and is located on the media ejection direction side of the base tray in the unfolded state, and at least one sub-unfolding section that can be stored and unfolded and is located on the media ejection direction side of the main unfolding section in the unfolded state, and the base tray is characterized in that it has a storage space formed to store at least one of the sub-unfolding sections, and is provided with a first protrusion that protrudes toward the storage space.

[0009] According to this aspect, the medium receiving tray, which can be switched between an expanded state and a storage state, includes a base tray, a main expansion section, and a sub-expansion section. The base tray has a storage space that stores at least one sub-expansion section. When the sub-expansion section is expanded, there is a risk that ejected media may enter the storage space or a space deeper than the storage space. However, in this aspect, the storage space in the base tray has a first protrusion that protrudes toward the storage space, and the first protrusion prevents media from entering the storage space or a space deeper than the storage space.

[0010] A second aspect of the present invention is characterized in that, in the first aspect, a second protrusion is provided at a position in the main expansion section facing the storage space, the second protrusion protruding into the storage space and having a portion that overlaps with the first protrusion in the thickness direction of the media receiving tray, and the overlap between the first protrusion and the second protrusion is maintained regardless of the expansion position of the main expansion section.

[0011] According to this aspect, a second protrusion is provided in the main expansion section at a position facing the storage space, the second protrusion protruding into the storage space and having a portion overlapping with the first protrusion in the thickness direction of the medium receiving tray, and the overlap between the first protrusion and the second protrusion is maintained regardless of the expansion position of the main expansion section. Therefore, it is possible to prevent media from entering the storage space or further behind the storage space not only when the main expansion section is fully expanded but also when it is half expanded. As a result, it is possible to provide a medium ejection device that can more reliably prevent media from entering the storage space or further behind the storage space.

[0012] A third aspect of the present invention is characterized in that, in the second aspect, one of the first protrusion and the second protrusion is composed of a first rib extending in the medium ejection direction, and the other of the first protrusion and the second protrusion is composed of a second rib extending in a direction intersecting the medium ejection direction.

[0013] According to this aspect, one of the first protrusion and the second protrusion is composed of a first rib extending in the media discharge direction, and the other of the first protrusion and the second protrusion is composed of a second rib extending in a direction intersecting the media discharge direction, thereby more reliably preventing media from entering the storage space or further back than the storage space.

[0014] A fourth aspect of the present invention is characterized in that, in the third aspect, the first ribs are arranged at appropriate intervals in a direction intersecting the medium discharge direction, and the maximum spacing between the first ribs is smaller than the size of the medium that has the smallest size in the medium width direction, which is the direction intersecting the medium discharge direction, among the media that can be discharged by the discharge means.

[0015] According to this aspect, the first ribs are arranged at appropriate intervals in a direction intersecting the media ejection direction, and the maximum spacing between the multiple first ribs is smaller than the size of the smallest medium in the media width direction intersecting the media ejection direction, among the media that can be recorded by the recording means and ejected by the ejection means.Therefore, regardless of the size of the medium, it is possible to effectively regulate the entry of the medium into the storage space or even further back than the storage space.

[0016] A fifth aspect of the present invention is characterized in that, in any of the first to fourth aspects, the sub-expansion section is configured to include a tip expansion section that is located furthest from the media discharge direction in the expanded state, and a stopper section that is slidable relative to the tip expansion section and that can be switched between a restricting position that rotates to form a surface that intersects with the media receiving surface to restrict the media from popping out, and a storage position that is a position that is aligned with the media receiving surface.

[0017] According to this aspect, the device is provided with a stopper portion that can be switched between a restricting position that forms a surface that intersects with the media receiving surface by rotating to restrict the media from popping out, and a storage position that is a position that aligns with the media receiving surface, so that the stopper can prevent the media from popping out of the media receiving tray when the media is ejected.

[0018] A sixth aspect of the present invention is characterized in that, in the fifth aspect, the tip deployment portion is formed with a plurality of recesses along the sliding direction of the stopper portion, and the stopper portion is formed with protrusions that fit into the recesses when the stopper portion is switched from the storage position to the regulating position.

[0019] According to this aspect, the tip deployment portion has a plurality of recesses formed along the sliding direction of the stopper portion, and the stopper portion has protrusions formed thereon that fit into the recesses when the stopper portion is switched from the storage position to the restricting position. Therefore, the engagement between the recesses and the protrusions can reliably hold the stopper portion in a desired position. In particular, this can prevent the stopper portion from shifting in position when the ejected media presses on it.

[0020] A seventh aspect of the present invention is characterized in that, in the fifth or sixth aspect, it comprises a switching means for switching the position of the stopper portion and a control means for controlling the switching means, and the control means, based on size information of the medium to be discharged, tilts the stopper portion from the regulating position to the upstream or downstream side in the medium discharge direction if the leading edge of the medium to be discharged exceeds the position of the stopper portion when discharged into the medium receiving tray.

[0021] According to this aspect, the device is provided with a switching means for switching the position of the stopper portion and a control means for controlling the switching means, and the control means, based on size information of the medium to be discharged, tilts the stopper portion from the regulating position to the upstream or downstream side in the media discharge direction if the leading edge of the medium to be discharged exceeds the position of the stopper portion when discharged into the media receiving tray, thereby avoiding the problem of the stopper portion interfering with the discharge of long media when discharging long media.

[0022] An eighth aspect of the present invention is characterized in that, in any of the fifth to seventh aspects, the base tray can be stored and deployed relative to the housing of the medium ejection device, and is equipped with a locking means that locks the base tray, the main deployment section, and the sub-deployment section in a stored state by switching the stopper section from the regulating position to the storage position, and releases the lock by switching the stopper section from the storage position to the regulating position.

[0023] According to this aspect, the base tray can be stored and deployed relative to the housing of the medium ejection device, and a locking mechanism is provided that locks the base tray, the main deployment section, and the sub-deployment section in the stored state by switching the stopper section from the restricting position to the storage position, and unlocks the lock by switching the stopper section from the storage position to the restricting position. Therefore, it is possible to avoid the problem of the medium receiving tray unintentionally being deployed, for example, when carrying the device. In addition, because the locking mechanism is operated by the stopper section, there is no need to provide a dedicated operating member, which reduces the cost of the device.

[0024] An image reading device according to a ninth aspect of the present invention is characterized by comprising a reading means for reading the surface of a medium, and a medium discharge device according to any one of the first to eighth aspects, which is provided downstream of the reading means in the medium transport direction. According to this aspect, in the image reading device, it is possible to obtain the same effects as any one of the first to eighth aspects described above. [Brief explanation of the drawings]

[0025] [Figure 1] FIG. 2 is a perspective view of the image reading device according to the present invention in a state where a medium is not being fed. [Figure 2] 1 is a perspective view showing an image reading device according to the present invention with the cover open and the medium receiving tray unfolded; [Figure 3] FIG. 2 is a side view showing a medium feeding path in the image reading device according to the present invention. [Figure 4] FIG. 10 is a perspective view showing the base tray of the medium receiving tray in an expanded state. [Figure 5] 10 is a side view showing the state in which the main deployment section is deployed from the base tray in the medium receiving tray. FIG. [Figure 6] 10 is a side view showing the state in which the first sub-deployment section is deployed from the main deployment section in the medium receiving tray. FIG. [Figure 7] 10 is a side view showing the state in which the leading end extension portion is extended from the first sub-extension portion in the medium receiving tray. FIG. [Figure 8] FIG. [Figure 9] FIG. 4 is a perspective view of the main deployment section as seen from above. [Figure 10] FIG. 10 is a bottom view of the base tray and the main deployment section when the main deployment section is stored in the base tray. [Figure 11] FIG. 10 is a bottom view showing the relationship between the first rib and the second rib when the main deployment section is stored in the base tray. [Figure 12] 10 is a bottom view of the base tray and the main deployment section in a state in which the main deployment section is in the process of being switched from a stored state to a deployed state relative to the base tray. FIG. [Figure 13] 10 is a bottom view showing the relationship between the first rib and the second rib in a state in which the main deployment section is in the process of switching from the stored state to the deployed state relative to the base tray. FIG. [Figure 14] FIG. 14 is a cross-sectional side view taken along the line AA in FIG. [Figure 15]10 is a bottom view of the base tray, the main deployment section, and the sub-deployment section when the main deployment section and the sub-deployment section are deployed relative to the base tray. FIG. [Figure 16] FIG. 10 is a bottom view showing the relationship between the first rib and the second rib when the main deployment section is deployed relative to the base tray. [Figure 17] FIG. 10 is a perspective view showing the stored position of the stopper portion in the distal end deployment portion. [Figure 18] FIG. 10 is a perspective view showing the restricting position of the stopper portion in the distal end deployment portion. [Figure 19] FIG. 10 is a perspective view showing a state in which the stopper portion is slid in the distal end deployment portion. [Figure 20] FIG. 10 is a perspective view showing a modified example of the embodiment of the tip deployment portion and the stopper portion. [Figure 21] FIG. 10 is a side cross-sectional view showing a slider lock structure in a modified example of the stopper portion. [Figure 22] FIG. 10 is a schematic diagram of a medium receiving tray according to a second embodiment. [Figure 23] FIG. 11 is a side cross-sectional view showing a locked state of the main deployment section and the sub deployment section in the medium receiving tray according to the third embodiment. [Figure 24] FIG. 11 is a side cross-sectional view showing the unlocked state of the main deployment section and the sub deployment section in the medium receiving tray in the third embodiment. [Figure 25] FIG. 2 is a perspective view showing an image reading unit in the image reading device. [Figure 26] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0026] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each embodiment, the same components are designated by the same reference numerals, and will be described only in the first embodiment. In subsequent embodiments, the description of the components will be omitted.

[0027] Figure 1 is an oblique view of an image reading device according to the present invention in a state where no media is being fed, Figure 2 is an oblique view of an image reading device according to the present invention in a state where the cover is open and the media receiving tray is unfolded, Figure 3 is a side view showing the media feeding path in an image reading device according to the present invention, Figure 4 is an oblique view showing the unfolded state of the base tray of the media receiving tray, Figure 5 is a side view showing the state where the main unfolding section is unfolded from the base tray in the media receiving tray, and Figure 6 is a side view showing the state where the first sub-unfolding section is unfolded from the main unfolding section in the media receiving tray.

[0028] Figure 7 is a side view showing the state in which the tip expansion section is expanded from the first sub-expansion section in the medium receiving tray, Figure 8 is an oblique view of the base tray from below, Figure 9 is an oblique view of the main expansion section from above, Figure 10 is a bottom view of the base tray and main expansion section when the main expansion section is stored in the base tray, Figure 11 is a bottom view showing the relationship between the first rib and the second rib when the main expansion section is stored in the base tray, and Figure 12 is a bottom view of the base tray and main expansion section when the main expansion section is in the process of switching from a stored state to an expanded state relative to the base tray.

[0029] Figure 13 is a bottom view showing the relationship between the first rib and the second rib when the main deployment section is in the process of switching from a stored state to a deployed state relative to the base tray, Figure 14 is a side cross-sectional view along section AA in Figure 13, Figure 15 is a bottom view of the base tray, main deployment section, and sub-deployment section when they are deployed relative to the base tray, Figure 16 is a bottom view showing the relationship between the first rib and the second rib when the main deployment section is deployed relative to the base tray, Figure 17 is a perspective view showing the stored position of the stopper section in the leading end deployment section, Figure 18 is a perspective view showing the restricted position of the stopper section in the leading end deployment section, and Figure 19 is a perspective view showing the state when the stopper section is slid in the leading end deployment section.

[0030] Figure 20 is an oblique view showing a modified example of the embodiment of the tip expansion portion and the stopper portion, Figure 21 is a side cross-sectional view showing the slider lock structure in a modified example of the stopper portion, Figure 22 is a schematic diagram of the media receiving tray in the second embodiment, Figure 23 is a side cross-sectional view showing the locked state of the main expansion portion and the sub-expansion portion in the media receiving tray in the third embodiment, Figure 24 is a side cross-sectional view showing the unlocked state of the main expansion portion and the sub-expansion portion in the media receiving tray in the third embodiment, Figure 25 is an oblique view showing the image reading portion in the image reading device, and Figure 26 is a cross-sectional view of the discharge drive roller.

[0031] In addition, in the XYZ coordinate system shown in each figure, the X direction is the device width direction and also the paper width direction, the Y direction is the medium transport direction in the image reading device, and the Z direction is the direction perpendicular to the Y direction, which generally indicates the direction perpendicular to the surface of the transported medium. In each figure, the -Y direction side is the front side of the device, and the +Y direction side is the rear side of the device.

[0032] First Example <<<About image reading devices>>> 1 and 2, scanner 10 as an "image reading device" includes a lower unit 12, an upper unit 14, a cover 16, and a medium discharge device 18. Medium discharge device 18 includes a pair of discharge rollers 20 (see FIG. 3) and a medium receiving tray 22 (see FIG. 2), which will be described later. The outer shells of lower unit 12 and upper unit 14 form the housing of scanner 10.

[0033] Furthermore, a cover section 16 is attached to the upper part of the rear side of the lower unit 12 so as to be rotatable relative to the lower unit 12. The cover section 16 can be in a non-feeding state in which it covers the upper part of the upper unit 14 and the feed opening 26 (see FIG. 2) as shown in FIG. 1, or in a feed-enabled state in which it rotates from the non-feeding state of FIG. 1 to the rear side of the device as shown in FIG. 2 and opens the feed opening 26. When the cover section 16 is in the feed-enabled state as shown in FIG. 2, the back surface of the cover section 16 functions as a medium placement surface 16a on which multiple media P are placed.

[0034] Furthermore, a discharge port 28 for discharging media P is provided on the front side of the device of the lower unit 12. The lower unit 12 also has a media receiving tray 22 that can be pulled out from the discharge port 28 toward the front side of the device. The media receiving tray 22 can be switched between a stored state (see FIG. 1) in which it is stored in the bottom of the lower unit 12, and an expanded state (see FIG. 2) in which it is pulled out toward the front side of the device. As will be described later, the media receiving tray 22 is made up of multiple connected tray members, and is configured so that the length that it is pulled out from the discharge port 28 can be adjusted depending on the length of the media P to be discharged.

[0035] <Paper feed path in scanner> Next, the medium feeding path 24 in the scanner 10 will be described, mainly with reference to Figure 3. Note that in Figure 3, only the outer peripheries of the lower unit 12, upper unit 14, and medium receiving tray 22 are shown by virtual lines, and the thick solid line marked with the symbol P indicates the guide path for paper fed along the medium feeding path 24 within the scanner 10.

[0036] On the medium feeding path 24, provided in order from the upstream side to the downstream side in the feeding direction are a medium placing surface 16a, a feeding roller 30, a separation roller 32, a transport roller pair 34, an image reading unit 36 ​​as a "reading means", a discharge roller pair 20 as a "discharge means", and a medium receiving tray 22. The medium P is fed along the medium feeding path 24 to the image reading unit 36, and after at least one side of the medium P is read by the image reading unit 36, it is discharged to the medium receiving tray 22.

[0037] The feed roller 30 is configured to be rotated by a driving source (not shown). The outer peripheral surface of the feed roller 30 is made of a high-friction material (for example, an elastomer such as rubber). A separation roller 32 is provided at a position facing the feed roller 30. The separation roller 32 is provided in a state where it is biased against the feed roller 30 by a biasing means (not shown). The outer peripheral surface of the separation roller 32 is made of a high-friction material (for example, an elastomer such as rubber) like the feed roller 30.

[0038] Further, the separation roller 32 is provided with a torque limiter 38. The separation roller 32 is configured to receive a driving torque from a torque applying means (not shown) or a driving source such as a motor via the torque limiter 38 in a direction opposite to the rotation direction (clockwise in FIG. 3) that feeds the document downstream. When the separation roller 32 is in direct contact with the feed roller 30, the rotational torque received from the feed roller 30 exceeds the limit torque of the torque limiter 38, and therefore the separation roller 32 rotates in response to the feed roller 30 (clockwise in FIG. 3).

[0039] The transport roller pair 34 includes a transport drive roller 34a and a transport driven roller 34b that rotates following the transport drive roller 34a. In this embodiment, the transport drive roller 34a is configured to be rotated by a drive source (not shown).

[0040] An image reading unit 36 ​​is provided downstream of the transport roller pair 34. Here, the image reading unit 36 ​​includes an upper reading unit 40 provided in the upper unit 14 so as to face the upper surface of the medium P transported along the medium feed path 24, and a lower reading unit 42 provided in the lower unit 12 so as to face the lower surface of the medium P transported along the medium feed path 24. The upper reading unit 40 and the lower reading unit 42 are configured as reading units, and as an example, are configured as contact image sensor modules (CISMs).

[0041] The discharge roller pair 20 includes a discharge drive roller 44 and a discharge driven roller 46 that rotates following the discharge drive roller 44. The discharge drive roller 44 is driven to rotate by a drive source (not shown).

[0042] 25 and 26, two discharge drive rollers 44 are provided at a distance from each other in the width direction of the device. The two discharge drive rollers 44 are attached to the drive shaft 48 so as to rotate together with the drive shaft 48. In addition, auxiliary rollers 50 are lightly press-fitted onto the drive shaft 48 on the outer sides of the discharge drive rollers 44 in the width direction of the device. The discharge drive roller 44 and the auxiliary roller 50 are attached to the drive shaft 48 with a gap 52 therebetween in the width direction of the device.

[0043] When the discharge roller pair 20 in the scanner 10 discharges a thin medium, the trailing end of the medium P may remain on the discharge drive roller 44. When discharging a thin medium, the auxiliary roller 50 pushes the trailing end of the medium P in the discharge direction, ensuring that the trailing end of the medium P is separated from the discharge drive roller 44. Furthermore, because a gap 52 is provided between the auxiliary roller 50 and the discharge drive roller 44, when the auxiliary roller 50 rotates idly relative to the drive shaft 48, the auxiliary roller 50 can be prevented from coming into contact with the discharge drive roller 44 and becoming worn.

[0044] The lower unit 12 also includes a control unit 54, which serves as a "control means," as an example. The control unit 54 is configured as an electric circuit including a plurality of electronic components. The control unit 54 controls the upper reading unit 40 and the lower reading unit 42. The control unit 54 also controls drive sources (not shown), such as drive motors that rotate the feed roller 30, the transport drive roller 34a, and the discharge drive roller 44.

[0045] The control unit 54 is also configured to control the transport of the medium P and the image reading operation in the scanner 10. The control unit 54 may also control the operations required to execute the document reading operation in the scanner 10 in response to instructions from an external device (such as a PC).

[0046] <<<About the media tray configuration>>> The configuration of the medium receiving tray 22 will be described with reference to Figures 4 to 20. As shown in Figures 2 and 4 to 7, the medium receiving tray 22 includes a base tray 56, a main deployment section 58, and a sub-deployment section 60. The sub-deployment section 60 includes a first sub-deployment section 61, a tip deployment section 62, and a stopper section 64. In the following description, the discharge direction of the medium P is defined as the front side in the device depth direction, the sliding direction between the components is defined as the device depth direction, and the width direction of the medium P is defined as the device width direction.

[0047] The base tray 56 is configured to be slidable relative to the lower unit 12, and can be switched between a storage state (see FIG. 1) in which it is stored within the lower unit 12, and a deployed state (see FIG. 4) in which it is deployed from within the lower unit 12 in the direction in which the medium P is discharged, i.e., toward the front in the depth direction of the device. The main deployment section 58 is also attached to the base tray 56 so as to be slidable. The main deployment section 58 is configured to be switchable between a storage state (see FIG. 4) in which it is stored within the base tray 56, and a deployed state (see FIG. 5) in which it is slid from the base tray 56 toward the front in the depth direction of the device.

[0048] The first sub-deployment section 61 is slidably attached to the main deployment section 58. The first sub-deployment section 61 is configured to be switchable between a stored state (see FIG. 4) in which it is stored in the main deployment section 58, and a deployed state (see FIG. 6) in which it is slid from the main deployment section 58 toward the front side of the medium P in the depth direction of the device. The leading end deployment section 62 is slidably attached to the first sub-deployment section 61. The leading end deployment section 62 is configured to be switchable between a stored state (see FIG. 4) in which it is stored in the first sub-deployment section 61, and a deployed state (see FIG. 7) in which it is slid from the first sub-deployment section 61 toward the front side of the medium P in the depth direction of the device.

[0049] Therefore, the media receiving tray 22 can be expanded from a state in which the base tray 56, main expansion section 58, first sub-expansion section 61 and tip expansion section 62 are stored in the lower unit 12 as shown in Figure 1 to a state in which the base tray 56, main expansion section 58, first sub-expansion section 61 and tip expansion section 62 are successively pulled out in the direction of media P discharge as shown in Figures 4 to 7, and expanded to the front side of the lower unit 12 in the device depth direction (see Figure 2).

[0050] <<<About the base tray>>> Next, the base tray 56 will be described with reference to Figures 4 and 8. The base tray 56 includes a flat main body 56a and a pair of side walls 56b extending in the depth direction of the device at both ends of the main body 56a in the device width direction. The upper surface of the main body 56a is configured as a tray surface that receives the medium P discharged from the discharge opening 28. The lower surface of the main body 56a, in the central portion in the device width direction, is configured as a recess 56c that is recessed toward the upper surface. The recess 56c is provided with a first protrusion 66 that protrudes downward in the device height direction, that is, toward the main expansion section 58 when the main expansion section 58 is attached.

[0051] As an example, the first protrusion 66 includes a plurality of first ribs 68 extending in the depth direction of the device. The plurality of first ribs 68 are formed in the recess 56c at appropriate intervals in the width direction of the device. In FIG. 8, the first rib 68 includes four ribs 68a, 68b, 68c, and 68d. In the width direction of the device, the first rib 68a and the first rib 68b are spaced apart by a distance L1, the first rib 68b and the first rib 68c are spaced apart by a distance L2, and the first rib 68c and the first rib 68d are spaced apart by a distance L1. Here, the distance L2 is set larger than the distance L1. The distance between the first rib 68a and the first rib 68d is set to be L3.

[0052] The arrangement distance L2 (see FIG. 8) between the first ribs 68b and 68c provided in the recess 56c in the device width direction is set smaller than the size of the medium P with the smallest width in the device width direction among the media P that can be discharged by the discharge roller pair 20. Here, the medium P with the smallest width in the device width direction includes, for example, media such as business cards and cards. The arrangement distance L2 is set smaller than the short side of a card-shaped medium, for example. The arrangement distance L3 (see FIG. 8) between the first ribs 68a and 68d in the device width direction is set smaller than the long side of a card-shaped medium.

[0053] As an example, when the scanner 10 transports the card-shaped medium P with its short side aligned with the width direction of the device and discharges it into the medium receiving tray 22, the arrangement interval L2 becomes the maximum arrangement interval in the first rib 68, and when the scanner 10 transports the card-shaped medium P with its long side aligned with the width direction of the device and discharges it into the medium receiving tray 22, the arrangement interval L3 becomes the maximum arrangement interval in the first rib 68.

[0054] The side wall 56b has a plurality of protrusions 56d protruding inward on its inner surface in the width direction of the device, and a groove 56e extending along the depth direction of the device on its outer surface in the width direction of the device. The groove 56e engages with a guide portion (not shown) provided in the lower unit 12. This allows the base tray 56 to slide relative to the lower unit 12.

[0055] <<<About the main development section>>> Next, the main deployment section 58 will be described with reference to Figures 4 and 9. The main deployment section 58 has a plurality of ribs 58a on its upper surface that extend along the depth direction of the device and are provided at appropriate intervals in the width direction of the device. The ribs 58a are configured to support at least a portion of the medium P discharged from the discharge opening 28 from below in the height direction of the device. In addition, grooves 58b that extend in the depth direction of the device are formed at both ends of the main deployment section 58 in the width direction of the device.

[0056] The grooves 58b receive the protrusions 56d of the base tray 56 when the main deployment section 58 is attached to the base tray 56. The protrusions 56d are relatively movable within the grooves 58b in the depth direction of the device, allowing the main deployment section 58 to slide relative to the base tray 56. In addition, when the main deployment section 58 is attached to the base tray 56, the base tray 56 covers at least a portion of the main deployment section 58 from above.

[0057] Furthermore, a recess 58c recessed downward is formed in the central portion of the main deployment section 58 in the width direction of the device. When the main deployment section 58 is attached to the base tray 56, the recess 56c of the base tray 56 and the recess 58c of the main deployment section 58 are provided at corresponding positions in the width direction of the device. The recess 56c and the recess 58c are combined to form a rectangular space. This space functions as a storage space 70 (see FIG. 14) that stores the first sub-deployment section 61 and the tip deployment section 62 attached to the main deployment section 58.

[0058] Furthermore, a second protrusion 72 is provided at the end of the main deployment section 58 on the rear side in the depth direction of the device, in the center in the width direction of the device, i.e., at a position facing the storage space 70. The second protrusion 72 has a plurality of second ribs 74 extending along the width direction of the device. The second ribs 74 protrude upward in the height direction of the device, i.e., toward the base tray 56. As an example, the plurality of second ribs 74 are arranged in a row along the width direction of the device at appropriate intervals in the width direction of the device, in the order of ribs 74a, 74b, 74c.

[0059] Gaps 76 are provided between the second ribs 74a and 74b, and between the second ribs 74b and 74c. The gaps 76 in the device width direction are set to a size that allows the first ribs 68b and 68c to pass through the gaps 76 when the main deployment section 58 is slid in the device depth direction relative to the base tray 56. The lengths of the second ribs 74a and 74c in the device width direction are set to be shorter than the arrangement distance L1 between the first ribs 68a and 68b and the arrangement distance L1 between the first ribs 68c and 68d. The length of the second rib 74b in the device width direction is set to be shorter than the arrangement distance L2 between the first ribs 68b and 68c.

[0060] 14, when the main extension section 58 is attached to the base tray 56, the first rib 68 protrudes from the base tray 56 toward the main extension section 58, and the second rib 74 protrudes from the main extension section 58 toward the base tray 56. That is, the first rib 68 and the second rib 74 have overlapping portions in the thickness direction of the medium receiving tray 22. The first rib 68 and the second rib 74 overlap within a region W in the device height direction. FIG. 14 also schematically illustrates the medium receiving tray 22.

[0061] <<<Regulations on the entry of media into storage spaces>>> The relationship between the first rib 68 and the second rib 74 will be further described with reference to Figures 10 to 16. Note that the sub-deployment section 60 is not shown in Figures 11, 13, and 13. With reference to Figures 10 and 11, the main deployment section 58 is stored in the base tray 56. As shown in Figure 11, the first ribs 68b and 68c fit into the gaps 76 between the second ribs 74a and 74b and between the second ribs 74b and 74c, respectively.

[0062] The length of the second ribs 74a, 74c in the device width direction is set shorter than the arrangement distance L1 between the first ribs 68a and 68b and the arrangement distance L1 between the first ribs 68c and 68d, and the length of the second rib 74b in the device width direction is set shorter than the arrangement distance L2 between the first ribs 68b and 68c. Therefore, even if the main deployment section 58 is slid in the device depth direction relative to the base tray 56, the first rib 68 and the second rib 74 do not interfere with each other (see FIGS. 11, 13, and 16). Furthermore, even if the first rib 68 and the second rib 74 move relative to each other, the overlapping portions in the thickness direction of the medium receiving tray 22 are maintained.

[0063] 4, 10, and 11, when the main deployment section 58 is stored in the base tray 56 and the first sub-deployment section 61 and the tip deployment section 62 are also stored in the main deployment section 58, when the medium P is discharged from the discharge port 28 and bounced back toward the base tray 56 by the stopper section 64, there is a risk that the medium P will enter the storage space 70 or further inside the storage space 70. However, because the storage space 70 is provided with the first rib 68 and the second rib 74, it is possible to prevent the bounced back medium P from entering into the storage space 70 or further inside the storage space 70.

[0064] 12 to 14, when the main deployment section 58 is slid toward the front in the depth direction of the device relative to the base tray 56 and is semi-deployed, the second ribs 74a, 74b, 74c are located closer to the front in the depth direction of the device than the first ribs 68b, 68c. In this state, the first sub-deployment section 61 and the tip deployment section 62 are in a deployed state in which they are pulled out toward the front in the depth direction of the device from the storage space 70.

[0065] Here, when medium P is discharged from discharge port 28 and bounced back toward base tray 56 by stopper portion 64, medium P may become tilted toward the depth of the device. Even when medium P bounced back toward base tray 56 by stopper portion 64 in the semi-deployed state of main deployment section 58 and tilted toward the depth of the device, at least one of first rib 68a and first rib 68d comes into contact with at least a portion of the tilted medium P, thereby preventing medium P from entering storage space 70.

[0066] Furthermore, since the first rib 68 and the second rib 74 have overlapping portions in the thickness direction of the medium receiving tray 22, even if the medium P gets between the first rib 68a and the first rib 68d in the device width direction, the second rib 74 prevents the medium P from getting into the storage space 70 or further beyond the storage space 70 in the device depth direction. As a result, even when the main deployment section 58 is in a semi-deployed state with respect to the base tray 56, the first protrusion 66 (first rib 68) and the second protrusion 72 (second rib 74) can prevent the medium P from getting into the storage space 70.

[0067] Next, referring to Figures 15 and 16, when the main deployment section 58 is further slid toward the front in the depth direction of the device relative to the base tray 56 and fully deployed, the second ribs 74a, 74b, 74c are positioned closer to the front in the depth direction of the device than in the state shown in Figure 13.

[0068] Even when the main deployment section 58 is in a fully deployed state, when the medium P is discharged from the discharge outlet 28 and bounced back toward the base tray 56 by the stopper section 64, at least one of the first rib 68a and the first rib 68d comes into contact with at least a portion of the medium P, thereby preventing the medium P from entering the storage space 70.

[0069] Furthermore, since the second ribs 74a, 74b, 74c are located further towards the front in the depth direction of the device, even if the medium P gets between the first rib 68a and the first rib 68d in the width direction of the device, the second rib 74 more reliably prevents the medium P from getting into the storage space 70 or even further back than the storage space 70 in the depth direction of the device.

[0070] Here, the first rib 68 and the second rib 74 have overlapping portions in the thickness direction of the medium receiving tray 22, and the first rib 68 and the second rib 74 can move relative to each other in the depth direction of the device without interfering with each other, so the overlap between the first rib 68 and the second rib 74 is maintained regardless of the deployment position of the main deployment section 58 relative to the base tray 56. This makes it possible to prevent media P from entering the storage space 70 or even further back than the storage space 70, whether the main deployment section 58 is in the semi-deployed or fully deployed state.

[0071] <<<About the stopper part>>> 17 to 19, the stopper portion 64 will be described. The stopper portion 64 includes a slider 80 and a stopper 78. The slider 80 is configured to be slidable along the depth direction of the device relative to the medium receiving surface 62a of the leading end deployment portion 62.

[0072] The stopper portion 64 is attached to the tip deployment portion 62. Referring to Figures 17 and 18, the stopper 78 is attached rotatably to the slider 80. As an example, the stopper 78 is switchable between a storage position, which is a position along the medium receiving surface 62a as shown in Figure 17, and a restricting position, which forms a surface that intersects with the medium receiving surface 62a and restricts the medium P from popping out.

[0073] <<<Examples of stopper part modifications>>> 20 and 21, a modified example of the stopper portion 64 will be described. A plurality of recesses 82 are formed at appropriate intervals in the medium receiving surface 62a along the depth direction of the device. The stopper 78 is attached to the slider 80 so as to be rotatable around a rotation shaft 84 as a fulcrum. A protrusion 86 that can mesh with one of the plurality of recesses 82 is formed on the opposite side of the rotation shaft 84 in the stopper 78.

[0074] As shown in Figure 21, when the stopper 78 switches from the storage position (see Figure 17) to the restricting position, the convex portion 86 engages with at least one of the multiple concave portions 82. This prevents the slider 80 from sliding relative to the medium receiving surface 62a and locks it. Therefore, even if the medium P discharged from the discharge opening 28 hits the stopper 78 with great force, the stopper portion 64 is locked relative to the tip extension portion 62, so that misalignment of the stopper portion 64 can be prevented and the medium can be received reliably on the medium receiving surface 62a.

[0075] On the other hand, when the stopper 78 in the restricting position is rotated toward the medium receiving surface 62a around the rotation shaft 84 as a fulcrum, the convex portion 86 rotates in a direction away from the medium receiving surface 62a and is released from engagement with the concave portion 82. As a result, the locked state of the slider 80 is released, and it becomes possible to slide in the depth direction of the device relative to the medium receiving surface 62a.

[0076] <<<Modification of the First Embodiment>>> The first protrusion 66 is configured to have a plurality of first ribs 68 extending in the depth direction of the device, and the second protrusion 72 is configured to have a plurality of second ribs 74 extending in the width direction of the device, but instead of this configuration, the first protrusion 66 may be configured to have a plurality of second ribs 74, and the second protrusion 72 may be configured to have a plurality of first ribs 68.

[0077] Second Example A second embodiment of a medium ejection device 88 will be described with reference to Figure 22. Note that Figure 22 is a schematic diagram of the medium ejection device 88 of the second embodiment. The medium ejection device 88 of the second embodiment differs from the first embodiment in that the stopper 90a of the stopper portion 90 is switched between a storage position and a restricting position depending on the length in the ejection direction of the ejected medium P. Note that while Figure 22 simplifies the configuration of the medium receiving tray 92 and illustrates it as two tray members, it may be configured with two or more tray members, and may also be configured to include a base tray 56, a main deployment section 58, a first sub-deployment section 61, and a tip deployment section 62, as in the first embodiment.

[0078] As shown in FIG. 22, the medium discharge device 88 includes a medium receiving tray 92 and a switching means 94 for switching the position of the stopper 90 a of the stopper portion 90 .

[0079] The medium receiving tray 92 is composed of, for example, a tray member 92a and a tray member 92b. The tray member 92a is configured to be slidable relative to the lower unit 12 and can be switched between a stored state and an unfolded state. The tray member 92b is configured to be slidable relative to the tray member 92a and can be switched between a stored state and an unfolded state. A stopper portion 90 is attached to the tip of the tray member 92b in the device depth direction.

[0080] The switching means 94, for example, includes a drive motor 96, a drive pulley 98, a transmission pulley 100, a driven pulley 102, and drive belts 104 and 106, all of which are provided within the lower unit 12. The drive pulley 98 is attached to the drive shaft of the drive motor 96 and is driven to rotate by the drive motor 96. The drive belt 104 is wound around the drive pulley 98 and the transmission pulley 100. The driven pulley 102 is attached to the rotation shaft of the stopper 90a. The drive belt 106 is wound around the transmission pulley 100 and the driven pulley 102.

[0081] By rotating the drive motor 96 in the forward or reverse direction, the rotational drive force of the drive motor 96 can be transmitted to the driven pulley 102 via the drive pulley 98, drive belt 104, transmission pulley 100, and drive belt 106, and the stopper 90a can be switched from the restricting position to the stored position, or from the stored position to the restricting position. The two-dot chain line in Figure 22 indicates the stored state of the stopper 90a. Note that, as an example, in Figure 22, the stopper 90a is configured to tilt downstream in the discharge direction of the medium P, but it may also be configured to tilt upstream in the discharge direction.

[0082] Based on size information about the medium P to be discharged, when the leading edge of the medium P to be discharged passes the position of the stopper 90a of the stopper portion 90 as the medium P is discharged into the medium receiving tray 92, the control portion 54 drives the drive motor 96 to switch the stopper 90a from the restricting position to the storing position. This prevents the stopper portion 90 from interfering with the discharge of the medium P when the medium P is long in the discharge direction. Note that the size information about the medium P to be discharged may be obtained not only from the driver information input to the control portion 54, but also from a detection signal of the medium P from a medium detection sensor (not shown) provided within the scanner 10.

[0083] Third Example Next, a third embodiment of the medium ejection device 108 will be described with reference to Figures 23 and 24. Figures 23 and 24 are schematic diagrams of the medium ejection device 108 of the third embodiment. The medium ejection device 108 of the third embodiment differs from the first embodiment in that it is provided with a locking mechanism that locks the medium receiving tray 110 in a stored state relative to the scanner 10.

[0084] The stopper portion 112 includes a stopper 114, a slider 116, a lock pin 118 as a "locking means," and a biasing means 120. The stopper 114 is attached to the slider 116 so as to be rotatable about a rotation shaft 122 as a fulcrum, and is switchable between a restricted position and a stored position. The stopper 114 is also provided with an engaging portion 124 that can engage with the lock pin 118. The biasing means 120 is configured as, for example, a tension spring, one end of which is connected to the slider 116 and the other end of which is connected to the lock pin 118. The biasing means 120 biases the lock pin 118 toward the slider 116.

[0085] Furthermore, the lower unit 12 serving as the "housing" is provided with a hole 12a into which the lock pin 118 can be received.

[0086] 22 , the base tray 56 is stored in the lower unit 12 with the main deployment section 58 and the sub-deployment section 60 both stored. In this state, when the stopper 114 of the stopper portion 112 is moved to the stored state, the engagement portion 124 presses the lock pin 118 toward the lower unit 12 against the biasing force of the biasing means 120. The lock pin 118 then enters the hole 12a of the lower unit 12 via the base tray 56, the main deployment section 58, and the sub-deployment section 60. In this state, the base tray 56, the main deployment section 58, and the sub-deployment section 60 are locked to the lower unit 12 via the lock pin 118. This prevents the medium receiving tray 110 from accidentally popping out of the scanner 10.

[0087] Next, referring to Figure 23, the stopper 114, which is in the stored state, is rotated relative to the slider 116 to switch to the restricting position. This rotation also causes the engagement portion 124 to rotate clockwise in Figure 23 around the rotation shaft 122 as a fulcrum. Then, the lock pin 118 is displaced in the direction of coming out of the hole 12a due to the biasing force of the biasing means 120. As a result, the base tray 56, main deployment portion 58, and sub deployment portion 60 are unlocked from the lower unit 12, making it possible to pull out the medium receiving tray 110 from the scanner 10.

[0088] To summarize the above explanation, the media discharge device 18, 88, 108 comprises a pair of discharge rollers 20 that discharges the media P, and a media receiving tray 22, 92, 110 that can be switched between an unfolded state and a stored state and that receives the media P discharged by the pair of discharge rollers 20; the media receiving tray 22, 92, 110 comprises a base tray 56, a main unfolding section 58 that can be stored and unfolded and is located on the front side of the device depth direction, which is closer to the media discharge direction than the base tray 56 in the unfolded state, and at least one sub-unfolding section 60 that can be stored and unfolded and is located on the front side of the device depth direction, which is closer to the media discharge direction than the main unfolding section 58 in the unfolded state; the base tray 56 has a storage space 70 that stores the at least one sub-unfolding section 60, and is provided with a first protrusion 66 that protrudes toward the storage space 70.

[0089] According to the above configuration, the medium receiving tray 22, 92, 110, which can be switched between an expanded state and a stored state, includes a base tray 56, a main expanding section 58, and a sub-expanding section 60. The base tray 56 is formed with a storage space 70 that stores at least one sub-expanding section 60. Therefore, when the sub-expanding section 60 is expanded, there is a risk that the ejected medium P will enter the storage space 70 or a position further back than the storage space 70. However, in this configuration, the storage space 70 in the base tray 56 is provided with a first protrusion 66 that protrudes toward the storage space 70, and the first protrusion 66 prevents the medium from entering the storage space 70 or a position further back than the storage space 70.

[0090] A second protrusion 72 is provided in the main deployment section 58 at a position facing the storage space 70. The second protrusion 72 protrudes into the storage space 70 and has a portion that overlaps with the first protrusion 66 in the thickness direction of the medium receiving tray 22, and the overlap between the first protrusion 66 and the second protrusion 72 is maintained regardless of the deployment position of the main deployment section 58. This configuration makes it possible to prevent media P from entering the storage space 70 or further beyond the storage space 70, not only when the main deployment section 58 is fully deployed, but also when it is partially deployed. As a result, it is possible to provide a medium ejection device 18, 88, 108 that can more reliably prevent media P from entering the storage space 70 or further beyond the storage space 70.

[0091] One of the first protrusion 66 and the second protrusion 72 is formed by a first rib 68 extending in the device depth direction, which is the medium ejection direction, and the other of the first protrusion 66 and the second protrusion 72 is formed by a second rib 74 extending in the device width direction, which is the direction intersecting the medium ejection direction. This configuration more reliably prevents the medium P from entering the storage space 70 or further back than the storage space 70.

[0092] The first ribs 68 are provided at appropriate intervals in the device width direction, which is a direction intersecting the medium discharge direction, and the maximum arrangement interval L2 or L3 of the multiple first ribs 68 is smaller than the size of the smallest medium in the medium width direction, which is a direction intersecting the medium discharge direction, among the media P that can be discharged by the discharge roller pair 20. With this configuration, regardless of the size of the media P, it is possible to effectively prevent the media P from entering the storage space 70 or even further back than the storage space 70.

[0093] The sub-expanding section 60 is configured to include a leading end expanding section 62 that, in the expanded state, is located furthest in the media discharge direction, i.e., toward the front in the device depth direction, and stopper sections 64, 90, 112 that are slidable relative to the leading end expanding section 62 and can rotate to switch between a restricting position that forms a surface that intersects with the medium receiving surface 62a to restrict the medium P from popping out, and a storing position that is a position that aligns with the medium receiving surface 62a. With this configuration, the stoppers 80, 90a, 114 can prevent the medium P from popping out of the medium receiving trays 22, 92, 110 when the medium P is being ejected.

[0094] The tip deployment portion 62 is formed with a plurality of recesses 82 along the sliding direction of the stopper portion 64, and the stopper portion 64 is formed with protrusions 86 that fit into the recesses 82 when the stopper portion 64 is switched from the storage position to the restricting position. With this configuration, the recesses 82 engage with the protrusions 86, thereby reliably holding the stopper portion 64 in a desired position. In particular, this makes it possible to prevent the stopper portion 64 from shifting position when the ejected medium P presses on it.

[0095] The device includes a switching means 94 that switches the position of the stopper portion 90, and a control unit 54 that controls the switching means 94. Based on size information about the medium P to be discharged, the control unit 54 tilts the stopper 90a of the stopper portion 90 from the regulated position to the upstream or downstream side in the medium discharge direction if the leading edge of the medium P to be discharged exceeds the position of the stopper portion 90 when being discharged into the medium receiving tray 92. This configuration makes it possible to avoid the problem of the stopper portion 90 interfering with the discharge of long media P.

[0096] The base tray 56 can be stored and deployed relative to the lower unit 12 that constitutes the housing of the medium ejection device 108, and is equipped with a lock pin 118 that locks the base tray 56, main deployment section 58, and sub-deployment section 60 in the stored state by switching the stopper section 112 from the restricting position to the stored position, and unlocks them by switching the stopper section 112 from the stored position to the restricting position. This configuration prevents the medium receiving tray 110 from unintentionally being deployed, for example, when carrying the scanner 10. In addition, because the lock pin 118 is operated by the stopper section 112, there is no need to provide a dedicated operating member, which helps prevent increases in the cost of the device.

[0097] The scanner 10 includes an image reading unit 36 ​​that reads the surface of the medium P, and medium ejection devices 18, 88, 108 that are provided downstream of the image reading unit 36 ​​in the medium transport direction. [Explanation of symbols]

[0098] 10...scanner, 12...lower unit, 12a...hole portion, 14...upper unit, 16...cover portion, 16a...media placement surface, 18, 88, 108...media discharge device, 20...discharge roller pair, 22, 92, 110...media receiving tray, 24...media feeding path, 26...feed port, 28...discharge port, 30...feed roller, 32...separation roller, 34...transport roller pair, 34a...transport drive roller, 3 4b...conveyance driven roller, 36...image reading section, 38...torque limiter, 40...upper reading unit, 42...lower reading unit, 44...discharge drive roller, 46...discharge driven roller, 48...drive shaft, 50...auxiliary roller, 52, 76...gap, 54...control section, 56...base tray, 56a...main body section, 56b...side wall section, 56c, 82...recessed section, 56d, 86...protruding section, 56e...groove section , 58...main extension portion, 58a...rib, 58b...groove portion, 58c...recessed portion, 60...sub-extension portion, 61, first sub-extension portion, 62...tip extension portion, 62a...medium receiving surface, 64, 90, 112...stopper portion, 66...first protrusion portion, 68, 68a, 68b, 68c, 68d...first rib, 70...storage space, 72...second protrusion portion, 74, 74a, 74b, 74c...second rib, 80, 116...slider , 78, 90a, 114...stopper, 84, 122...rotating shaft, 92a, 92b...tray member, 94...switching means, 96...drive motor, 98...drive pulley, 100...transmission pulley, 102...driven pulley, 104, 106...drive belt, 118...lock pin, 120...urging means, 124...engaging portion, L1...arrangement interval, L2...maximum arrangement interval, P...medium, W...overlapping area

Claims

1. a reading means for reading the surface of the medium; an ejection means for ejecting the medium read by the reading means; a medium receiving tray that receives the medium discharged by the discharge means, The medium receiving tray is A base tray and a tray that can be stored and deployed by sliding along a medium ejection direction, the main deployment section being located closer to the medium ejection direction than the base tray when deployed; a tray that can be stored in and deployed relative to the main deployment section by sliding along the medium ejection direction, and a sub-deployment section that is positioned on the medium ejection direction side of the main deployment section in the deployed state; the base tray covers at least a portion of the main deployment section from above, a storage recess for storing the sub-deployment section is formed on an upper surface of the main deployment section; the base tray is provided with a first protrusion extending in the medium ejection direction and protruding toward the main deployment section; the main deployment section is provided with a second protrusion extending in a width direction that intersects with the medium ejection direction and protruding toward the base tray; The sub-expansion section is a stopper section including a stopper that can switch between a restricting position that forms a surface that intersects with a medium receiving surface that receives the medium and restricts the medium from popping out, and a storage position that is a position that follows the medium receiving surface, the stopper section being slidable relative to the medium receiving surface; an engagement means for engaging the medium receiving surface with the stopper; Equipped with The meshing means is a plurality of recesses extending in a direction intersecting a sliding direction of the stopper portion on the medium receiving surface, the recesses being formed along the sliding direction; a protrusion formed on the stopper, the protrusion being capable of engaging with the recess, An image reading device characterized by:

2. 2. The image reading device according to claim 1, The stopper is rotatable about a rotation axis as a fulcrum, and by rotating, switches between an engaged state in which it engages with the recess and a non-engaged state in which it is separated from the recess. An image reading device characterized by:

3. 2. The image reading device according to claim 1, The stopper is rotatable about a rotation shaft as a fulcrum, and switches between the restricting position and the storing position by rotating. An image reading device characterized by:

Images