Image reading device

Abstract

To evade the possible stacking deterioration of a manuscript at a loading unit.SOLUTION: A scanner 1 includes a reading unit 30, a reversing unit 34, an ejection unit 27, a loading unit 46 and a pressing unit 72. The front and back of a manuscript G is reversed by the reversing unit 34. The ejection unit 27 ejects the manuscript G having been reversed by the reversing unit 34 to a -A direction. On the loading unit 46, the manuscript G ejected by the ejection unit 27 is loaded. The pressing unit 72 presses the manuscript G onto the loading unit 46. The pressing unit 72 includes: a moving member 74 which is movable toward the loading unit 46; and an elastic member 89 which applies an elastic force to the moving member 74 so that the moving member 74 comes into contact with the manuscript G on the loading unit 46.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an image reading device. [Background technology]

[0002] The image reading device in Patent Document 1 has a U-shaped transport path along which sheets are transported toward a paper discharge tray, and a sheet pressing member that presses down sheets stacked on the paper discharge tray. The sheet pressing member extends in a substantially tangential direction from the tip of a curved cover. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-246098 Summary of the Invention [Problem to be solved by the invention]

[0004] In the configuration described in Patent Document 1, the sheet pressing member extends tangentially from the tip of the curved cover. Therefore, if a certain number of documents are not stacked on the document placement section, the document may buckle due to insufficient force to press down on the documents, which may reduce the document stackability on the document placement section. [Means for solving the problem]

[0005] In order to solve the above problem, the image reading device of the present invention is an image reading device comprising: a reading unit that reads a document; an inversion unit that inverts the front and back of the document read by the reading unit; an ejection unit that ejects the document inverted in the inversion unit in an ejection direction; and a loading unit on which the document ejected by the ejection unit is placed, and is characterized in that it comprises a pressing unit that presses the document toward the loading unit, and the pressing unit has a moving member that is arranged to be movable toward the loading unit, and an elastic member that imparts an elastic force to the moving member so that the moving member comes into contact with the document on the loading unit. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 10 is a cross-sectional view of the scanner when the device main body is in the normal reading position, as viewed from one side in the width direction. [Figure 2] FIG. 10 is a cross-sectional view of the scanner when the device main body is in a booklet reading position, as viewed from one side in the width direction. [Figure 3] FIG. 2 is a front view of the scanner with the device body in the normal reading position. [Figure 4] FIG. 10 is a perspective view showing a state in which the third unit is opened relative to the second unit. [Figure 5] FIG. 2 is a perspective view of the scanner when the device main body is in the normal reading position, as seen obliquely from the rear. [Figure 6] 10 is a side view showing the positional relationship between the moving member and the operation unit when the scanner is in the normal reading position and viewed from the other side in the width direction. FIG. [Figure 7] 10 is a cross-sectional view of a portion including an operation unit of the scanner when the device body is in a normal reading position, viewed from one side in the width direction. FIG. [Figure 8] Rear view showing the back of the third unit. [Figure 9] FIG. 10 is a plan view of the discharge section of the third unit as seen from above. [Figure 10] FIG. 10 is a perspective view showing a discharge flap provided in the third unit. [Figure 11] FIG. [Figure 12] FIG. 4 is a perspective view showing the rear side of the moving member and the elastic member. [Figure 13] FIG. 4 is a schematic diagram showing the positional relationship between a moving member and a supporting member. [Figure 14] FIG. 10 is a perspective view of the support member in use, seen obliquely from the rear. [Figure 15] FIG. [Figure 16] 10 is a partial cross-sectional view showing a state in which a document discharged from the discharge portion and in contact with a discharge flap is pressed by a pressing portion. FIG. [Figure 17] FIG. 10 is a partial cross-sectional view showing a state in which the traveling direction of the document discharged from the discharge section is changed by the discharge flap. [Figure 18] FIG. 10 is a side view showing a state in which the document discharged from the discharge section is pressed by the pressing section and supported by the support member. [Figure 19] FIG. 10 is a perspective view showing a state in which the moving member is stored in the storage section in the scanner of the modified example. [Figure 20] FIG. 10 is a schematic diagram showing a state in which the moving member of the modified example stands upright due to the return force of the torsion spring. DETAILED DESCRIPTION OF THE INVENTION

[0007] The present invention will be briefly described below. The image reading device of the first aspect is an image reading device comprising: a reading unit that reads a document; an inversion unit that inverts the front and back of the document read by the reading unit; an ejection unit that ejects the document inverted in the inversion unit in an ejection direction; and a loading unit on which the document ejected by the ejection unit is placed, and is characterized in that it comprises a pressing unit that presses the document toward the loading unit, and the pressing unit has a moving member that is arranged to be movable toward the loading unit, and an elastic member that imparts an elastic force to the moving member so that the moving member comes into contact with the document on the loading unit.

[0008] The scanned document is then inverted by the inverting unit. The inverted document is then discharged by the discharge unit and placed on the document placement unit. The document placed on the document placement unit is subjected to its own weight. This may cause a portion of the document to deform in a direction away from the document placement unit, i.e., buckle. According to this aspect, the moving member, to which an elastic force is imparted by the elastic member, moves toward the document placement section and comes into contact with the document, thereby pressing the document against the document placement section. This causes the elastic force to act on the document as a reaction force against the document's own weight, thereby preventing the document from buckling. Furthermore, preventing the document from buckling prevents the discharge space for the next document from being blocked by the document already discharged, thereby preventing a decrease in stackability for multiple documents.

[0009] The image reading device of the second aspect is characterized in that, in the first aspect, the moving member is arranged so as to overlap with the center of the width direction of the document, which intersects with the discharge direction of the document, when viewed from the loading direction of the document in the loading section. According to this aspect, buckling of the document can be suppressed evenly in the width direction, compared to a configuration in which the moving member presses the edge of the document in the width direction.

[0010] The image reading device of the third aspect is characterized in that, in the first or second aspect, the discharge section comprises a rotating shaft extending in a width direction intersecting the discharge direction, and a plurality of contact portions provided on the rotating shaft at intervals in the width direction and contacting the original, and the moving member is positioned between the plurality of contact portions in the width direction when viewed from the discharge direction. According to this aspect, the same effects as those of the first or second aspect can be obtained.

[0011] The image reading device of the fourth aspect is characterized in that, in the third aspect, a displacement member is provided outside the contact portion in the width direction, which displaces the document discharged from the discharge portion toward the placement portion. According to this aspect, the displacement member displaces the document toward the placement section, so that the upstream end of the document in the discharge direction can be prevented from remaining in the discharge section.

[0012] The image reading device of the fifth aspect is characterized in that, in any one of the first to fourth aspects, a first distance between the downstream end of the movable member in the discharge direction and the placement section is narrower than a second distance between the upstream end of the movable member in the discharge direction and the placement section. The document discharged from the discharge section is more likely to be deformed by its own weight at a downstream side in the discharge direction than at an upstream side. According to this aspect, the downstream portion of the document, which is more likely to be deformed, is more likely to come into contact with the moving member than the upstream portion, so deformation of the document due to its own weight can be suppressed.

[0013] The image reading device of the sixth aspect is characterized in that, in the fifth aspect, the moving member has a first surface facing the loading surface of the loading section and a second surface located upstream of the first surface in the discharge direction, and when the angle formed between the first surface and an imaginary plane obtained by moving the loading surface in parallel is defined as a first angle θ1, and the angle formed between the imaginary plane and the second surface is defined as a second angle θ2, the first angle θ1 is smaller than the second angle θ2. According to this aspect, since the first angle θ1 is smaller than the second angle θ2, the first surface located downstream in the discharge direction is closer to the placement surface than the second surface located upstream, which increases the contact area between the moving member and a portion of the document where deformation is likely to occur, compared to a configuration in which the first angle θ1 is equal to or larger than the second angle θ2, thereby suppressing deformation of the document due to its own weight. Furthermore, since the distance between the second surface and the placement surface is wider than the distance between the first surface and the placement surface, the moving member is less likely to come into contact with the document at the initial stage of discharging the document, thereby reducing the load acting on the document at the initial stage of discharging the document in the discharge section.

[0014] The image reading device of the seventh aspect is characterized in that, in any one of the first to sixth aspects, a cover section is provided that faces the upstream end of the loading section in the discharge direction, the cover section has a storage section that can store the moving member, and the moving member is rotatably arranged between a storage position when stored in the storage section and an opposing position when it can come into contact with the document. According to this aspect, the movable member is rotated from the facing position to the storage position. That is, the movable member is stored in the storage section. This prevents the document from getting caught on the movable member when the document is removed from the document loading section.

[0015] The image reading device of the eighth aspect is characterized in that, in any one of the first to seventh aspects, it has an apparatus main body equipped with the loading section, and the apparatus main body is provided with a support member that is located downstream of the loading section in the discharge direction and is capable of supporting the original. According to this aspect, even if the document is large enough to protrude from the placement section in the discharge direction, the support member supports the portion of the document that protrudes from the placement section, thereby suppressing deformation of the document.

[0016] The image reading device of the 9th aspect is characterized in that, in the 8th aspect, when viewed from the stacking direction of the document in the loading section, at least a portion of the movable member and at least a portion of the support member are aligned in the discharge direction. According to this aspect, the upstream portion of the document in the discharge direction is pressed toward the placement section by the moving member, and the downstream portion of the document in the discharge direction is supported by the support member. Here, the upstream portion of the document that contacts the moving member and the downstream portion of the document that contacts the support member are aligned in the discharge direction, which makes it possible to suppress deformation of the document compared to a configuration in which the moving member and the support member are offset from each other in the width direction that intersects with the discharge direction.

[0017] The image reading device of the 10th aspect is characterized in that, in the 8th or 9th aspect, the device main body has a support member storage section in which the support member can be stored, and the support member is rotatably arranged to a first position when stored in the support member storage section and a second position when it can support the original document. According to this aspect, the support member is stored in the support member storage section by rotating from the second position to the first position, thereby making it possible to reduce the size of the image reading device when the image reading device is not in use.

[0018] The image reading device of the 11th aspect is characterized in that, in any one of the 8th to 10th aspects, the support member is not located on the movable member side with respect to a virtual line extending the loading surface of the loading section toward the support member side. According to this aspect, since the support member does not protrude toward the moving member relative to the virtual line, when the document moves along the loading surface during ejection, the document can be prevented from getting caught on the support member.

[0019] The image reading device of the 12th aspect is characterized in that, in any one of the 8th to 11th aspects, the second inclination angle θB that the support member makes with the horizontal direction is smaller than the first inclination angle θA that the moving member makes with the horizontal direction. According to this aspect, the same effect as any one of the eighth to eleventh aspects can be obtained.

[0020] The image reading device of the 13th aspect is characterized in that, in any one of the first to 12th aspects, the discharge section has a rotatable first discharge roller and a second discharge roller that discharges the document by rotating together with the first discharge roller while clamping the document, the device main body has a first main body part that supports the first discharge roller and a second main body part that supports the second discharge roller, and the second main body part is arranged to be able to move relative to the first main body part so that the second discharge roller can contact and move away from the first discharge roller. According to this aspect, the second main body is moved relative to the first main body, so that the second discharge roller is separated from the first discharge roller, thereby opening the discharge section and making it easier to remove the document whose discharge has been interrupted in the discharge section.

[0021] The image reading device of the 14th aspect is characterized in that, in any one of the first to 13th aspects, an operation unit is provided that can operate the reading operation of the document by the reading unit, and the operation unit is located outside the movement area of the moving member when viewed from the loading direction of the document in the loading unit. According to this aspect, the operating portion is positioned outside the movement area of the movable member, making it easier to check the movement state of the movable member.

[0022] The image reading device according to a fifteenth aspect is the image reading device according to the fourteenth aspect, characterized in that the operation unit overlaps with at least a part of the movement area of the moving member when viewed from a width direction intersecting the ejection direction. According to this aspect, the operation unit overlaps at least a part of the movement area when viewed in the width direction, so that the image reading device can be made smaller.

[0023] The image reading device of the 16th aspect is characterized in that, in any one of the first to 13th aspects, an operating unit is provided that can operate the reading operation of the document by the reading unit, and the operating unit overlaps with at least a portion of the movement area of the moving member when viewed from the width direction that intersects the discharge direction. According to this aspect, the operation unit overlaps at least a part of the movement area when viewed in the width direction, so that the image reading device can be made smaller.

[0024] The image reading device of the 17th aspect is characterized in that, in any one of the 14th to 16th aspects, the operation unit has a touch panel, the operation unit is provided with an alarm unit that issues an alarm by outputting a sound, and at least a portion of the alarm unit is located between the touch panel and the placement unit. According to this aspect, when viewed from the operating side of the touch panel, at least a part of the notification unit is hidden on the placing unit side of the touch panel, so the operating unit can be made smaller in the width direction intersecting the ejection direction.

[0025] The present invention will be specifically described below. As shown in FIGS. 1 and 2, a scanner 1 capable of reading at least one of the front surface GA and the opposite back surface GB of a document G will be described as an example of an image reading device. The scanner 1 is a so-called sheet-fed type scanner that reads the document G while moving it relative to a reading unit 30, which will be described later. In this specification, the document G includes not only sheets but also card-shaped and booklet-shaped documents G.

[0026] In the XYZ coordinate system shown in each drawing, the X axis direction is the width direction of the device and also the width direction of the original G. The Y axis direction is the depth direction of the device, and the Z axis direction is the vertical direction. In this embodiment, the +Y direction is the direction from the rear of the device to the front, and the -Y direction is the direction from the front of the device to the rear. Furthermore, the left direction as viewed from the front of the device is the +X direction, and the right direction is the -X direction. Furthermore, the upward direction in the Z-axis direction is the +Z direction, and the downward direction is the -Z direction.

[0027] In the following, the direction in which the transport path R of the document G extends at a position opposite the reading unit 30, which will be described later, is referred to as the A-axis direction. Within the A-axis direction, the direction in which the document G is transported is referred to as the +A direction. In other words, the +A direction is an example of the transport direction. Additionally, within the A-axis direction, the direction in which the document G is discharged in the normal reading position, which will be described later, is referred to as the -A direction. In other words, the -A direction is an example of the discharge direction. The A-axis direction is perpendicular to the X-axis direction. The +A-direction is the direction toward the position in the +Y-direction and the -Z-direction. The direction perpendicular to both the A-axis direction and the X-axis direction is the B-axis direction. The B-axis direction is an example of the loading direction of the document G on the loading section 46, which will be described later. The direction of the B-axis direction that has a +Z-direction component is the +B direction, and the direction that has a -Z-direction component is the -B direction.

[0028] The scanner 1 has a device body 2 and a stand 6 that supports the device body 2 so that it can rotate. The device main body 2 has a first unit 3, a second unit 4, and a third unit 5. In addition, the device main body 2 has formed therein a transport path R, which will be described later, along which the document G is transported. Specifically, the device body 2 includes a reading unit 30, a reversing unit 34, a discharge unit 27, a placing unit 46, and a pressing unit 72, which will be described later. The device body 2 also includes a support member 92, which will be described later. The first unit 3 includes an upper opening / closing unit 10, a separation roller 15, a second roller 18, a fourth roller 22, a control unit 31 (FIG. 5), a position switching motor 40, and a transport motor 50 (FIG. 5), which will be described later.

[0029] The second unit 4 is located in the +Y direction relative to the first unit 3. The second unit 4 is an example of a first main body portion that supports a first discharge roller 28, which will be described later. The second unit 4 includes a main body frame 4A and a mounting portion 46, which will be described later. The main body frame 4A has a support member storage section 91 at its end in the +Z direction.

[0030] 14, the support member storage section 91 is provided in the center in the X-axis direction at the end of the main body frame 4A in the +Z direction. The support member storage section 91 is located in the -Y direction with respect to the mounting section 46, which will be described later. In other words, the support member storage section 91 is hidden in the -Y direction with respect to the mounting section 46. The support member storage section 91 is large enough to store a support member 92 (described later) and is open in the -A direction. A recess 13A is formed on the outer edge of the support member storage section 91 so that a gripping section 101 (described later) can be held therein.

[0031] As shown in FIG. 6, the placement section 46 constitutes the side of the second unit 4 in the +Y direction in the normal reading position described below. The placement section 46 is formed in a plate shape having a predetermined thickness in the B axis direction. The placement section 46 is a portion on which the document G discharged by the discharge section 27 (FIG. 1) described below is placed. A placement surface 46A, which is part of the placement section 46 and on which the document G is placed, is, for example, a flat surface along the XA plane. Side walls 46B that form part of the mounting portion 46 are provided at both ends of the second unit 4 in the X-axis direction. An upper end surface 46C of the side wall 46B in the +Z direction is, for example, along the XY plane. When viewed from the X-axis direction, a line extending from the upper end surface 46C in the Y-axis direction is defined as an imaginary line K1.

[0032] As shown in FIG. 1, the third unit 5 is located in the +Y direction relative to the second unit 4. The third unit 5 is an example of a second main body portion that supports a second discharge roller 29, which will be described later. The third unit 5 is provided with an operation unit 42 (FIG. 3), which will be described later. The operation unit 42 is configured to be able to operate the reading operation of the document G by the reading unit 30.

[0033] The second unit 4 and the third unit 5 are provided so as to be rotatable about a frame rotation axis 9 (FIG. 4). The frame rotation axis 9 has a rotation axis center parallel to the X-axis direction. The second unit 4 and the third unit 5 can rotate integrally about the frame rotation axis 9 relative to the first unit 3. By rotating the second unit 4 and the third unit 5 relative to the first unit 3, a document feed path R1 and a reading transport path R2, which will be described later, are exposed.

[0034] 4, the third unit 5 can be rotated about a frame rotation axis 9 relative to the first unit 3 and the second unit 4. In other words, the third unit 5 is provided so as to be movable relative to the second unit 4 so that a second discharge roller 29 (described later) can come into contact with and separate from a first discharge roller 28. Moreover, by rotating the third unit 5 relative to the first unit 3 and the second unit 4, it is possible to expose a reverse conveying path R3 (FIG. 1) which will be described later.

[0035] As shown in Figures 1 and 2, the third unit 5 is configured to include, for example, a cover member 7, a main body frame 8, a guide member 36, a lower roller 25, a second discharge roller 29, an operating unit 42 (Figure 3), and a pressing unit 72. The main body frame 8 is a frame that forms the base of the third unit 5, and supports each member that constitutes the third unit 5. The components of the third unit 5 will be described later.

[0036] The device main body 2 is rotatable around a main body rotation axis 6A relative to the stand 6. In this embodiment, the device main body 2 can be held in two positions by being rotated. The position of the device main body 2 shown in FIG. 1 is referred to as the normal reading position. The position of the device main body 2 shown in FIG. 2 is referred to as the booklet reading position. The posture of the device main body 2 is changed by rotating a gear that meshes with a rack portion (not shown) of the stand 6 using a posture switching motor 40 (FIG. 5). The operation of the posture switching motor 40 is controlled by a control unit 31 (FIG. 5). The surface on which the stand 6 is placed is referred to as an installation surface D. As an example, the installation surface D is a flat surface along the XY plane.

[0037] 2, the angle formed between a reading conveyance path R2 (described later) and the installation surface D is referred to as a posture angle θ (°). The posture angle θ in the booklet reading posture is smaller than the posture angle θ in the normal reading posture. In the normal reading position, the scanner 1 has the smallest projection area of the device body 2 onto the installation surface D. In other words, the footprint of the device body 2 is smallest in the normal reading position. Note that the footprint in this specification corresponds to the area occupied by the device body 2 in the XY plane when looking down on the device body 2 from above in the Z axis direction.

[0038] 3, the cover member 7 is an example of a cover portion that faces the upstream end portion in the -A direction of the mounting portion 46. The cover member 7 has a first cover portion 7A extending in the X-axis direction, and a second cover portion 7B extending in the +Z direction from the first cover portion 7A in the -X direction relative to the center of the first cover portion 7A in the X-axis direction.

[0039] When viewed in the -Y direction, the first cover part 7A covers the main body frame 8, guide member 36, lower roller 25, and second discharge roller 29 (Fig. 1) from the +Y direction. A first discharge opening 37 (Fig. 1) is formed at the end of the first cover part 7A in the +Z direction. A storage section 13 (Fig. 9), which will be described later, is provided in the center in the X-axis direction at the edge of the first discharge opening 37 in the first cover part 7A. The range of the first cover part 7A in the X-axis direction is designated SA.

[0040] The second cover portion 7B has a window portion 7C that exposes a touch panel 44, which will be described later. The range of the second cover portion 7B in the X-axis direction is defined as SB. The range SB includes an operation portion 42, which will be described later. Range SC is the range SA minus range SB. In other words, range SC does not overlap with range SB. A moving member 74 and a support member 92, which will be described later, are located inside range SC. The first cover portion 7A includes a front surface 7D along the XZ plane, for example. When viewed from the X-axis direction, a line extending from the front surface 7D in the Z-axis direction is defined as an imaginary line K2 (FIG. 6).

[0041] As shown in FIG. 9, an opening 57 is formed at the end of the first cover part 7A in the +A direction. The opening 57 is a portion that is further cut out in the +B direction from the portion of the first cover part 7A that forms the first discharge port 37. The opening 57 opens in the -A direction. The size of the opening 57 is such that a moving member 74, which will be described later, can pass through the opening 57. In other words, the opening 57 functions as an entrance and exit for the storage part 13.

[0042] The cover member 7 has a storage portion 13 capable of storing the moving member 74 therein. The storage section 13 is configured by a part of the first cover section 7A and a wall section (not shown) provided in a portion of the first cover section 7A in the -B direction. In other words, the storage section 13 forms a space section in which the moving member 74 is stored. Note that the storage section 13 may also include a portion of the main body frame 8 where a support shaft 71 (FIG. 11) described below is provided.

[0043] 3, the movable member 74 is rotatably disposed between a storage position and an opposing position. The storage position is the position when the movable member 74 is stored in the storage section 13. The opposing position is the position when the movable member 74 is capable of contacting the document G. As an example, the opposing position is the position when the movable member 74 is upright along the Z-axis direction when viewed in the -Y direction from the front side. Regarding the opposing positions, the position before the second rotating part 81 described later is rotated toward the mounting part 46 is referred to as the first opposing position, and the position after the second rotating part 81 is rotated toward the mounting part 46 is referred to as the second opposing position.

[0044] The support member 92 is rotatably disposed between a first position and a second position. The first position is the position when the support member 92 is stored in a support member storage section 91 (FIG. 14) described below. The second position is the position when the support member 92 is capable of supporting the document G. As an example, the second position is the position when the support member 92 is upright along the Z-axis direction when viewed from the front side in the -Y direction. The moving member 74 and the supporting member 92 will be described in detail later.

[0045] As shown in FIG. 3, when viewed from the B-axis direction, the moving member 74 and a part of the support member 92 are aligned in the −A direction. The movement area A1, which is an area in which the moving member 74 rotates, is, for example, an arc-shaped area indicated by a dashed line A1 when viewed from the Y-axis direction. The movement area A2, which is an area in which the support member 92 rotates, is, for example, an arc-shaped area indicated by a dashed line A2 when viewed from the Y-axis direction.

[0046] The operation unit 42 has, for example, a touch panel 44 and operation buttons 45A, 45B, and 45C. The operation unit 42 can send and receive signals to and from the control unit 31 (FIG. 5). The operation unit 42 is provided with a buzzer 47 (FIG. 7). The touch panel 44 can display and input information relating to the operation of the scanner 1. On the −B side of the touch panel 44, a board 49 (FIG. 7) is provided for transmitting and receiving signals to and from the touch panel 44 and the like. Operation buttons 45A, 45B, and 45C are provided on first cover portion 7A and positioned in the −Z direction relative to touch panel 44. Operation buttons 45A, 45B, and 45C are assigned as ON / OFF switches for powering scanner 1, etc.

[0047] When viewed from the B-axis direction (FIG. 1), the operation unit 42 is located outside the movement area A1 in the X-axis direction. Specifically, the operation unit 42 is located away from the movement area A1 in the -X direction. In other words, the movement area A1 and the installation area of the operation unit 42 do not overlap.

[0048] 6, a moving member 74, which will be described later, is rotatable toward the mounting portion 46. That is, the moving area A1 of the moving member 74 is an area that has width not only in the X-axis direction but also in the B-axis direction. Here, the operation unit 42 overlaps with a part of the movement area A1 when viewed from the X-axis direction intersecting with the -A direction. The operation unit 42 is also located inside the space V surrounded by the imaginary lines K1 and K2, the cover member 7, and the placement surface 46A. This makes the scanner 1 more compact than in a configuration in which the operation unit 42 protrudes outside the space V.

[0049] 7 and 8, the buzzer 47 is an example of a notification unit that issues a notification by outputting a sound in response to a command from the control unit 31 (FIG. 5). The buzzer 47 outputs a sound, for example, to notify the completion of reading or when the document G is not properly conveyed. The buzzer 47 is provided on the substrate 49. The substrate 49 is connected to the control unit 31 via wiring including a flexible flat cable (FFC) 59. The buzzer 47 protrudes from the substrate 49 in the -B direction. In this manner, the buzzer 47 is located between the touch panel 44 and the placement unit 46. The buzzer 47 is provided at a corner 49A located in the -X direction and the -A direction relative to the center of the substrate 49 so as not to come into contact with the document G.

[0050] Next, the configuration of the transport path R for the document G in the scanner 1 will be described. As shown in FIGS. 1 and 2, the first unit 3 has an upper opening / closing part 10 that functions as a lid for the transport path R. The upper opening / closing unit 10 rotates around a shaft (not shown) to open and close the feed port 19. An original support unit 11 is formed in the upper opening / closing unit 10. The original G to be fed is supported in an inclined position by the original support unit 11. When multiple sheets of original G are supported by the original support unit 11, the topmost original G is sent downstream in the +A direction by the feed roller 14. The document support section 11 is provided with edge guides 12 that guide both ends of the document G in the X-axis direction. The edge guides 12 are arranged at intervals in the X-axis direction and are provided so as to be slidable in the X-axis direction. In the scanner 1, the document G is fed, for example, by a center feeding method.

[0051] The feed roller 14 is provided in the second unit 4. Specifically, the feed roller 14 is provided upstream in the +A direction from a first transport roller pair 16 (described later). The feed roller 14 receives power from a transport motor 50 (FIG. 5) (described later) and rotates. The feed roller 14 then feeds the document G to the first transport roller pair 16. A separation roller 15 is provided in the first unit 3 at a position facing the feed roller 14. A torque limiter (not shown) applies a rotational torque to the separation roller 15, preventing double feeding of documents G. The feed roller 14 and separation roller 15 are provided, for example, at the center in the X-axis direction. Instead of the separation roller 15, a separation pad may be provided. In addition, in this embodiment, the feed roller 14 is provided above the documents placed on the document support section 11, and the top document is fed first, but the feed roller 14 may be provided below the documents placed on the document support section 11, and the bottom document is fed first.

[0052] A first transport roller pair 16 for transporting the document G is provided downstream of the feed roller 14 and the separation roller 15. The first transport roller pair 16 has a first roller 17 provided in the second unit 4 and a second roller 18 provided in the first unit 3. The first transport roller pair 16 transports the document G while pressing it as it rotates. The first roller 17 is provided so as to be movable forward and backward in the B-axis direction relative to the second roller 18.

[0053] Both the first roller 17 and the second roller 18 are rotated by power received from a transport motor 50 (FIG. 5). When the second unit 4 is closed relative to the first unit 3, the first roller 17 and the second roller 18 come into contact with each other to form a nip. When the second unit 4 is opened relative to the first unit 3, the first roller 17 moves away from the second roller 18.

[0054] A reading unit 30 that reads an image of the document G is provided downstream of the first transport roller pair 16 in the +A direction. The reading unit 30 has a first reading unit 32 and a second reading unit 33 that face each other in the B-axis direction. In this embodiment, the first reading unit 32 and the second reading unit 33 are configured as contact image sensor modules (CISMs), for example. The reading unit 30 reads the document G transported by the first transport roller pair 16.

[0055] The first reading section 32 is provided in the first unit 3. The first reading section 32 reads the back side GB of the document G supported by the document support section 11. The second reading section 33 is provided in the second unit 4. The second reading section 33 reads the front surface GA of the document G supported by the document support section 11. The second reading section 33 is provided so as to be movable in the B-axis direction. A second transport roller pair 20 is provided downstream of the reading unit 30 in the +A direction.

[0056] The second transport roller pair 20 has a third roller 21 provided in the second unit 4 and a fourth roller 22 provided in the first unit 3. The second transport roller pair 20 transports the document G while pressing it as it rotates. The third roller 21 is provided so as to be movable forward and backward in the B-axis direction relative to the fourth roller 22.

[0057] Both the third roller 21 and the fourth roller 22 are rotated by power received from a conveyance motor 50 (FIG. 5). When the second unit 4 is closed relative to the first unit 3, the third roller 21 and the fourth roller 22 come into contact with each other to form a nip. When the second unit 4 is opened relative to the first unit 3, the third roller 21 moves away from the fourth roller 22.

[0058] In the device main body 2, the transport path R is made up of, for example, a document feed path R1, a reading transport path R2, a reversing transport path R3 (FIG. 1), and a non-reversing transport path R4 (FIG. 2). Note that the reversing transport path R3 and the non-reversing transport path R4 are switched, so that both do not constitute the transport path R at the same time.

[0059] The document feeding path R1 is a path from the nip position between the feeding roller 14 and the separation roller 15 to the nip position of the first transport roller pair 16. The reading transport path R2 is a linear path that extends from the nip of the first transport roller pair 16 to the nip of the second transport roller pair 20 via a position facing the reading unit 30. The reverse conveying path R3 (FIG. 1) is a path located downstream of the reading conveying path R2 when the device main body 2 is in the normal reading position. After reading, the document G is turned upward in the reverse conveying path R3 and discharged obliquely upward from the first discharge opening 37. The reverse conveying path R3 is provided with an upper roller 24, a lower roller 25, and a discharge unit 27.

[0060] The non-reversing conveying path R4 (FIG. 2) is a path located downstream of the reading conveying path R2 when the device main body 2 is in the booklet reading position. After reading, the original G is not reversed in the non-reversing conveying path R4, but is discharged diagonally downward from the second discharge opening 38. The second conveying roller pair 20 functions as a discharge roller pair that discharges the original from the non-reversing conveying path R4.

[0061] 1, the reversing unit 23 is a part that constitutes the reversing conveying path R3. That is, the reversing unit 23 is a part where one of the front side GA and the back side GB of the document G read by the reading unit 30 is reversed to the other. The reversing unit 23 includes, for example, a switching flap 35, a guide member 36, an upper roller 24, and a lower roller 25.

[0062] The switching flap 35 is located downstream in the +A direction from the second transport roller pair 20. The switching flap 35 is rotated by a solenoid (not shown) to allow transport of the document G in one of the reversing transport path R3 and the non-reversing transport path R4, and restrict transport of the document G in the other path. In other words, the switching flap 35 switches between the reversing transport path R3 and the non-reversing transport path R4. In this embodiment, the switching flap 35 is configured to rotate in conjunction with switching the posture of the device main body 2.

[0063] The guide member 36 is attached to the main body frame 8. The guide member 36 is located downstream of the switching flap 35 on the reverse conveying path R3. The guide member 36 is fixed to the third unit 5. In the normal reading position, the guide member 36 is curved so as to have a convex shape in the +Y direction. The guide member 36 extends to the first discharge port 37.

[0064] In the normal reading position, the upper roller 24 is located in the +Z direction with respect to the reverse conveying path R3, and rotates around an axis along the X-axis direction. In the normal reading position, the lower roller 25 is positioned in the -Z direction with respect to the reverse conveying path R3, and rotates around an axis along the X-axis direction. The lower roller 25 is driven by a conveying motor 50 (FIG. 5), and conveys the document G while rotating together with the upper roller 24.

[0065] The discharge section 27 is located downstream of the upper roller 24 and the lower roller 25. The discharge section 27 discharges the document G that has been inverted in the reversing section 23 from the first discharge opening 37 in the −A direction. The discharge section 27 has a first discharge roller 28 provided in the second unit 4 and a second discharge roller 29 provided in the third unit 5.

[0066] In the normal reading position, the first discharge roller 28 is located in the -Y direction with respect to the reverse transport path R3. The first discharge roller 28 is provided rotatably about a rotation shaft 28A along the X-axis direction. In the normal reading position, the second discharge roller 29 is positioned in the +Y direction with respect to the reverse conveying path R3. The second discharge roller 29 is driven by a conveying motor 50 (FIG. 5), and rotates together with the first discharge roller 28 while sandwiching the document G therebetween, thereby discharging the document G from the first discharge opening 37.

[0067] As shown in FIG. 9, the second discharge roller 29 includes, for example, a rotation shaft 29A and two contact portions 29B provided on the rotation shaft 29A. The rotation shaft 29A is a cylindrical member that extends in the X-axis direction that intersects with the −A direction. The two contact portions 29B are provided on the rotating shaft 29A with a gap in the X-axis direction. The two contact portions 29B are located at positions on the +X direction and the -X direction with respect to the center of the rotating shaft 29A in the X-axis direction. The two contact portions 29B are cylindrical portions with an outer diameter larger than the outer diameter of the rotating shaft 29A, and their outer peripheral surfaces come into contact with the document G.

[0068] As an example, a propeller member 39 is provided between the two contact portions 29B of the rotary shaft 29A. The propeller member 39 is a disk-shaped member having an outer diameter larger than that of the rotary shaft 29 A. The outer periphery of the propeller member 39 has a shape with repeated concaves and convexes in the circumferential direction. A moving member 74 (described later) is located between a plurality of contact portions 29B in the X-axis direction when viewed in the +A direction. Also, the moving member 74 overlaps with the rotation shaft 29A when viewed in the +A direction.

[0069] Discharge flaps 62 are provided outside the contact portion 29B in the X-axis direction. As an example, the discharge flaps 62 are provided in the +X direction and the -X direction relative to the contact portion 29B. The +X direction discharge flaps 62 and the -X direction discharge flaps 62 are formed symmetrically with respect to the center in the X-axis direction. For this reason, only the +X direction discharge flaps 62 will be described, and a description of the -X direction discharge flaps 62 will be omitted. The discharge flap 62 is an example of a displacement member that displaces the document G discharged from the discharge section 27 toward the placement section 46.

[0070] As shown in FIG. 10, the discharge flap 62 is provided on the main body frame 8. The discharge flap 62 includes, for example, a support shaft 63 , three extensions 64 , a protruding portion 65 , and a torsion spring 66 . The support shaft portion 63 is formed in a cylindrical shape extending along the X-axis direction. The three extending portions 64 are each formed in a rod shape extending radially from the outer circumferential surface of the support shaft portion 63 toward the mounting portion 46 (FIG. 1). The three extending portions 64 are positioned at intervals in the X-axis direction.

[0071] The protruding portion 65 is a plate-shaped portion extending radially from the end of the support shaft portion 63 in the +X direction. The protruding portion 65 is provided with a through-hole 65A that penetrates in the X direction and a restricting portion 65B. One arm 66A of the torsion spring 66 is hooked onto the edge of the through-hole 65A. When one arm 66A is about to come out of the through-hole 65A, the restricting portion 65B restricts the movement of the arm 66A, thereby preventing the arm 66A from coming out. The other arm 66B of the torsion spring 66 is attached to a part of the main body frame 8. In this way, the discharge flap 62 is pressed toward the placement section 46 (FIG. 1) by the torsion spring 66. Therefore, a portion of the document G that comes into contact with the discharge flap 62 is displaced toward the placement section 46 by receiving a pressing force from the discharge flap 62.

[0072] As shown in FIG. 5, the control unit 31 is provided in the first unit 3. The control unit 31 performs various controls of the scanner 1, including feeding, transporting, discharging, and reading of the document G. A signal is input to the control unit 31 from an operation unit (not shown). The control unit 31 controls the operation of the transport motor 50 and the attitude switching motor 40. In this embodiment, each motor is a DC motor. The control unit 31 also receives signals from a placement detection unit, a double feed detection unit, a document detection unit, a posture detection sensor, and the like (not shown).

[0073] The transport motor 50 is an example of a drive unit that rotates each roller of the scanner 1. The transport motor 50 is provided at the end of the device body 2 in the -X direction. A drive pulley 51 is provided on the rotation shaft of the transport motor 50. A driving force is transmitted from the drive pulley 51 to a driven pulley 53 via a belt 52. The driving force transmitted to the driven pulley 53 is transmitted to each roller via a group of gears (not shown).

[0074] As shown in FIG. 11, the scanner 1 includes a pressing unit 72 . The pressing portion 72 presses the document G toward the placement portion 46 (FIG. 1). Specifically, the pressing portion 72 has a moving member 74 and an elastic member 89 (FIG. 12). The moving member 74 is provided so as to be movable toward the placement portion 46 . The elastic member 89 applies an elastic force to the moving member 74 so that the moving member 74 comes into contact with the document G on the placement section 46 . The positions and directions of the various parts of the moving member 74 will be described assuming that the moving member 74 is in the first opposing position.

[0075] A cylindrical support shaft 71 is provided in part of the X-axis direction at the -A direction end of main body frame 8. Support shaft 71 protrudes in the +B direction from main body frame 8 toward cover member 7. Support shaft 71 supports moving member 74 rotatably within the XA plane. The moving member 74 is disposed so as to overlap the center CP (FIG. 3) of the document G in the X-axis direction when viewed from the B-axis direction of the document G on the placement section 46 (FIG. 3). The attachment position of the moving member 74 to the main body frame 8 is located in the +B direction from the nip position between the first discharge roller 28 (FIG. 1) and the second discharge roller 29 (FIG. 1) in the B axis direction. The attachment position of the moving member 74 to the main body frame 8 is located in the +B direction from the rotation shaft 28A (FIG. 1) of the first discharge roller 28 in the B axis direction.

[0076] As an example, the moving member 74 has a first rotating part 75 that is rotatable along the XA plane, and a second rotating part 81 that is connected to the first rotating part 75 and is rotatable along the AB plane. The first rotating portion 75 is formed in a plate shape having a predetermined thickness in the B-axis direction. When viewed from the B-axis direction, the first rotating portion 75 has two rounded portions 75A. A circular hole 76 is formed in the first rotating portion 75, penetrating it in the B-axis direction. The inner diameter of the hole 76 is approximately the same as the outer diameter of the support shaft 71. The support shaft 71 is inserted into the hole 76. This allows the first rotating part 75 to rotate around the support shaft 71 along the XA plane. The cover member 7 functions as a stopper that prevents the first rotating portion 75 from coming off the support shaft 71.

[0077] 12, a recessed portion 77 is formed on the -B direction surface of the first rotating portion 75 in the portion facing the -A direction relative to the hole 76. Furthermore, vertical wall portions 78 and 79 that protrude toward the -B direction are formed on both ends of the recessed portion 77 in the X-axis direction. The recess 77 accommodates a part of an elastic member 89, which will be described later. The vertical wall portion 78 is located in the +X direction relative to the recessed portion 77, and is formed in a semicircular shape when viewed from the X-axis direction. The vertical wall portion 78 is formed with a connecting hole 78A that penetrates in the X-axis direction. The vertical wall portion 79 is located in the −X direction relative to the recessed portion 77, and is formed in a polygonal shape when viewed from the X-axis direction. The vertical wall portion 79 is formed with a connecting hole 79A that penetrates in the X-axis direction.

[0078] The second rotating part 81 is formed in a plate shape having a predetermined thickness in the B axis direction. Specifically, the second rotating part 81 is formed in a rectangular shape whose length in the A axis direction is longer than its length in the X axis direction. The length of the second rotating part 81 in the A axis direction is longer than the length of the first rotating part 75 in the A axis direction. The length of the second rotating part 81 in the A axis direction is set to be the length from the first rotating part 75 to the part of the document G to be pressed.

[0079] Additionally, the second rotating portion 81 has two rounded portions 81A when viewed from the B-axis direction. The cross-sectional shape of the XB plane of the second rotating portion 81 is, for example, an isosceles trapezoid with its upper base located in the +B direction and its lower base located in the -B direction. At the end of the second rotating part 81 in the +A direction, a protruding part 82 protruding in the +A direction, cylindrical connecting shafts 83A and 83B, and an engaging part 84 are provided.

[0080] The protrusion 82 protrudes in the +A direction from a position shifted in the +X direction from the center in the X-axis direction at the +A direction end of the second rotating part 81. The protrusion 82 is formed in a U-shape when viewed from the B-axis direction. Connecting shaft 83A extends in the +X direction from one side of protrusion 82. Connecting shaft 83B extends in the -X direction from the other side of protrusion 82. The length of connecting shaft 83B in the X axis direction is longer than the length of connecting shaft 83A in the X axis direction. Connecting shafts 83A and 83B are positioned on the same axis (not shown). The engaging portion 84 is a portion that protrudes in the −B direction from the protruding portion 82. The engaging portion 84 is a portion that is engaged with an arm (not shown) of an elastic member 89, which will be described later.

[0081] A side wall portion 86 is provided at the end of the second rotating portion 81 in the −X direction. The side wall portion 86 is a portion that protrudes from the second rotating portion 81 in the -B direction. The side wall portion 86 is formed in a plate shape having a predetermined thickness in the X-axis direction. The side wall portion 86 has a structure in which a first side wall portion 87 located in the +A direction and a second side wall portion 88 located in the -A direction are integrally formed. The side wall 86 is a portion that is exposed in the -A direction when the movable member 74 is stored in the storage section 13 (FIG. 9). In other words, the side wall 86 functions as a grip that is held by an operator when rotating the movable member 74 in the stored state. The side wall 86 also functions as a lid that closes the opening of the storage section 13. This prevents dust and the like from entering the storage section 13.

[0082] When viewed from the X-axis direction, the first side wall portion 87 is a rectangular portion that is long in the A-axis direction. The end surface of the first side wall portion 87 in the -B direction is defined as a first opposing surface 87A. The first opposing surface 87A is a flat surface along the XA plane. The first opposing surface 87A is an example of a first surface that faces the mounting surface 46A. The second side wall portion 88 is a triangular portion whose height in the -A direction is lower than its height in the +A direction when viewed from the X-axis direction. The second side wall portion 88 has a second opposing surface 88A. The second opposing surface 88A is an inclined surface that extends from the -A direction end of the first opposing surface 87A toward a position in the -A direction and the -B direction. The second opposing surface 88A is an example of a second surface that faces the placement surface 46A (FIG. 3). Furthermore, the second opposing surface 88A is located upstream in the +A direction from the first opposing surface 87A. Thus, the moving member 74 has a first opposing surface 87A and a second opposing surface 88A.

[0083] Connecting shaft 83A is inserted through connecting hole 78A. Connecting shaft 83B is inserted through connecting hole 79A. This allows second rotating part 81 to rotate around connecting shafts 83A and 83B relative to first rotating part 75. Specifically, second rotating part 81 can rotate along an arc-shaped movement trajectory within plane AB.

[0084] The elastic member 89 is configured as a torsion spring, for example, and has a winding portion 89A, an arm 89B extending from one end of the winding portion 89A, and an arm (not shown) extending from the other end of the winding portion 89A. A portion of winding portion 89A is housed in recess 77. The tip of an arm (not shown) is in contact with recess 77. The tip of arm 89B is engaged with engagement portion 84. As a result, an elastic force toward document G is applied to second rotating portion 81 by elastic member 89.

[0085] 13 shows the relative positions of the mounting section 46, the movable member 74, and the support member 92 when the scanner 1 is viewed in the +X direction. Note that the movable member 74 is shown in the second opposing position, as an example. The imaginary plane M1 indicated by the two-dot chain line M1 represents an imaginary plane obtained by translating the placement surface 46A in the +B direction. As an example, the imaginary plane M1 passes through point A, which is the end point of the second rotating part 81 in the -A direction. Here, the angle formed between the imaginary plane M1 and the first opposing surface 87A is defined as a first angle θ1 (°). The angle formed between the imaginary plane M1 and an extension of the second opposing surface 88A is defined as a second angle θ2 (°). The first angle θ1 is smaller than the second angle θ2.

[0086] Point A represents the downstream end position in the -A direction of the moving member 74. Point B represents the boundary position between the first opposing surface 87A and the second opposing surface 88A. Point C represents the upstream end position in the -A direction of the second opposing surface 88A. Here, the distance corresponding to the shortest distance between point A and the placement surface 46A is defined as the first distance d1 (mm). The distance corresponding to the shortest distance between point C and the placement surface 46A is defined as the second distance d2 (mm). Furthermore, the distance corresponding to the shortest distance between point B and the placement surface 46A is defined as the third distance d3 (mm). In this embodiment, the respective values are set so that the first distance d1<the third distance d3<the second distance d2. In other words, the first distance d1 between the downstream end of the moving member 74 in the -A direction and the mounting portion 46 is narrower than the second distance d2 between the upstream end of the moving member 74 in the -A direction and the mounting portion 46. In this embodiment, point A, which is the downstream end position of the moving member 74 in the −A direction, is located between the rotation shaft 28A of the first discharge roller 28 (see FIG. 1) and the placement surface 46A in the B axis direction. In this embodiment, point A, which is the downstream end position of the moving member 74 in the −A direction, is located between the nip between the first discharge roller 28 and the second discharge roller 29 and the placement surface 46A in the B axis direction. In this embodiment, point A, which is the downstream end position of the moving member 74 in the -A direction, is located between point C, which is the upstream end position of the moving member 74 in the -A direction, in the B axis direction, and the placement surface 46A.

[0087] An imaginary plane M2 indicated by a two-dot chain line M2 represents a horizontal plane along the XY plane. The Y-axis direction is an example of the horizontal direction. Here, a second tilt angle θB (°) formed by the support member 92 (described later) with respect to the Y-axis direction is smaller than a first tilt angle θA (°) formed by the moving member 74 with respect to the imaginary plane M2, i.e., the Y-axis direction. In other words, the support member 92 is disposed in a state inclined more toward the horizontal plane than the moving member 74. The support member 92 is not located on the moving member 74 side with respect to an imaginary line M3 that extends from the mounting surface 46A of the mounting portion 46 in the −A direction toward the support member 92. In other words, the support member 92 is located in the −B direction with respect to the imaginary line M3.

[0088] As shown in FIG. 14, the device body 2 is provided with a support member storage section 91 and a support member 92. The support member 92 is located downstream of the placement unit 46 in the -A direction. The support member 92 is located at the second position by being rotated from the first position where it is stored in the support member storage unit 91. The support member 92 then protrudes in the -A direction from the placement unit 46 at the second position. This allows the support member 92 to support a portion of the document G that is located in the -A direction from the placement unit 46.

[0089] 15, a columnar support shaft 93 is provided on a part of the X-axis direction at the -A direction end of the mounting portion 46. The support shaft 93 protrudes in the -B direction from the mounting portion 46. The support shaft 93 supports the support member 92 rotatably within the XA plane. The support shaft 93 has a cylindrical shaft portion 93A and two protrusions 93B that protrude outward in the radial direction of the shaft portion 93A from the end of the shaft portion 93A in the -B direction.

[0090] As an example, the support member 92 has a lower rotating part 94 that is rotatable along the XA plane, and an upper rotating part 98 that is connected to the lower rotating part 94 and is rotatable along the AB plane. The arrangement of each part will be described assuming that the support member 92 is in the second position. The lower rotating portion 94 is formed in a plate shape having a predetermined thickness in the B-axis direction. The lower rotating portion 94 has an R portion 94A when viewed in the B-axis direction. A hole portion 95 is formed in the lower rotating portion 94, penetrating in the B-axis direction. The support shaft 93 is inserted through the hole portion 95.

[0091] Only when the lower rotating portion 94 is in a specific rotation position can the two protrusions 93B be inserted into the holes 95. In other words, the lower rotating portion 94 is held so as not to come off the support shaft 93 at any rotation position other than the specific rotation position. A connecting hole 96 that penetrates the lower rotating part 94 in the X-axis direction is formed at the end of the lower rotating part 94 in the -A direction. In addition, a recess 97 is formed at the end of the lower rotating part 94 in the -A direction and in the center in the X-axis direction.

[0092] The upper rotating portion 98 is formed in a plate shape having a predetermined thickness in the B-axis direction. Specifically, the upper rotating portion 98 is formed in a rectangular shape whose length in the A-axis direction is longer than its length in the X-axis direction. The length of the upper rotating portion 98 in the A-axis direction is longer than the length of the lower rotating portion 94 in the A-axis direction. The length of the upper rotating portion 98 in the A-axis direction is set so that it can come into contact with the document G. Additionally, the upper rotating portion 98 has two rounded portions 98A when viewed from the B-axis direction. The cross-sectional shape of the XB plane of the upper rotating portion 98 is, for example, an isosceles trapezoid with its lower base located in the +B direction and its upper base located in the -B direction.

[0093] A protruding portion 99 that protrudes in the +A direction is provided in the center in the X-axis direction at the end portion in the +A direction of the upper rotating portion 98. A through-hole (not shown) that penetrates in the X-axis direction is formed in the protruding portion 99. A gripping portion 101 that protrudes from the upper rotating portion 98 in the -B direction is provided at the -X direction end of the -A direction end of the upper rotating portion 98. The gripping portion 101 is gripped by an operator when rotating the support member 92 from the support member storage portion 91 (FIG. 14).

[0094] With the protrusion 99 inserted into the recess 97, a pin 102 is press-fitted into the connecting hole 96 and a through-hole (not shown), thereby connecting the lower rotating part 94 and the upper rotating part 98. In this way, the lower rotating part 94 can rotate within the XA plane, and the upper rotating part 98 can rotate along the AB plane. The lower rotating portion 94 can maintain its posture at any rotational position due to frictional force generated between the lower rotating portion 94 and the mounting portion 46, etc. The upper rotating portion 98 is held in a desired rotational position by frictional force generated between the upper rotating portion 98 and a part of the recessed portion 97, for example.

[0095] Next, a description will be given of the operation of the scanner 1 of this embodiment. Note that for each component of the scanner 1, the components and symbols shown in Figures 1 to 15 will be referred to, and individual figure numbers may be omitted.

[0096] 16, when the movable member 74 is in the opposing position, the discharge section 27 discharges the document G. As a result, the document G is discharged in the -A direction from the first discharge opening 37. The center portion of the document G in the X-axis direction during discharge comes into contact with the movable member 74 and is pressed in the -B direction toward the placement section 46. This prevents the center portion of the document G in the X-axis direction from buckling in the +B direction due to the action of its own weight. Furthermore, the distance between the moving member 74 and the placement section 46 becomes wider as it approaches the first discharge opening 37. This prevents a large pressing force from being applied from the moving member 74 to a portion of the document G immediately after it is discharged from the first discharge opening 37, thereby preventing the portion of the document G moving near the first discharge opening 37 from bending.

[0097] 17 , at a portion of the document G being discharged that is outside the center in the X-axis direction, the discharge flap 62 applies a pressing force in the −B direction to the document G. This allows the document G to be separated from the nip between the first discharge roller 28 and the second discharge roller 29, particularly at the timing when the upstream end of the document G in the −A direction leaves the discharge section 27, making it less likely that part of the document G will remain in the discharge section 27.

[0098] 18, the portion of the discharged document G that extends beyond the end of the mounting section 46 in the -A direction tends to sag in the -Z direction due to the action of its own weight. Here, the support member 92 supports the document G, so that the portion of the document G downstream of the moving member 74 in the -A direction can be prevented from bending.

[0099] As described above, the original G from which information has been read is turned over by the reversing unit 34. The turned-over original G is then discharged by the discharge unit 27 and placed on the placing unit 46. The weight of the original G acts on the original G placed on the placing unit 46. For this reason, there is a possibility that a part of the original G will deform in a direction away from the placing unit 46, that is, buckle. Here, according to the scanner 1, the moving member 74, to which an elastic force is imparted by the elastic member 89, moves toward the mounting section 46 and comes into contact with the document G, thereby pressing the document G against the mounting section 46. This causes the elastic force to act on the document G as a reaction force against the document G's own weight, thereby suppressing buckling of the document G. Furthermore, suppressing buckling of the document G prevents the ejection space for the next document G from being blocked by documents G that have already been ejected, thereby suppressing a decrease in the stackability of multiple documents G.

[0100] According to the scanner 1, buckling of the document G can be suppressed evenly in the X-axis direction, compared to a configuration in which the moving member 74 presses the end of the document G in the X-axis direction. According to the scanner 1, the discharge flap 62 displaces the document G toward the placement section 46, so that the upstream end of the document G in the −A direction can be prevented from remaining in the discharge section 27.

[0101] In the document G discharged from the discharge section 27, the downstream portion in the −A direction is more likely to be deformed by its own weight than the upstream portion. Here, with the scanner 1, the downstream portion of the document G, which is more likely to be deformed, is more likely to come into contact with the moving member 74 than the upstream portion, so deformation of the document G due to its own weight can be suppressed.

[0102] According to the scanner 1, because the first angle θ1 is smaller than the second angle θ2, the first opposing surface 87A located downstream in the -A direction is closer to the placement surface 46A than the second opposing surface 88A located upstream. This increases the contact area between the moving member 74 and the portion of the document G where deformation is likely to occur, compared to a configuration in which the first angle θ1 is equal to or greater than the second angle θ2, thereby suppressing deformation of the document G due to its own weight. Furthermore, since the distance between the second opposing surface 88A and the placement surface 46A is wider than the distance between the first opposing surface 87A and the placement surface 46A, the moving member 74 is less likely to come into contact with the document G at the beginning of the discharge of the document G. This reduces the load acting on the document G at the beginning of the discharge of the document G in the discharge section 27.

[0103] According to the scanner 1, the movable member 74 is rotated from the opposing position to the storage position. That is, the movable member 74 is stored in the storage section 13. This prevents the movable member 74 from getting caught on the original G when the original G placed on the placement section 46 is removed. According to the scanner 1, even if the document G is large enough to protrude from the placement section 46 in the -A direction, the support member 92 supports the portion of the document G that protrudes from the placement section 46, thereby suppressing deformation of the document G.

[0104] According to the scanner 1, the upstream portion of the document G in the −A direction is pressed toward the placement section 46 by the moving member 74. Furthermore, the downstream portion of the document G in the −A direction is supported by the support member 92. Here, the upstream portion of the document G that comes into contact with the moving member 74 and the downstream portion of the document G that comes into contact with the support member 92 are aligned in the -A direction. This makes it possible to suppress deformation of the document G compared to a configuration in which the moving member 74 and the support member 92 are positioned offset in the X-axis direction.

[0105] According to the scanner 1, the support member 92 is rotated from the second position to the first position and stored in the support member storage section 91. This allows the scanner 1 to be made smaller when not in use. According to the scanner 1, the support member 92 does not protrude toward the moving member 74 side relative to the imaginary line M3, so when the document G moves along the placement surface 46A during discharge, the document G can be prevented from getting caught on the support member 92.

[0106] According to the scanner 1, the third unit 5 is moved relative to the second unit 4, and thus the second discharge roller 29 is separated from the first discharge roller 28. This opens the discharge section 27, making it easier to remove the document G whose discharge has been interrupted in the discharge section 27. According to the scanner 1, the operation unit 42 is positioned outside the movement area A1 of the moving member 74, making it easier to check the movement state of the moving member 74.

[0107] According to the scanner 1, the operation unit 42 overlaps at least a part of the movement area A1 when viewed from the X-axis direction, so that the scanner 1 can be made compact. According to the scanner 1, at least a part of the buzzer 47 is hidden on the side of the placement portion 46 relative to the touch panel 44 when viewed from the operating side of the touch panel 44, so that the operating portion 42 can be made smaller in the X-axis direction intersecting with the −A direction.

[0108] The scanner 1 according to the embodiment of the present invention is based on the configuration described above, but it is of course possible to modify, omit, or combine partial configurations within the scope of the gist of the present invention.

[0109] [Modification] As shown in Figure 19, a moving member 104 may be used. The arrangement of each part will be described assuming that the moving member 104 is in the storage position. The moving member 104 is provided in place of the moving member 74 (FIG. 12) of the pressing portion 72. The configuration of the pressing portion 72 other than the moving member 74 is the same. The moving member 104 has a configuration in which a side wall portion 106 is provided in place of the side wall portion 86 (FIG. 12) in the second rotating portion 81. The side wall portion 106 is a portion that protrudes in the -B direction. The side wall portion 106 is formed in a plate shape with a predetermined thickness in the A axis direction. A grip portion 107 that protrudes from the side wall portion 106 in the -A direction is provided at the end of the side wall portion 106 in the +X direction.

[0110] Meanwhile, a plate-shaped restricting portion 108 is provided at a corner in the +X direction and +B direction of an edge of the opening 57 in the cover member 7. Specifically, the restricting portion 108 is provided at a position where it can come into contact with the +X direction end of the side wall portion 106 in the A axis direction with respect to the moving member 104 in the stored position. In this way, the restricting portion 108 restricts the moving member 104 in the stored position from rotating to the opposing position. To release the rotation restriction by the restricting portion 108, the second rotating portion 81 is rotated in the -B direction while gripping the gripping portion 107. As a result, when the second rotating portion 81 is rotated to the opposing position, the end portion of the second rotating portion 81 in the +X direction is no longer in contact with the restricting portion 108, and the moving member 104 becomes rotatable to the opposing position.

[0111] As shown in Fig. 20, a spring member 112 may be provided to press the moving member 104 from the storage position toward the opposing position. As an example, the spring member 112 is a torsion spring with its central axis directed in the B-axis direction. As a result, the moving member 104 that has passed the restricting portion 108 (Fig. 19) in the -B direction is automatically rotated to the opposing position by the pressing force of the spring member 112. When the moving member 104 is to be stored in the storage position, the storing is performed manually. In FIG. 20, the spring member 112 is shown in solid lines for clarity.

[0112] [Other Modifications] In the scanner 1, the posture of the device main body 2 relative to the stand 6 is switched by the power of the posture switching motor 40, but instead of this, or in addition to this, the posture of the device main body 2 may be switched by manual operation by the user.

[0113] In the scanner 1, the discharge section 27 may have only one contact section 29B. The moving member 74 may be located outside the two contact sections 29B in the X-axis direction. The discharge flap 62 may be provided inside the contact portion 29B in the X-axis direction. Alternatively, the discharge flap 62 may not be provided. The first distance d1 may be equal to or greater than the second distance d2, and the first angle θ1 may be equal to or greater than the second angle θ2.

[0114] The cover member 7 does not necessarily have to have the storage portion 13. The movable members 74 may be held in opposing positions without being stored in the storage section 13. A plurality of movable members 74 may be provided at intervals in the X-axis direction. The opposing positions of the movable members 74 may not be positions in which they stand upright along the A-axis direction, but may be positions in which they are inclined and extend in a direction intersecting the X-axis direction. The support member 92 may not be provided in the -A direction relative to the mounting portion 46. A plurality of support members 92 may be provided at intervals in the X-axis direction. The support member 92 may be held at the second position without being stored in the support member storage portion 91. The second angle θB may be equal to or greater than the first angle θA.

[0115] The moving member 74 and the support member 92 may be provided at positions where they completely overlap each other in the X-axis direction, or the moving member 74 and the support member 92 may be positioned so as to be offset from each other in the X-axis direction. The second unit 4 and the third unit 5 may not be separated, and the first discharge roller 28 and the second discharge roller 29 may not be separated.

[0116] When viewed in the -B direction, the operation unit 42 may overlap at least a portion of the movement area A1 of the moving member 74 in the X-axis direction. In other words, when viewed in the X-axis direction, the operation unit 42 may be disposed offset from the movement area A1 in the B-axis direction. Also, when viewed in the X-axis direction, the operation unit 42 may overlap the entire movement area A1. Only a portion of the buzzer 47 may be located between the touch panel 44 and the placement portion 46 . [Explanation of symbols]

[0117] 1...scanner, 2...device main body, 3...first unit, 4...second unit, 4A...Main body frame, 5...Third unit, 6...Stand, 6A...Main body rotation axis, 7...Cover member, 7A...First cover portion, 7B...Second cover portion, 7C...Window portion, 7D...Front surface, 8...Main body frame, 9...Frame rotation axis, 10...Upper opening / closing part, 11...Document support part, 12...edge guide, 13...storage section, 13A...recess, 14...feed roller, 15...separation roller, 16...first conveying roller pair, 17...first roller, 18... second roller, 19... feeding port, 20... second conveying roller pair, 21... third roller, 22...Fourth roller, 23...Reversing portion, 24...Upper roller, 25...Lower roller, 27...discharge portion, 28...first discharge roller, 28A...rotation shaft, 29...second discharge roller, 29A...rotating shaft, 29B...contact portion, 30...reading portion, 31...control portion, 32...first reading portion, 33... second reading unit, 34... reversing unit, 35... switching flap, 36... guide member, 37...first exhaust port, 38...second exhaust port, 39...propeller member, 40...attitude switching motor, 42... operation unit, 44... touch panel, 45A... operation button, 45B... operation button, 45C... operation button, 46... placement portion, 46A... placement surface, 46B... side wall, 46C... upper end surface, 47... buzzer, 49... circuit board, 49A... corner portion, 50... conveying motor, 51... driving pulley, 52...belt, 53...driven pulley, 57...opening, 59...FFC, 62...discharge flap, 63...Spindle part, 64...Extension part, 65...Protrusion part, 65A...Through hole, 65B...Restriction part, 66A...arm, 66B...arm, 71...support shaft, 72...pressing portion, 74...moving member, 75...first rotating portion, 75A...R portion, 76...hole portion, 77...recess portion, 78...vertical wall portion, 78A...connecting hole, 79...vertical wall portion, 79A...connecting hole, 81...second rotating portion, 81A...R portion, 82...Protrusion part, 83A...Connection shaft, 83B...Connection shaft, 84...Engagement part, 86...Side wall part, 87...first side wall portion, 87A...first opposing surface, 88...second side wall portion, 88A...second opposing surface, 89...elastic member, 89A...winding portion, 89B...arm, 91...support member storage portion, 92...support member, 93...support shaft, 93A...shaft portion, 93B...projection portion, 94...lower rotating portion, 94A...R portion, 95...hole portion, 96...connecting hole, 97...recess, 98...upper rotating portion, 98A...R portion, 99...protrusion portion, 101...gripping portion, 102...pin, 104...moving member, 106...side wall portion, 107...gripping portion, 108...regulating portion, 112...spring member, A...point, A1...moving area, A2...moving area, B...point, C...point, CP...center, D...Installation surface, d1...First interval, d2...Second interval, d3...Third interval, G...Original, GA...Surface, GB...back side, K1...virtual line, K2...virtual line, M1...virtual surface, M2...virtual surface, M3...virtual surface, R1: Document feeding path, R2: Reading transport path, R3: Reversing transport path, R4: Non-reversing transport path, SA...range, SB...range, SC...range, V...space, θ...attitude angle, θ1...first angle, θ2...Second angle, θA...First inclination angle, θB...Second inclination angle

Claims

1. a reading unit that reads a document; an inverting unit that inverts the front and back of the document read by the reading unit; a discharge section that discharges the document inverted in the reversing section in a discharge direction; a placement section on which the document discharged by the discharge section is placed; An image reading device comprising: a pressing section that presses the document toward the placement section, The pressing portion is a moving member provided so as to be movable toward the placement portion; an elastic member that applies an elastic force to the moving member so that the moving member contacts the document on the document placement section; and a cover portion facing an upstream end portion of the placement portion in the discharge direction; the cover portion has a storage portion capable of storing the moving member, the moving member is rotatably provided between a storage position when stored in the storage section and an opposing position when capable of contacting the document; An image reading device characterized by:

2. 2. The image reading device according to claim 1, the moving member is disposed so as to overlap with a center of the document in a width direction intersecting with the document discharge direction when viewed from a stacking direction of the document in the document placement section. An image reading device characterized by:

3. 3. The image reading device according to claim 1, The discharge section is a rotation shaft extending in a width direction intersecting the discharge direction; a plurality of contact portions provided on the rotary shaft at intervals in the width direction and adapted to come into contact with the document; the moving member is located between the plurality of contact portions in the width direction as viewed from the discharge direction, An image reading device characterized by:

4. 4. The image reading device according to claim 3, a displacement member that displaces the document discharged from the discharge section toward the placement section, the displacement member being provided on the outer side of the contact section in the width direction; An image reading device characterized by:

5. 5. The image reading device according to claim 1, a first distance between a downstream end of the moving member in the discharging direction and the placement portion is narrower than a second distance between an upstream end of the moving member in the discharging direction and the placement portion; An image reading device characterized by:

6. 6. The image reading device according to claim 5, the moving member has a first surface facing the placement surface of the placement section and a second surface located upstream of the first surface in the discharge direction, The angle formed by the virtual plane obtained by translating the placement surface and the first surface is defined as a first angle θ1, When the angle formed between the virtual plane and the second plane is a second angle θ2, The first angle θ1 is smaller than the second angle θ2. An image reading device characterized by:

7. 7. The image reading device according to claim 1, an apparatus body including the mounting portion; the device body is provided with a support member that is located downstream of the placement unit in the discharge direction and is capable of supporting the document; An image reading device characterized by:

8. 8. The image reading device according to claim 7, When viewed from the stacking direction of the document on the document placement section, at least a part of the moving member and at least a part of the support member are aligned in the discharge direction. An image reading device characterized by:

9. 9. The image reading device according to claim 7 or 8, the device body has a support member storage section capable of storing the support member, The support member is rotatably disposed between a first position when stored in the support member storage section and a second position when capable of supporting the document. An image reading device characterized by:

10. 10. The image reading device according to claim 7, the support member is not located on the moving member side with respect to an imaginary line extending from the placement surface of the placement section toward the support member side; An image reading device characterized by:

11. 11. The image reading device according to claim 7, a second tilt angle θB formed by the support member with respect to the horizontal direction is smaller than a first tilt angle θA formed by the moving member with respect to the horizontal direction; An image reading device characterized by:

12. 12. The image reading device according to claim 7, the discharge section includes a rotatable first discharge roller and a second discharge roller that rotates while sandwiching the document together with the first discharge roller to discharge the document; the device body has a first body portion that supports the first discharge roller and a second body portion that supports the second discharge roller, the second main body portion is provided to be movable relative to the first main body portion so that the second discharge roller can come into contact with and separate from the first discharge roller; An image reading device characterized by:

13. 13. The image reading device according to claim 1, an operation unit capable of operating the reading operation of the document by the reading unit is provided; the operation unit is located outside a movement area of the moving member when viewed from a stacking direction of the document on the document placement unit. An image reading device characterized by:

14. 14. The image reading device according to claim 13, the operation portion overlaps with at least a part of the movement area of the moving member when viewed from a width direction intersecting with the ejection direction; An image reading device characterized by:

15. 13. The image reading device according to claim 1, an operation unit capable of operating the reading operation of the document by the reading unit is provided; the operation portion overlaps with at least a part of the movement area of the moving member when viewed from a width direction intersecting with the ejection direction; An image reading device characterized by:

16. 16. The image reading device according to claim 13, the operation unit has a touch panel, The operation unit is provided with a notification unit that outputs a sound to notify the user, At least a part of the notification unit is located between the touch panel and the placement unit. An image reading device characterized by:

Images