JP6142739B2 - Image reading apparatus and medium conveying apparatus - Google Patents

Description

  The present invention relates to an image reading apparatus and a medium conveying apparatus.

  Patent Document 1 discloses an example of a conventional image reading apparatus. The image reading apparatus includes a housing, a transport unit, a tray, and a reading unit. The transport unit is provided in the housing. The transport unit transports the medium in the transport direction. The tray is supported by the housing so as to be displaceable between an open position and a closed position. In the open position, the tray is at least partially separated from the housing in the upstream side in the transport direction, and constitutes a holding surface that holds the medium from below. The reading unit is provided in the housing. The reading unit reads an image of the medium transported from the tray by the transport unit.

JP 2008-68981 A

  By the way, in the conventional image reading apparatus, although not shown, a circuit board for controlling at least one of the conveyance unit and the reading unit is provided in the housing. The circuit board is generally arranged along the bottom surface of the housing.

  An image reading apparatus specialized for reading an image on a medium without performing image formation or the like on the medium tends to reduce the installation space of the circuit board in the housing due to downsizing. On the other hand, since the size of a medium such as paper to be read is often a standardized standard paper size, the holding surface of the tray needs a certain area to hold the medium. To do. Therefore, when the tray is in the open position, the tray tends to occupy a large proportion of the size of the housing of the image reading apparatus. Here, the user may spill liquid such as water on the image reading apparatus. Since the tray occupies a large proportion, the possibility of liquid dripping on the holding surface of the tray is increased. For this reason, the liquid dripping on the holding surface of the tray is likely to enter the casing through the gap between the casing and the tray and reach the circuit board, and there is a possibility that a problem such as a short circuit may occur in the circuit board. is there.

  An object of the present invention is to provide an image reading apparatus and a medium conveying apparatus that can reduce the possibility that liquid dripping on a holding surface of a tray reaches a circuit board.

An image reading apparatus of the present invention includes a housing,
A transport unit provided in the housing for transporting a medium in a transport direction;
A holding surface that is supported by the housing so as to be displaceable between an open position and a closed position, and at the open position is at least partially separated from the housing on the upstream side in the transport direction, and holds the medium from below. Trays to configure,
A reading unit that is provided in the housing and reads an image of a medium conveyed from the tray by the conveyance unit;
A circuit board provided in the casing along the bottom surface of the casing and controlling at least one of the transport section and the reading section;
A width direction that is provided on the upper side of the circuit board in the casing and is formed in a groove shape that is open at the top, and that is perpendicular to the transport direction while facing a gap between the casing and the tray from below. And a groove portion extending to the surface.

  In the image reading apparatus of the present invention, the groove is provided on the upper side of the circuit board in the housing. The groove portion is formed in a groove shape having an open top. The groove extends in the width direction perpendicular to the transport direction while facing the gap between the housing and the tray from below. As a result, in this image reading apparatus, even if the liquid dripping on the holding surface of the tray enters the housing through the gap between the housing and the tray, the entered liquid can be stored in the groove portion.

  Therefore, in the image reading apparatus of the present invention, the possibility that the liquid dripping on the holding surface of the tray reaches the circuit board can be reduced. As a result, problems such as short circuits are unlikely to occur on the circuit board.

  It is desirable that the groove be inclined so as to become lower as it is separated from the circuit board in the width direction. According to this configuration, the liquid accumulated in the groove can be kept away from the circuit board.

  It is desirable for the housing to be formed with a discharge portion that communicates the vicinity of the lowest portion of the groove with the outside of the housing. According to this configuration, the liquid accumulated in the groove portion can be discharged to the outside of the housing via the discharge portion.

  The housing desirably has a side wall that constitutes at least a part of a side surface extending in the width direction in the vicinity of the gap. And it is desirable for the groove part to be provided in the side wall. According to this structure, a groove part can be simultaneously provided in a housing | casing by attaching a side wall to a housing | casing. As a result, simplification of the assembly work can be realized.

  It is desirable that the groove be inclined so as to become lower as it is separated from the circuit board in the width direction. And it is desirable for the side wall to be formed with a first discharge hole that communicates the vicinity of the lowest portion of the groove and the side surface. According to this configuration, the liquid accumulated in the groove can be moved away from the circuit board, and further discharged to the outside of the housing via the first discharge hole.

  The first discharge hole is preferably formed in the side wall so as to penetrate downward. According to this configuration, compared with the case where the first discharge hole is formed in the side wall so as to penetrate sideways, the liquid accumulated in the groove portion can be reliably discharged, and the first discharge hole is not noticeable. The appearance quality of the housing is improved.

  It is desirable that the first discharge hole is located outside the circuit board in the width direction. According to this configuration, the liquid that accumulates in the groove portion can be discharged out of the casing in a state of being reliably isolated from the circuit board by the first discharge hole that opens outside the circuit board in the width direction.

  The image reading apparatus of the present invention preferably further includes a drive source for driving the transport unit. It is desirable that a housing chamber for housing the drive source is formed on one end side in the width direction in the housing. The first discharge hole is preferably located on the rear side of the storage chamber. According to this configuration, the first discharge hole can be provided by utilizing the space that is vacant in the vicinity of the side surface of the housing due to the formation of the storage chamber.

  The tray is preferably supported by the casing so as to be swingable about an opening / closing axis extending in the width direction, and forms a side surface together with the side wall in the closed position. The opening / closing axis is preferably located above the groove. According to this configuration, after the liquid drips on the tray in the open position, the liquid can be stored in the groove portion even if the tray is displaced to the closed position with the liquid remaining in the tray.

  The tray extends in the width direction while being connected to the first wall that forms the holding surface, the second wall that faces the first wall and secures the guide chamber therein, and is connected to the first wall and the second wall. In this case, it is desirable to have a third wall facing the gap from the upstream side in the transport direction. It is desirable that a rail hole extending in the width direction and opening to the guide chamber is formed in the first wall. The image reading apparatus of the present invention further includes a restricting portion that protrudes from the guide chamber onto the holding surface and is provided in the rail hole so as to be slidable in the width direction and positions the medium held on the holding surface in the width direction. It is desirable. The third wall is preferably formed with a second discharge hole that communicates the guide chamber and the upper side of the groove when the tray is in the open position. According to this configuration, even if the liquid dripping on the holding surface of the tray enters the guide chamber inside the tray from the rail hole, the entered liquid can be discharged into the groove portion from the second discharge hole.

  The housing desirably has a side wall that constitutes at least a part of a side surface extending in the width direction in the vicinity of the gap. Desirably, the side wall is formed with an inlet that is located on the lower side of the tray and whose length in the width direction is smaller than the holding surface. And it is desirable for the groove part to be located above the inlet. According to this configuration, even if the liquid dripping on the holding surface of the tray enters the casing through the gap between the casing and the tray, the entering liquid may reach the vicinity of the inlet through the groove. Can be reduced.

  The housing desirably has a side wall that constitutes at least a part of a side surface extending in the width direction in the vicinity of the gap. It is desirable that the side wall is provided with a connector that is located on the lower side of the tray and is used for electrical connection between the circuit board and the outside. And it is desirable for the groove part to be located above the connector. According to this configuration, even when the liquid dripping on the holding surface of the tray enters the casing through the gap between the casing and the tray, the possibility of the entering liquid reaching the connector can be reduced by the groove portion. .

The medium carrying device of the present invention includes a housing,
A transport unit provided in the housing for transporting a medium in a transport direction;
A holding surface that is supported by the housing so as to be displaceable between an open position and a closed position, and at the open position is at least partially separated from the housing on the upstream side in the transport direction, and holds the medium from below. Trays to configure,
A processing unit that is provided in the housing and performs a predetermined process on a medium transported from the tray by the transport unit;
A circuit board provided in the casing along the bottom surface of the casing and controlling at least one of the transfer section and the processing section;
A width direction that is provided on the upper side of the circuit board in the casing and is formed in a groove shape that is open at the top, and that is perpendicular to the transport direction while facing a gap between the casing and the tray from below. And a groove portion extending to the surface.

  In the medium conveyance device of the present invention, the possibility of the liquid dripping on the holding surface of the tray reaching the circuit board can be reduced as in the image reading device of the present invention. As a result, problems such as short circuits are unlikely to occur on the circuit board.

FIG. 3 is a perspective view mainly showing the front side in a state where the tray is in an open position according to the image reading apparatus of Embodiment 1. FIG. 4 is a perspective view mainly showing a rear side in a state where the tray is in a closed position according to the image reading apparatus of Embodiment 1. FIG. 4 is a perspective view mainly showing the front side in a state where the tray is in a closed position according to the image reading apparatus of Embodiment 1. FIG. 3 is a schematic top view illustrating a state where the tray is in an open position according to the image reading apparatus of Embodiment 1. FIG. 5 is a cross-sectional view illustrating the AA cross section of FIG. 4 according to the image reading apparatus of Embodiment 1. FIG. 5 is a cross-sectional view taken along the line B-B in FIG. 4 and illustrating a state where the tray is in a closed position according to the image reading apparatus of the first embodiment. 1A is a front view of a rear wall, and FIG. 2B is a partial cross-sectional view showing a CC cross section of FIG. 1 is a partial perspective view of a tray, and FIG. 2B is a perspective view showing a third wall of the tray. FIG. 6 is a cross-sectional view illustrating a cross section similar to that of FIG. 5 according to the image reading apparatus of Embodiment 2.

  Embodiments 1 and 2 embodying the present invention will be described below with reference to the drawings.

Example 1
As illustrated in FIG. 1, an image reading apparatus 1 according to the first exemplary embodiment is an example of a specific aspect of the image reading apparatus and the medium conveyance device of the present invention. In FIG. 1, the discharge port 13 side is defined as the front side of the apparatus, and the side that comes to the left hand when facing the discharge port 13 is defined as the left side, and the front-rear, left-right, and up-down directions are displayed. The directions shown in FIG. 2 and subsequent figures are all displayed in correspondence with the directions shown in FIG. Hereinafter, each component provided in the image reading apparatus 1 will be described with reference to FIG.

<Overall configuration>
As shown in FIGS. 1 to 6, the image reading apparatus 1 includes a housing 30 and a tray 36. The housing 30 has a first housing 31 and a second housing 32.

  The first housing 31 is located above the second housing 32. The first housing 31 and the second housing 32 are opposed to each other with an interval in the vertical direction. The second housing 32 has a first side wall portion 33R and a second side wall portion 33L. The first side wall portion 33 </ b> R constitutes the right side surface of the second housing 32. The second side wall portion 33L constitutes the left side surface of the second housing 32. The first side wall 33R and the second side wall 33L extend upward and sandwich the first housing 31 from the outside in the left-right direction.

  As shown in FIGS. 1, 5, and 6, the first housing 31 has an upper surface 31A, a front surface 31B, and an upper guide surface 31G. The upper surface 31A is a flat surface facing upward. The upper surface 31A is inclined downward from the rear side toward the front side. A touch panel 70 is provided at the center of the upper surface 31A. The front surface 31B is a plane that faces the front side. The front surface 31B is continuous with the front edge of the upper surface 31A and extends vertically downward. The upper guide surface 31G is a bent plane that faces the lower side. The upper guide surface 31G is inclined downward from the lower side of the rear end edge of the upper surface 31A toward the front side. The upper guide surface 31G changes its direction horizontally at the approximate center of the first housing 31 in the front-rear direction. The upper guide surface 31G extends substantially horizontally toward the front side and is continuous with the lower end edge 31BA of the front surface 31B.

  As shown in FIGS. 1, 2, 5, and 6, the second housing 32 has a front surface 32B, a lower guide surface 32G, and a rear surface 32C. The front surface 32B is a plane facing the front side. The upper end edge 32BA of the front surface 32B is spaced downward with a gap from the lower end edge 31BA of the front surface 31B. The front surface 32B extends vertically downward. The lower guide surface 32G is a bent plane that faces the upper side. The lower guide surface 32G is inclined downward from the upper end edge of the rear surface 32C toward the front side along the upper guide surface 31G. The lower guide surface 32G changes its direction horizontally at the center of the second housing 32 in the front-rear direction. The lower guide surface 32G extends horizontally toward the front side and continues to the upper end edge 32BA of the front surface 32B.

  The rear surface 32C is a flat surface facing the rear side. The rear surface 32C extends substantially vertically toward the lower side. As shown in FIGS. 2 and 5 to 7, the second housing 32 has a rear wall 34. The rear wall 34 is an example of the “side wall” in the present invention. The rear wall 34 extends in the left-right direction, and both left and right end portions thereof are coupled to the rear end edges of the first side wall portion 33R and the second side wall portion 33R. The rear surface 32 </ b> C is formed by the outer surface of the rear wall 34. The rear surface 32C constitutes a part of the rear surface of the housing 30.

  As shown in FIG. 6, the second casing 32 has a lower card guide surface 32J and an upper card guide surface 32H. The lower card guide surface 32J is continuous with the right end portion of the horizontal portion of the lower guide surface 32G, extends horizontally toward the rear side, and reaches the rear surface 32C. The upper card guide surface 32H is spaced upward from the lower card guide surface 32J. The upper card guide surface 32H extends horizontally toward the rear side and reaches the rear surface 32C in parallel with the lower card guide surface 32J. The vertical position of the upper card guide surface 32H is substantially the same as the vertical position of the horizontal portion of the upper guide surface 31G.

  Note that the upper guide surface 31G, the lower guide surface 32G, the upper card guide surface 32H, and the lower card guide surface 32J are not limited to a configuration including a smooth flat surface, and are configured by leading edges of a plurality of ribs. Also good.

  As shown in FIGS. 4 and 6, a position where the lower card guide surface 32J continues to the right end portion in the horizontal portion of the lower guide surface 32G is defined as a joining position J1.

  As shown in FIGS. 1 and 4 to 6, the housing 30 is formed with a first introduction port 11 and a discharge port 13. The sheet SH is inserted into the first introduction port 11. The sheet SH is, for example, paper or an OHP sheet. The sheet SH is an example of the “medium” in the present invention. The sheet SH is, for example, a letter size or A4 size paper when the width is wide, and is a postcard or the like when the width is narrow. A narrow business card, card, or the like is included in the sheet SH when it is thin enough to be guided along the upper guide surface 31G and the lower guide surface 32G, which are bending planes. obtain.

  More specifically, as shown in FIG. 5, the first introduction port 11 is formed between the first housing 31 and the second housing 32. The first introduction port 11 is a gap between the rear end edge 31GA of the upper guide surface 31G and the rear end edge 32GA of the lower guide surface 32G. As shown in FIG. 1, the first introduction port 11 extends in the left-right direction from the vicinity of the right first side wall 33R to the vicinity of the left second side wall 33L. The length of the first introduction port 11 in the left-right direction is set to be longer than the width of the sheet SH.

  As shown in FIGS. 1 and 5, the sheet SH is discharged from the discharge port 13. The discharge port 13 is formed between the first housing 31 and the second housing 32. More specifically, the discharge port 13 is a gap between the lower end edge 31BA of the front surface 31B and the upper end edge 32BA of the front surface 32B. The discharge port 13 extends in the left-right direction from the vicinity of the right first side wall 33R to the vicinity of the left second side wall 33L. The length of the discharge port 13 in the left-right direction is set longer than the width of the sheet SH, like the first introduction port 11.

  As shown in FIGS. 4 to 6, the image reading apparatus 1 includes a first guide unit 10. The first guide portion 10 is a passage that is sandwiched between the upper guide surface 31G of the first housing 31 and the lower guide surface 32G of the second housing 32 from above and below. The first guide unit 10 forms a first transport path P1 shown in FIGS. The first guide unit 10 guides the sheet SH from the first introduction port 11 on the rear side to the discharge port 13 on the front side along the first conveyance path P1. In this embodiment, the transport direction is a direction from the rear side toward the front side. The width direction orthogonal to the transport direction is the left-right direction.

  As shown in FIGS. 5 and 6, the first guide portion 10 is inclined downward from the first introduction port 11 toward the front side. The first guide portion 10 bends at the center in the front-rear direction of the housing 30, changes the direction to the front side, and extends horizontally to the discharge port 13.

  As shown in FIGS. 2, 4, and 6, the housing 30 is formed with a second introduction port 12. The second introduction port 12 is an example of the “introduction port” in the present invention. A narrow card CA is inserted into the second introduction port 12. The card CA is a small-area sheet. The card CA is, for example, a business card, a cash card, a membership card or a license. The card CA is also an example of the “medium” in the present invention.

  More specifically, as shown in FIG. 6, the second introduction port 12 is formed through the rear wall 34 of the second housing 32. The second introduction port 12 opens to the middle portion of the rear surface 32C in the vertical direction and to the right first side wall 33R side. The second introduction port 12 extends in the left-right direction. The length of the second introduction port 12 in the left-right direction is smaller than the length of the first introduction port 11 in the left-right direction. The length of the second introduction port 12 in the left-right direction is set longer than the width of the card CA. The vertical position of the second inlet 12 is substantially the same as the horizontal position of the first guide 10 and the vertical position of the outlet 13. The second introduction port 12 is in a position overlapping the right end side of the first introduction port 11 in the vertical direction.

  As shown in FIGS. 3 and 6, the card CA is discharged from the right end side of the discharge port 13. In short, the sheet SH inserted from the first introduction port 11 and the card CA inserted from the second introduction port 12 are commonly discharged from the discharge port 13.

  As shown in FIGS. 4 and 6, the image reading apparatus 1 includes a second guide unit 20. The second guide portion 20 is a passage that is sandwiched between the upper card guide surface 32H and the lower card guide surface 32J of the second housing 32 from above and below. The second guide part 20 joins the first guide part 10 at the joining position J1.

  The joining position J1 at which the second guide portion 20 joins the first guide portion 10 is a bent portion that changes its direction horizontally from a portion inclined downward from the front side to the rear side of the upper guide surface 31G and the lower guide surface 32G. Is set.

  As shown in FIG. 4, on the right end side of the first guide part 10, an area extending from the junction position J <b> 1 to the discharge port 13 with the same width as the width of the second guide part 20 in the horizontal direction is defined as a card transport area 29. The second guide unit 20 and the card transport area 29 form a second transport path P2 shown in FIGS. The second transport path P2 extends horizontally from the second introduction port 12 on the rear side to the right end side of the discharge port 13 on the front side.

  The second guide unit 20 guides the card CA inserted from the second introduction port 12 to join the first guide unit 10 along the second transport path P2. And the card conveyance area | region 29 of the 1st guide part 10 guides the card | curd CA to the right end side of the discharge port 13 along the 2nd conveyance path | route P2.

  As shown in FIGS. 1 to 3 and the like, the tray 36 has a base portion 36A, an intermediate portion 36B, and a tip portion 36C. The base portion 36A is supported by the first side wall portion 33R and the second side wall portion 33L so as to be swingable around an opening / closing axis X36A extending in the left-right direction. The intermediate portion 36B is connected to the base portion 36A on the edge side far from the opening / closing axis X36A of the base portion 36A. The distal end portion 36C is connected to the intermediate portion 36B on the edge side far from the base portion 36A of the intermediate portion 36B. An operation opening 39 is formed in a rectangular shape at the center of the intermediate portion 36B.

  In the state where the tray 36 is in the open position shown in FIGS. 1, 4 and 5, the base portion 36A, the intermediate portion 36B and the tip portion 36C are raised toward the rear side so as to be continuous with the inclined portion of the lower guide surface 32G. It inclines and the 1st inlet 11 is open | released. On the other hand, when the tray 36 is in the closed position shown in FIGS. 2, 3, and 6, the base 36 </ b> A is vertical and flush with the rear surface 32 </ b> C of the second housing 32. The intermediate part 36B covers the upper surface 31A of the first housing 31 from above. The distal end portion 36C covers the front surface 31B of the first housing 31 from the front side. That is, the tray 36 is supported by the housing 30 so as to be displaceable between an open position and a closed position.

  As shown in FIGS. 2 and 3, the operation opening 39 exposes the touch panel 70 to the outside when the tray 36 is in the closed position.

  As shown in FIGS. 4 and 5, in the state where the tray 36 is in the open position, the base 36A is in the second housing 32 except for the portions supported by the first side wall 33R and the second side wall 33L. The lower guide surface 32G is spaced rearward from the rear end edge 32GA. In short, the base portion 36A is at least partially separated from the rear end edge 32GA on the upstream side in the transport direction. In this state, a gap formed between the rear end edge 32GA of the second housing 32 and at least a part spaced from the rear end edge 32GA of the base portion 36A is defined as S1. The gap S1 extends in the left-right direction from the vicinity of the first side wall 33R to the vicinity of the second side wall 33L.

  As shown in FIGS. 5, 6, and 8, the base portion 36 </ b> A includes a first wall 361, a second wall 362, and a third wall 363.

  The first wall 361 is located on the uppermost side of the base portion 36A when the tray 36 is in the open position. In this state, the surface facing the upper side of the first wall 361 is inclined upward toward the rear side so as to be continuous with the inclined portion of the lower guide surface 32G, thereby constituting a holding surface 36H. Further, the surfaces facing the upper side of the intermediate portion 36B and the tip portion 36C also form the holding surface 36H together with the first wall 361. When the user places one or a plurality of sheets SH on the tray 36, the holding surface 36H holds the sheet SH from below.

  As shown in FIGS. 2 and 6, the second introduction port 12 is located on the lower side with respect to the base portion 36 </ b> A of the tray 36. As shown in FIG. 4, the length of the second introduction port 12 in the left-right direction is smaller than the length of the holding surface 36H in the left-right direction.

  The second wall 362 faces the first wall 361 from below when the tray 36 is in the open position. As shown in FIGS. 8A and 8B, the left end edge, the right end edge, and the end edge extending in the left-right direction at a position spaced from the opening / closing axis X36A are included in the first wall 361. It protrudes toward the first wall 361 so as to surround the left edge, the right edge, and the edge extending in the left-right direction at a position spaced from the opening / closing axis X36A. The first wall 361 and the second wall 362 are integrally coupled by fitting fitting portions (not shown) formed on both end edges of the first wall 361 and the second wall 362.

  As shown in FIGS. 5, 6 and 8B, the second wall 362 has a guide chamber 362A secured therein. As shown in FIGS. 5, 6 and 8A, the first wall 361 has a pair of left and right rail holes 361H. Each rail hole 361H extends in the left-right direction and opens into the guide chamber 362A.

  As shown in FIG. 8B, the second wall 362 is formed with a plurality of ribs 362R. Each rib 362R protrudes toward the first wall 361 in the guide chamber 362A. Each rib 362R is notched in some places so as not to form a closed space in the guide chamber 362A.

  As shown in FIG. 6, the second wall 362 constitutes the rear surface of the housing 30 together with the rear surface 32C of the second housing 32 in a state where the tray 36 is in the closed position. The rear surface of the housing 30 is an example of the “side surface extending in the width direction near the gap” in the present invention.

  As shown in FIGS. 5, 6, and 8 (a), the third wall 363 is formed integrally with the first wall 361. The third wall 363 is bent toward the second wall 362 from an edge extending in the left-right direction at a position close to the opening / closing axis X36A of the first wall 361. The tip edge of the third wall 363 contacts and is connected to the edge extending in the left-right direction at a position close to the opening / closing axis X36A of the second wall 362. The third wall 363 extends in the left-right direction. As shown in FIG. 5, the third wall 363 faces the gap S <b> 1 from the rear side, that is, from the upstream side in the transport direction with the tray 36 in the open position.

  As shown in FIGS. 5, 6 and 8A, the third wall 363 has a plurality of second discharge holes 363H formed therethrough. Each second discharge hole 363H communicates with the guide chamber 362A. As shown in FIG. 5, each second discharge hole 363 </ b> H communicates the guide chamber 362 </ b> A and the gap S <b> 1 when the tray 36 is in the open position.

  As shown in FIGS. 1, 5 and 8A, the image reading apparatus 1 includes a pair of right and left restricting portions 36G. Each regulating portion 36G is provided in each rail hole 361H so as to be slidable in the left-right direction. Each regulating portion 36G protrudes from the guide chamber 362A onto the holding surface 36H. Each regulating portion 36G is connected to a rack and pinion mechanism (not shown) disposed in the guide chamber 362A. Each restricting portion 36G performs positioning in the left-right direction with the sheet SH held on the holding surface 36H of the tray 36 sandwiched from the outside in the left-right direction. At this time, each regulating portion 36G is interlocked by the rack and pinion mechanism, and positions the sheet SH with the center reference in the left-right direction at the first introduction port 11.

  As shown in FIGS. 4 to 6, the image reading apparatus 1 includes a circuit board 54, connectors 59 </ b> A, 59 </ b> B, 59 </ b> C, a drive source 40 </ b> M, a transport unit 40, and a reading unit 55. The reading unit 55 is an example of the “processing unit” in the present invention.

  As shown in FIGS. 5 and 6, the circuit board 54 is accommodated on the lower side in the second housing 32. The circuit board 54 extends in the front-rear direction from the vicinity of the front surface 32B of the second housing 32 to the vicinity of the rear surface 32C along the bottom surface 30B of the housing 30. As shown in FIGS. 2 and 4, the circuit board 54 extends in the left-right direction along the bottom surface 30 </ b> B of the housing 30. The right end edge 54R of the circuit board 54 is located in the vicinity of the first sidewall portion 33R on the right side. The left end edge 54L of the circuit board 54 is located in the vicinity of the left second side wall portion 33L and the drive source 40M. On the circuit board 54, control circuits such as a CPU, a ROM, and a RAM are mounted.

  As shown in FIG. 2, the connectors 59A, 59B, 59C are attached to the rear wall 34. The fitting portions of the connectors 59A, 59B, 59C are exposed on the rear surface 32C of the second housing 32. The connectors 59A, 59B, 59C are located below the base portion 36A of the tray 36. As shown in FIGS. 5 and 6, the connectors 59 </ b> A, 59 </ b> B, 59 </ b> C are connected to the circuit board 54 by electric wiring in the second housing 32. The connectors 59A and 59B are for electrically connecting the circuit board 54 to an external information processing apparatus, a non-volatile recording medium, and the like to transmit and receive information, and are, for example, USB connectors. The connector 59C is for electrically connecting the circuit board 54 and an external AC adapter to receive power from a household outlet or the like.

  As shown in FIG. 4, an accommodation chamber 32 </ b> M is formed on the left end side of the second housing 32. The storage chamber 32M defines a space extending in the front-rear direction so as to follow the second side wall portion 33L on the left side.

  As shown in FIG. 4, the drive source 40M is accommodated in the accommodation chamber 32M. The drive source 40M has a motor and a transmission gear group. The drive source 40M generates a drive force when the motor is controlled by the circuit board 54.

  As shown in FIGS. 4 to 6, the transport unit 40 includes a separation roller 48, a separation pad 49, an upstream transport unit 41, and a downstream transport unit 42. The reading unit 55 includes a first reading unit 55A and a second reading unit 55B. These are the separation roller 48, the separation pad 49, the upstream conveyance unit 41, and the second reading unit 55B from the rear side to the front side in the first guide unit 10, that is, from the upstream side to the downstream side in the conveyance direction. The first reading unit 55A and the downstream transport unit 42 are arranged in this order. Further, the separation roller 48 and the separation pad 49 are arranged on the first introduction port 11 side from the joining position J1, and the upstream side conveyance unit 41, the second reading unit 55B, the first reading unit 55A, and the downstream side conveyance unit 42 are , It is arranged on the discharge port 13 side from the junction position J1. Hereinafter, these configurations will be described in this order.

  As shown in FIGS. 4 and 5, the separation roller 48 is rotatably supported in the second housing 32. The upper portion of the separation roller 48 is exposed to the first guide portion 10 from the inclined portion of the lower guide surface 32G. The separation roller 48 is disposed in the center portion in the left-right direction of the first guide portion 10.

  The separation roller 48 is rotationally driven by the drive source 40M when the circuit board 54 controls the drive source 40M. The separation roller 48 rotates while being in contact with the sheet SH placed on the tray 36, thereby sending the sheet SH to the first guide unit 10.

  As shown in FIG. 5, the separation pad 49 is assembled to the first housing 31. The separation pad 49 is exposed to the first guide portion 10 on the upper guide surface 31G. The separation pad 49 is a plate-like body made of a friction member such as rubber or elastomer. The separation pad 49 is biased by a biasing member (not shown) and is pressed against the separation roller 48. Thereby, the separation roller 48 and the separation pad 49 can be separated one by one with the sheet SH conveyed in the first guide unit 10 interposed therebetween.

  As shown in FIGS. 4 to 6, the upstream side conveyance unit 41 includes first conveyance roller pairs 41 </ b> A and 41 </ b> B and a second conveyance roller pair 41 </ b> D. The first transport roller pair 41A, 41B and the second transport roller pair 41D are arranged at the same position in the transport direction. Each of the first transport roller pair 41A, 41B and the second transport roller pair 41D includes a drive roller that is driven to rotate by a drive source 40M and a driven roller that faces the drive roller.

  The first transport roller pair 41 </ b> A, 41 </ b> B is located outside the card transport area 29. The first conveying roller pair 41 </ b> A and 41 </ b> B nips and conveys the sheet SH in the first guide unit 10. The second conveyance roller pair 41 </ b> D is located inside the card conveyance area 29. The second conveying roller pair 41D nips and conveys the card CA in the card conveying area 29 of the first guide unit 10. Further, the second conveying roller pair 41 </ b> D nips and conveys the sheet SH when the sheet SH is wide enough to pass the card conveying area 29.

  The second reading unit 55B is assembled to the second housing 32. More specifically, the second reading unit 55B includes a Contact Image Sensor (hereinafter abbreviated as “CIS”), a CIS holder, a contact glass, and the like. The upper surface of the second reading unit 55B is exposed to the first guide unit 10 in the horizontal portion of the lower guide surface 32G.

  The first reading unit 55A is assembled to the first housing 31. More specifically, the first reading unit 55A includes a CIS, a CIS holder, a contact glass, and the like. The lower surface of the first reading unit 55A is exposed to the first guide unit 10 in the horizontal portion of the upper guide surface 31G.

  As shown in FIG. 4, the first reading unit 55A and the second reading unit 55B extend in the left-right direction from the vicinity of the right first side wall 33R to the vicinity of the left second side wall 33L. As shown in FIGS. 4 to 6, the first reading unit 55 </ b> A and the second reading unit 55 </ b> B are opposed to each other so as to sandwich the entire first guide unit 10 including the card transport area 29 from the vertical direction.

  With the above configuration, when the sheet SH is conveyed by the first guide unit 10, the first reading unit 55 </ b> A and the second reading unit 55 </ b> B read images on both sides of the sheet SH. Further, when the card CA guided by the second guide unit 20 and joined to the first guide unit 10 is conveyed in the card conveyance area 29, the first reading unit 55A and the second reading unit 55B are both surfaces of the card CA. Read the image.

  As shown in FIGS. 4 to 6, the downstream transport unit 42 includes a first transport roller pair 42A, 42B, 42C, and a second transport roller pair 42D. The first transport roller pair 42A, 42B, 42C and the second transport roller pair 42D are arranged at the same position in the transport direction. Each of the first transport roller pair 42A, 42B, 42C and the second transport roller pair 42D includes a drive roller that is driven to rotate by a drive source 40M and a driven roller that faces the drive roller.

  The first transport roller pairs 42 </ b> A, 42 </ b> B, 42 </ b> C are located outside the card transport area 29. The first conveyance roller pairs 42A, 42B, and 42C rotate while nipping the sheet SH conveyed in the first guide unit 10, and discharge the sheet SH from the discharge port 13 to the outside of the housing 30. The second transport roller pair 42 </ b> D is located inside the card transport area 29. The second transport roller pair 42 </ b> D rotates while nipping the card CA on which an image has been read in the card transport area 29, and discharges the card CA from the right end side of the discharge port 13 to the outside of the housing 30. Further, when the sheet SH is wide enough to pass the card transport area 29, the second transport roller pair 42D nips the sheet SH and discharges the sheet SH from the discharge port 13 to the outside of the housing 30.

  As shown in FIGS. 1 and 5, the touch panel 70 is assembled on the upper surface 31 </ b> A side inside the first housing 31. The touch panel 70 is exposed to the outside through a rectangular touch panel opening 31H cut out in the upper surface 31A. The touch panel 70 includes a liquid crystal panel, a light source such as a fluorescent lamp or an LED that emits light from the back side of the liquid crystal panel, and a contact sensing film bonded to the surface of the liquid crystal panel.

  The touch panel 70 is controlled by the circuit board 54 to display an operation status of the image reading apparatus 1 such as a processing status or an error status of the image reading operation. Further, the touch panel 70 receives an operation from the outside. Specifically, the touch panel 70 displays various buttons such as a button for starting image reading and a setting input button. When the user touches the touch panel 70 in order to perform an execution instruction or a setting input corresponding to any button, the touch panel 70 receives the operation and transmits it to the circuit board 54.

<Image reading operation of sheet and card>
In the image reading apparatus 1, images of the sheet SH and the card CA are read as follows.

  As shown in FIGS. 1 and 5, when the image of the sheet SH is read, the tray 36 is opened by the user. If the tray 36 is in an open state, that state is maintained. Then, the sheet SH is placed on the tray 36 by the user. When the sheet SH is instructed to read the sheet SH from the touch panel 70 or when the sheet SH is instructed to be read from the external information processing apparatus via the connectors 59A and 59B, the circuit board 54 is detected by a sheet detection sensor (not shown). After confirming that the sheet SH is held on the holding surface 36H of the tray 36, the image reading operation of the sheet SH is started.

  Then, the circuit board 54 controls the driving source 40M to generate a driving force. Thereby, first, the separation roller 48 rotates while sandwiching the separation pad 49 and the sheet SH. The separation roller 48 introduces the sheet SH on the tray 36 from the first introduction port 11 and sends the sheet SH to the first guide unit 10. At this time, when a plurality of sheets SH are going to be conveyed in an overlapped state, the sheets SH can be separated one by one by a frictional force between the separation pad 49 and the sheet SH.

  Next, the sheet SH sent to the separation roller 48 is conveyed by the first guide unit 10 by the first conveyance roller pair 41A, 41B and the second conveyance roller pair 41D of the upstream conveyance unit 41. Images on both sides of the sheet SH conveyed in the first guide unit 10 are read by the first reading unit 55A and the second reading unit 55B. The sheet SH from which the image has been read is discharged from the discharge port 13 to the outside of the housing 30 by the first transport roller pair 42A, 42B, 42C and the second transport roller pair 42D of the downstream transport unit 42.

  On the other hand, as shown in FIGS. 2, 3 and 6, when the image of the card CA is read, the tray 36 is closed by the user. If the tray 36 is in a closed state, that state is maintained. Then, as shown in FIG. 2, the card CA is inserted into the second introduction port 12 from the rear side of the housing 30 by the user. Then, the card CA passes through the second guide portion 20, and its tip reaches the card transport area 29. The circuit board 54 is detected by a card detection sensor (not shown) when a card CA reading instruction is received from the touch panel 70 or when a card CA reading instruction is received from the external information processing apparatus via the connectors 59A and 59B. After confirming that the card CA is inserted from the second introduction port 12, the image reading operation of the card CA is started.

  Then, the circuit board 54 controls the driving source 40M to generate a driving force. Thus, the card CA is transported in the card transport area 29 by the second transport roller pair 41D of the upstream transport section 41. Images on both sides of the card CA conveyed in the card conveyance area 29 are read by the first reading unit 55A and the second reading unit 55B. As shown in FIG. 3, the card CA from which the image has been read is discharged from the right end side of the discharge port 13 to the outside of the housing 30 by the second transfer roller pair 42 </ b> D of the downstream transfer unit 42.

<Configuration of groove>
As shown in FIGS. 5 to 7, the image forming apparatus 1 includes a groove 100. The groove part 100 is provided in the rear wall 34. More specifically, when the rear wall 34 is manufactured by injection molding of a thermoplastic resin or the like, the rear wall 34 is integrally formed with a surface facing the front side of the rear wall 34.

  The groove part 100 has a bottom wall part 100B and a groove wall 100A. The bottom wall portion 100B protrudes from the surface facing the front side of the rear wall 34 toward the front side, and extends in the left-right direction. The groove wall 100A is formed continuously with the front end edge of the bottom wall portion 100B. The groove wall 100A is bent from the front edge of the bottom wall portion 100B, protrudes upward, and extends in the left-right direction. The groove portion 100 is formed in a groove shape having an upper portion opened by a surface facing the front side of the rear wall 34, a surface facing the upper side of the bottom wall portion 100B, and a surface facing the rear side of the groove wall 100A.

  As shown in FIGS. 5 and 6, the bottom wall portion 100 </ b> B and the groove wall 100 </ b> A are located on the upper side of the circuit board 54. The groove portion 100 extends in the left-right direction while facing the gap S1 between the housing 30 and the tray 36 from below. The opening / closing axis X36A of the base portion 36A is located above the groove portion 100. As shown in FIG. 5, each second discharge hole 363 </ b> H communicates the guide chamber 362 </ b> A and the upper side of the groove portion 100 by communicating the guide chamber 362 </ b> A with the gap S <b> 1 when the tray 36 is in the open position. Further, as shown in FIG. 6, even when the tray 36 is in the closed position, the third wall 363 is positioned above the groove portion 100, and each second discharge hole 363H extends between the guide chamber 362A and the upper portion of the groove portion 100. Communicate.

  As shown in FIG. 7, the right end side of the bottom wall portion 100 </ b> B extends horizontally along the upper end edge of the second introduction port 12. The bottom wall portion 100B is inclined downward on the left side of the second inlet 12 above the connectors 59A, 59B, 59C. The left end side of the bottom wall portion 100B extends to the vicinity of the left second side wall portion 33L. The left end side of the bottom wall portion 100B is the lowest among the entire bottom wall portion 100B. The lowest portion 100C of the bottom wall portion 100B shown in FIG. 7 is separated to the left from the left end edge 54L of the circuit board 54 shown in FIG. In short, the bottom wall portion 100B is inclined so as to become lower as it is separated from the circuit board 54 in the left-right direction.

  A first discharge hole 110 is formed in the rear wall 34 so as to penetrate downward. The vicinity of the lowest portion 100C on the left end side of the bottom wall portion 100B communicates with the rear surface 32C. As shown in FIG. 2 and FIG. 7B, the portion of the rear surface 32 </ b> C where the first discharge hole 110 is opened is locally recessed to the front, thereby forming a downward surface. For this reason, it is difficult to visually recognize the first discharge hole 110 from the rear side of the housing 30. As shown in FIGS. 2 and 4, the first discharge hole 110 is located on the outer side in the left-right direction from the circuit board 54, more specifically on the left side of the left edge 54 </ b> L of the circuit board 54. As shown in FIG. 4, the first discharge hole 110 is located on the rear side of the storage chamber 32M.

<Effect>
In the image reading apparatus 1 according to the first embodiment, as illustrated in FIG. 5, the groove portion 100 is provided on the upper side of the circuit board 54 in the housing 30. The groove portion 100 is formed in a groove shape having an upper portion opened by a surface facing the front side of the rear wall 34, a surface facing the upper side of the bottom wall portion 100B, and a surface facing the rear side of the groove wall 100A. And the groove part 100 is extended in the left-right direction, facing the clearance gap S1 between the housing | casing 30 and the tray 36 from lower side. Thereby, in the image reading apparatus 1, the liquid dripping on the holding surface 36 </ b> H of the tray 36 enters the housing 30 through the gap S <b> 1 between the housing 30 and the tray 36 in a state where the tray 36 is in the open position. Even so, the entering liquid can be stored in the groove 100.

  Further, as shown in FIGS. 4 and 7, the bottom wall portion 100 </ b> B of the groove portion 100 is inclined so as to become lower as it is separated from the circuit board 54 in the left-right direction. The lowest portion 100C of the bottom wall portion 100B shown in FIG. 7 is separated to the left from the left end edge 54L of the circuit board 54 shown in FIG. The first discharge hole 110 formed in the rear wall 34 communicates the vicinity of the lowest portion 100C on the left end side of the groove 100 and the rear surface 32C. Thereby, in the image reading apparatus 1, the liquid accumulated in the groove portion 100 can be moved away from the circuit board 54 and further discharged to the outside of the housing 30 via the first discharge hole 110.

  As shown in FIG. 5, the third wall 363 has a second discharge hole 363 </ b> H that communicates the guide chamber 362 </ b> A and the upper side of the groove 100 when the tray 36 is in the open position. As a result, in this image reading apparatus 1, even if the liquid dripping onto the holding surface 36H of the tray 36 enters the guide chamber 362A inside the base portion 36A from the rail hole 361H, the liquid that has entered enters the guide chamber 362A from the second discharge hole 363H. It can be discharged into the groove 100.

  Therefore, in the image reading apparatus 1 according to the first embodiment, the possibility that the liquid dripping on the holding surface 36H of the tray 36 reaches the circuit board 54 can be reduced. As a result, problems such as a short circuit are unlikely to occur in the circuit board 54.

  Further, in the image reading apparatus 1, the opening / closing axis X36A of the base portion 36A is positioned above the groove portion 100 as shown in FIG. Accordingly, in the image reading apparatus 1, the third wall 363 of the base portion 36A is positioned above the groove portion 100 and the second discharge hole 363H is positioned above the guide chamber 362A and the groove portion 100 in a state where the tray 36 is in the closed position. Communicate with. For this reason, even if the liquid drips on the base 36A or the like of the tray 36 in the open position and then the liquid remains in the guide chamber 362A of the base 36A, the liquid is allowed to flow into the groove portion even if the tray 36 is displaced to the closed position. 100 can be stored.

  Further, in this image reading apparatus 1, since the groove portion 100 is integrally formed with the rear wall 34, the groove portion 100 can be simultaneously provided in the housing 30 by assembling the rear wall 34 to the housing 30. As a result, in this image reading apparatus 1, the assembling work can be simplified.

  In the image reading apparatus 1, as shown in FIG. 8B, the first discharge hole 110 is formed in the rear wall 34 so as to penetrate downward. As a result, in this image reading apparatus 1, the liquid accumulated in the groove 100 can be reliably discharged as compared with the case where the first discharge hole 110 is formed in the rear wall 34 so as to penetrate sideways. The first discharge hole 110 is not conspicuous, and the appearance quality of the housing 30 is improved.

  In the image reading apparatus 1, as shown in FIGS. 2 and 4, the liquid that accumulates in the groove portion 100 is reliably removed from the circuit board 54 by the first discharge hole 110 that opens on the left side of the left end edge 54 </ b> L of the circuit board 54. It can be discharged to the outside of the housing 30 in a state of being isolated.

  Furthermore, in the image reading apparatus 1, as shown in FIG. 4, by using the space vacated in the vicinity of the rear surface 32C of the second casing 32 due to the formation of the storage chamber 32M in the second casing 32, Since the first discharge hole 110 is provided, an increase in size can be suppressed.

  In the image reading apparatus 1, the groove 100 is located above the second introduction port 12 as shown in FIGS. 5 to 7. As a result, in this image reading apparatus 1, even if the liquid dripping on the holding surface 36 </ b> H of the tray 36 enters the housing 30 from the gap S <b> 1 between the housing 30 and the tray 36, the entry is made by the groove portion 100. The possibility that the liquid that has reached the vicinity of the second inlet 12 can be reduced.

  Further, in the image reading apparatus 1, as shown in FIGS. 5 and 6, the groove portion 100 is located above the connectors 59A, 59B, and 59C. As a result, in this image reading apparatus 1, even if the liquid dripping on the holding surface 36 </ b> H of the tray 36 enters the housing 30 from the gap S <b> 1 between the housing 30 and the tray 36, the entry is made by the groove portion 100. The possibility that the liquid that has reached the connectors 59A, 59B, 59C can be reduced.

(Example 2)
As shown in FIG. 10, the image reading apparatus according to the second embodiment employs a groove 200 instead of the groove 100 in the image reading apparatus 1 according to the first embodiment. Other configurations of the second embodiment are the same as those of the first embodiment. For this reason, about the same structure as Example 1, the same code | symbol is attached | subjected and description is abbreviate | omitted or simplified.

  The groove part 200 is provided separately from the rear wall 34. More specifically, the groove part 200 separates the bottom wall part 100B and the groove wall 100A in the groove part 100 of the first embodiment from the rear wall 34, and a groove wall 200A facing the groove wall 100A is added to the rear end edge of the bottom wall part 100B. doing.

  The groove part 200 has the discharge part 210 instead of the 1st discharge hole 110 in the location in which the 1st discharge hole 110 was formed in the bottom wall part 100B. The discharge part 210 forms a tubular shape from the lowest part of the bottom wall part 100B and extends downward, penetrates the rear wall 34 and opens to the rear face 32C.

  Similarly to the image reading apparatus 1 of the first embodiment, the image reading apparatus of the second embodiment having such a configuration can reduce the possibility that the liquid dripping on the holding surface 36H of the tray 36 reaches the circuit board 54. As a result, problems such as a short circuit are unlikely to occur in the circuit board 54.

  In the above, the present invention has been described with reference to the first and second embodiments. However, the present invention is not limited to the first and second embodiments, and can be appropriately modified and applied without departing from the spirit of the present invention. Needless to say.

  For example, the tray may be slidably supported by the housing and displaced between the open position and the closed position.

DESCRIPTION OF SYMBOLS 1 ... Image reading apparatus (medium conveyance apparatus), 30 ... Housing | casing, 36 ... Tray, 36H ... Holding surface SH, CA ... Medium (SH ... sheet | seat, CA ... card), 55 ... Reading part (processing part)
40: conveying section, 30B: bottom surface of casing, 54: circuit board, X36A: opening / closing axis S1: clearance between casing and tray, 100, 200: groove section, 34: side wall (rear wall)
DESCRIPTION OF SYMBOLS 110 ... 1st discharge hole, 210 ... discharge part, 40M ... drive source, 32M ... storage chamber 361 ... 1st wall, 362 ... 2nd wall, 363 ... 3rd wall, 362A ... guide chamber 361H ... rail hole, 36G ... Restricting part, 363H ... second discharge hole 12 ... introducing port (second introducing port), 59A, 59B, 59C ... connector

Claims (12)

A housing,
A transport unit provided in the housing for transporting a medium in a transport direction;
A holding surface that is supported by the housing so as to be displaceable between an open position and a closed position, and at the open position is at least partially separated from the housing on the upstream side in the transport direction, and holds the medium from below. Trays to configure,
A reading unit that is provided in the housing and reads an image of a medium conveyed from the tray by the conveyance unit;
A circuit board provided in the casing along the bottom surface of the casing and controlling at least one of the transport section and the reading section;
A width direction that is provided on the upper side of the circuit board in the casing and is formed in a groove shape that is open at the top, and that is perpendicular to the transport direction while facing a gap between the casing and the tray from below. and a groove extending to,
The housing includes a side wall constituting at least a part of a side surface extending in the width direction in the vicinity of the gap,
The image reading device , wherein the groove is provided on the side wall .   The image reading apparatus according to claim 1, wherein the groove portion is inclined so as to become lower as it is separated from the circuit board in the width direction.   The image reading apparatus according to claim 2, wherein the housing is formed with a discharge portion that communicates the vicinity of the lowest portion of the groove with the outside of the housing. The groove portion is inclined so as to become lower as it is separated from the circuit board in the width direction,
3. The image reading apparatus according to claim 1, wherein a first discharge hole is formed in the side wall to communicate the vicinity of the lowest portion of the groove and the side surface. The image reading apparatus according to claim 4 , wherein the first discharge hole is formed in the side wall so as to penetrate downward. Wherein the first discharge hole, the image reading apparatus according to claim 4 or 5, wherein is located outside of the width direction than the circuit board. A drive source for driving the transport unit;
A storage chamber for storing the drive source is formed on one end side in the width direction in the housing,
The image reading apparatus according to claim 6 , wherein the first discharge hole is located on a rear side of the storage chamber. The tray is supported by the housing so as to be swingable around an opening / closing axis extending in the width direction, and forms the side surface together with the side wall at the closed position,
The opening and closing axis, the image reading apparatus of any one of claims 1 to 7 is positioned on the upper side of the groove. A housing,
A transport unit provided in the housing for transporting a medium in a transport direction;
A holding surface that is supported by the housing so as to be displaceable between an open position and a closed position, and at the open position is at least partially separated from the housing on the upstream side in the transport direction, and holds the medium from below. Trays to configure,
A reading unit that is provided in the housing and reads an image of a medium conveyed from the tray by the conveyance unit;
A circuit board provided in the casing along the bottom surface of the casing and controlling at least one of the transport section and the reading section;
A width direction that is provided on the upper side of the circuit board in the casing and is formed in a groove shape that is open at the top, and that is perpendicular to the transport direction while facing a gap between the casing and the tray from below. And a groove extending to
The tray is connected to the first wall that forms the holding surface, the second wall that faces the first wall and secures a guide chamber therein, and the width while being connected to the first wall and the second wall. A third wall extending in the direction and facing the gap from the upstream side in the transport direction at the open position;
A rail hole extending in the width direction and opening in the guide chamber is formed in the first wall,
A regulating part that projects from the guide chamber onto the holding surface and is provided in the rail hole so as to be slidable in the width direction, and positions the medium held on the holding surface in the width direction;
2. The image reading apparatus according to claim 1, wherein a second discharge hole is formed in the third wall to communicate the guide chamber and the upper side of the groove when the tray is in the open position . A housing,
A transport unit provided in the housing for transporting a medium in a transport direction;
A holding surface that is supported by the housing so as to be displaceable between an open position and a closed position, and at the open position is at least partially separated from the housing on the upstream side in the transport direction, and holds the medium from below. Trays to configure,
A reading unit that is provided in the housing and reads an image of a medium conveyed from the tray by the conveyance unit;
A circuit board provided in the casing along the bottom surface of the casing and controlling at least one of the transport section and the reading section;
A width direction that is provided on the upper side of the circuit board in the casing and is formed in a groove shape that is open at the top, and that is perpendicular to the transport direction while facing a gap between the casing and the tray from below. And a groove extending to
The housing includes a side wall constituting at least a part of a side surface extending in the width direction in the vicinity of the gap,
The side wall is formed with an introduction port located below the tray and having a width in the width direction smaller than the holding surface,
The image reading apparatus , wherein the groove is positioned above the introduction port . A housing,
A transport unit provided in the housing for transporting a medium in a transport direction;
A holding surface that is supported by the housing so as to be displaceable between an open position and a closed position, and at the open position is at least partially separated from the housing on the upstream side in the transport direction, and holds the medium from below. Trays to configure,
A reading unit that is provided in the housing and reads an image of a medium conveyed from the tray by the conveyance unit;
A circuit board provided in the casing along the bottom surface of the casing and controlling at least one of the transport section and the reading section;
A width direction that is provided on the upper side of the circuit board in the casing and is formed in a groove shape that is open at the top, and that is perpendicular to the transport direction while facing a gap between the casing and the tray from below. And a groove extending to
The housing includes a side wall constituting at least a part of a side surface extending in the width direction in the vicinity of the gap,
The side wall is provided on the lower side of the tray, and a connector used for electrical connection between the circuit board and the outside is provided.
The image reading apparatus , wherein the groove is positioned above the connector . A housing,
A transport unit provided in the housing for transporting a medium in a transport direction;
A holding surface that is supported by the housing so as to be displaceable between an open position and a closed position, and at the open position is at least partially separated from the housing on the upstream side in the transport direction, and holds the medium from below. Trays to configure,
A processing unit that is provided in the housing and performs a predetermined process on a medium transported from the tray by the transport unit;
A circuit board provided in the casing along the bottom surface of the casing and controlling at least one of the transfer section and the processing section;
A width direction that is provided on the upper side of the circuit board in the casing and is formed in a groove shape that is open at the top, and that is perpendicular to the transport direction while facing a gap between the casing and the tray from below. and a groove extending to,
The housing includes a side wall constituting at least a part of a side surface extending in the width direction in the vicinity of the gap,
The side wall is provided on the lower side of the tray, and a connector used for electrical connection between the circuit board and the outside is provided.
The medium conveying apparatus , wherein the groove is located above the connector .

Images