JP2018085564A - Image reading device and recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image reading device that enables a user to easily remove a document from a document platen.SOLUTION: An image reading device comprises: a document platen including a first surface on which a document is placed and a second surface of an opposite side of the first surface; reading means that reads the document placed on the first surface from a second surface side; and a frame that is arranged with respect to one side of the four sides forming the periphery of the first surface. A side face of the frame is arranged opposite to a side face of the document platen, and a first area continuing from the side face of the frame on a top face of the frame is formed of a surface that is inclined downward from a position higher than the first surface to a position on a lower side of the first surface on the side face of the document platen. A corner part of the frame that is a position at which the top face of the frame and the side face of the frame intersect with each other is chamfered.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an image reading apparatus represented by a scanner and a recording apparatus including the image reading apparatus.

  In a scanner as an image reading device, in particular, a so-called flatbed scanner in which a reading sensor as a reading means moves under a platen glass, in particular, a so-called flatbed scanner is generally used as disclosed in Patent Document 1 In some cases, the periphery of the base glass is constituted by a frame member (frame), and the inside of the frame member is set as a document reading area.

JP 2009-237390 A

After removing a document after placing it on the platen glass and reading it, the user may slide the document along the platen glass to remove it.
At this time, the document may be caught by a frame member (frame) around the platen glass, and the edge of the document may be bent. Further, dust on the platen glass is scraped off by the edge of the document, and the dust may enter between the platen glass and the frame member (frame) due to the catch of the document edge on the frame member (frame). There is also.
Such a technical problem is not considered in the image reading apparatus described in Patent Document 1 described above.

  Accordingly, the present invention has been made in view of such a situation, and an object thereof is to provide an image reading apparatus that can more easily remove a document from a document table.

  In order to solve the above problems, an image reading apparatus according to a first aspect of the present invention includes a document table having a first surface on which a document is placed and a second surface opposite to the first surface; A reading unit that reads a document placed on the first surface from the second surface side; and a frame that is disposed on one side of the four sides that form the periphery of the first surface; Is opposed to the side surface of the document table, and a region on the upper surface of the frame that is continuous with the side surface of the frame is lower than the first surface on the side surface of the document table from a position higher than the first surface. It is formed with the surface which goes down toward the position.

  According to this aspect, the side surface of the frame faces the side surface of the document table, and a region that is continuous with the side surface of the frame on the upper surface of the frame is higher than the first surface from the side surface of the document table. In this case, when the original placed on the first surface is slid to the frame side and removed, the edge of the original is the frame. Smoothly guided to the top surface of the. As a result, the edge of the document can be prevented from being caught on the frame, and the document can be more easily removed from the document table.

According to a second aspect of the present invention, in the first aspect, a corner portion of the frame at a position where an upper surface of the frame and a side surface of the frame intersect is chamfered.
According to this aspect, since the corner portion of the frame, which is a position where the upper surface of the frame and the side surface of the frame intersect, is chamfered, the document placed on the first surface is slid toward the frame side. At the time of removal, the edge of the document can be further prevented from being caught on the frame, and as a result, the document can be more easily removed from the document table.

  According to a third aspect of the present invention, in the first or second aspect, a corner portion of the document table that is a position where the first surface of the document table and the side surface of the document table intersect is chamfered. It is characterized by being.

  According to this aspect, since the corner portion of the document table, which is the position where the first surface of the document table and the side surface of the document table intersect, is chamfered, the document can be removed from the frame side with the document table. When the document is slid and placed, the edge of the document can be prevented from being caught on the document table, and the document can be smoothly placed on the document table.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, a document table support portion that supports the document table is provided, and the document table support portion is formed on the second surface of the document table. It is characterized by supporting the inside from the side.

  According to this aspect, there is provided a document table support portion that supports the document table, and the document table support portion supports an inner side from the side surface of the document table on the second surface. Even if the positional relationship with the document table is shifted to some extent, the document table can be reliably supported by the document table support section.

  According to a fifth aspect of the present invention, in the fourth aspect, a frame support portion that supports the frame is provided, and an adhesive sheet that bonds the document table support portion and the second surface is the frame and the frame support portion. And the frame and the frame support part are bonded together.

  According to this aspect, the apparatus includes a frame support part that supports the frame, and an adhesive sheet that bonds the document table support part and the second surface extends between the frame and the frame support part. Since the frame and the frame support portion are bonded, the positional relationship between the frame and the document table is more stable, and the operational effects of the first aspect described above can be obtained stably.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects, the upper surface of the frame is continuous with the first region and is located on the side farther from the document table with the first region interposed therebetween. A second area, and when the document is slid toward the document table while being in contact with the second area, the leading edge of the document in the sliding direction is placed on the first surface of the document table. The guide plate is guided to a position away from a corner portion of the document table where the side surface of the document table intersects.

  According to this aspect, when the document is slid toward the document table while the document is in contact with the second area, the second region has the leading edge of the document in the sliding direction as the first surface of the document table. Since the guide is guided to a position away from the corner of the document table where the side of the document table intersects, when the document is slid to the document table along the upper surface of the frame, the leading edge of the document in the sliding direction Is not easily caught by the corner, and the document can be easily set on the document table.

  A recording apparatus according to a seventh aspect of the present invention includes a recording unit that records on a medium, and the image reading apparatus according to any one of the first to sixth aspects. According to this aspect, in the above configuration, the same operational effects as any of the first to sixth aspects can be obtained.

1 is an external perspective view of a printer according to an embodiment. FIG. 3 is a side sectional view of a medium conveyance path in the printer according to the present embodiment. FIG. 3 is a perspective view of an image reading unit according to the present embodiment. FIG. 3 is a perspective view of an image reading unit according to the present embodiment. Sectional drawing of the AA sectional line in FIG. FIG. 3 is an enlarged view of a boundary between a first platen and a frame. FIG. 4 is a side sectional view of a second document table and an ADF. FIG. 4 is a side sectional view of a second document table and a document pressing plate. FIG. 5 is a side sectional view of a frame and a first document table showing a modification example of a second region of the frame. FIG. 5 is a side sectional view of a frame and a first document table showing a modification example of a second region of the frame.

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

  FIG. 1 is an external perspective view of a printer according to this embodiment, FIG. 2 is a side sectional view of a medium conveyance path in the printer according to this embodiment, and FIG. 3 is a perspective view of an image reading unit according to this embodiment. FIG. 4 is a perspective view of the image reading unit according to the present embodiment.

  5 is a cross-sectional view taken along the line AA in FIG. 4, FIG. 6 is an enlarged view of the boundary between the first document table and the frame, and FIG. 7 is a side sectional view of the second document table and the ADF. 8 is a side sectional view of the second document table and the document pressing plate, and FIG. 9 is a side sectional view of the frame and the first document table, showing a modification of the second region of the frame. 10 is a side sectional view of the frame and the first platen showing an example of changing the second region of the frame.

  In the XYZ coordinate system shown in each figure, the X direction is the main scanning direction (movement direction) of the carriage, that is, the width direction of the recording apparatus, the Y direction is the depth direction of the recording apparatus, and the Z direction is the apparatus height direction. Is shown. In each figure, the + X direction side is the device width direction left side, the -X direction side is the device width direction right side, the + Y direction is the device front side, the -Y direction side is the device back side, and the + Z axis The direction side is the upper side of the apparatus, and the −Z-axis direction side is the lower side of the apparatus.

■■■ Printer overview ■■■■■■■
Referring to FIG. 1, a printer multifunction device 10 according to the present invention is shown. The printer multifunction device 10 includes an apparatus main body 12 and an image reading device 14. The printer multifunction machine 10 is described as an ink jet printer as an example of a recording apparatus, but may be a recording apparatus having a line head such as a laser printer. Further, the image reading device 14 includes a scanner, a FAX, and the like.

  The apparatus main body 12 includes an operation unit 16 provided on the front side in the apparatus depth direction, and a discharge port 18 formed on the lower side in the apparatus height direction of the operation unit 16 on the front side in the apparatus depth direction. The operation unit 16 includes a power button, a print setting button, a display panel, and the like for operating the printer multifunction device 10. A discharge tray 22 for receiving a medium on which recording has been performed by a recording head 20 described later is provided below the discharge port 18. As an example, the discharge tray 22 is configured to be extendable in the apparatus depth direction by a plurality of members as shown in FIG.

  In the apparatus main body 12, a plurality of medium accommodating portions 24 are provided on the lower side of the discharge tray 22 in the apparatus height direction. Although not shown, the medium storage unit 24 can store a plurality of media therein, and is configured to be removable from the apparatus main body 12 from the front side in the apparatus depth direction of the apparatus main body 12.

  A feeding roller 26 that is rotationally driven by a drive source (not shown) is provided on the upper side in the apparatus height direction of the medium accommodating portion 24. The feeding roller 26 rotates in contact with the uppermost medium stored in the medium storage unit 24 when the medium stored in the medium storage unit 24 is fed to the downstream side of the transport path. The uppermost medium is sent out from the medium storage unit 24 to the downstream side of the transport path.

  A first transport roller 28 and a second transport roller 30 are provided on the downstream side in the feed direction of the feed roller 26. In addition, the first transport roller 28 and the second transport roller 30 are provided with a plurality of driven rollers (not shown) so as to be driven to rotate. Further, a transport roller pair 32 is provided on the downstream side in the transport direction of the first transport roller 28 and the second transport roller 30.

  Further, a carriage 34 is provided on the downstream side of the conveyance roller pair 32 in the conveyance direction. The carriage 34 is configured to reciprocate in the apparatus width direction by a driving means (not shown). A recording head 20 as a “recording unit” is provided below the carriage 34. The recording head 20 has a plurality of nozzles formed on the lower surface thereof, and is configured to eject ink toward the medium. A discharge roller pair 36 is provided on the downstream side of the carriage 34 in the transport direction.

  Here, the medium sent out from the medium storage unit 24 by the feeding roller 26 is transported to a region facing the recording head 20 via the first transport roller 28, the second transport roller 30, and the transport roller pair 32. After recording is performed by the recording head 20, the medium is discharged by the discharge roller pair 36 through the discharge port 18 to the discharge tray 22 protruding to the front side in the apparatus depth direction.

■■■ Overview of image reading device ■■■■■■■
Next, the image reading device 14 will be described with reference to FIGS. 1, 3, and 4. The image reading device 14 includes an auto document feeder unit (hereinafter referred to as ADF unit) 38 and an image reading unit 40. The ADF unit 38 is provided on the upper part of the apparatus main body 12 so as to be rotatable with respect to the apparatus main body 12. The ADF unit 38 is configured to be openable and closable with respect to the upper part of the apparatus main body 12 with the back side of the apparatus main body 12 (the apparatus depth direction rear side in FIG. 1) as a fulcrum of the rotation shaft. In FIG. 1, a two-dot chain line portion denoted by reference numeral 38 ′ indicates a state in which the ADF portion 38 is rotated with respect to the apparatus main body 12.

  In addition, an image reading unit 40 (see FIGS. 3 and 4) is provided on the upper portion of the apparatus main body 12 at a position facing the ADF unit 38 that is closed with respect to the apparatus main body 12. The “original” in this embodiment is an example of an original such as a photograph or a document.

  The image reading unit 40 will be described. The image reading unit 40 is provided on the upper part of the apparatus main body 12 as shown in FIGS. 3 and 4. The image reading unit 40 includes an image reading mechanism 42 as a “reading unit”, a first document table 44 as a “document table”, a second document table 46, and a frame member 48. The image reading mechanism 42 is configured to be movable in the X-axis direction by a driving mechanism (not shown). Further, the image reading mechanism 42 includes an optical detector 42a (FIG. 5) for image reading extending in the Y-axis direction in FIG.

  As shown in FIGS. 3 and 4, in the image reading unit 40, the frame member 48 covering the upper portion of the apparatus main body 12 has a first opening 48 a and a second opening 48 b along the apparatus width direction. They are formed in parallel. A first document table 44 is disposed in the first opening 48a, and a second document table 46 is disposed in the second opening 48b. The first document table 44 and the second document table 46 are made of flat and transparent glass plates.

<<< About the first document table >>>
In this embodiment, the frame member 48 is formed so as to surround the four sides of the first document table 44. Specifically, as shown in FIG. 3, the frame member 48 includes a front frame portion 48 c as a “frame” that contacts the front side in the apparatus depth direction on the first document table 44, and a first document table 44. A rear frame portion 48d in contact with the rear side in the apparatus depth direction, a right frame portion 48e in contact with the right side in the apparatus width direction on the first document table 44, and a left side in the apparatus width direction on the first document table 44. And a left side frame portion 48f in contact with the frame.

  Here, referring to FIG. 5, in the first document table 44, the upper surface side in the apparatus height direction is set to the first surface 44a on which the document P is placed, and the surface opposite to the first surface 44a, that is, the surface opposite to the first surface 44a. The lower surface side is set as the second surface 44b. In the present embodiment, the upper surfaces of the rear frame portion 48d, the right frame portion 48e, and the left frame portion 48f of the frame member 48 in contact with the first document table 44 are the first in the apparatus height direction. Is set so as to be positioned above the first surface 44a of the original table 44 (see FIG. 5). That is, the frame member that surrounds the first document table 44 on three sides of the first document table 44 on the back side in the apparatus depth direction, the right side end in the device width direction, and the left side end in the device width direction. 48 is set to be one step higher than the first surface 44a.

  Here, the document P is set on the first document table 44 or taken out from the first document table 44 in a state where the ADF unit 38 is rotated to the rear side of the device with respect to the apparatus main body 12. When the document P is placed on the first surface 44a, the document P is brought into contact with the rear frame portion 48d and the right frame portion 48e, or the rear frame portion 48d and the left frame portion 48f. can do. As an example, as shown in FIG. 3, on the first surface 44a of the first document table 44, the document P is abutted against a corner portion where the back frame portion 48d and the left frame portion 48f intersect, The reference position for reading the document is set. In the present embodiment, as an example, a corner portion where the back frame portion 48d and the left frame portion 48f intersect is set as the set reference position of the document P. As will be described later, when taking out the document P from the first document table 44, the document P is slid out from the back side in the apparatus depth direction toward the front side as an example.

  The optical detector 42 a of the image reading mechanism 42 extends along the apparatus depth direction and is disposed so as to face the second surface of the first document table 44. The optical detector 42a is configured to read the reading surface of the document P placed on the first surface 44a of the first document table 44 from the second surface 44b side. For example, the optical detector 42a is configured as an optical unit that irradiates light on the document P placed on the first document table 44, receives light reflected from the document, and reads information on the document. For example, it is configured as an optical unit of a CCD (Charge Coupled Devices) system or a CIS (Contact Image Sensor) system.

  Next, the front frame portion 48c will be described with reference to FIGS. The front frame portion 48c includes a first area 48g in contact with the first document table 44 in the apparatus depth direction, and a second area 48h positioned on the apparatus depth direction front side with respect to the first area 48g. I have.

  As an example, the second region 48h is formed as a flat surface located on the upper side in the apparatus height direction from the first surface 44a of the first document table 44. In addition, the two-dot chain line to which the code | symbol Z1 shown in FIG. 6 was attached | subjected has shown the position in the apparatus height direction of the 1st surface 44a. The first region 48g is configured as an inclined surface extending from the second region 48h toward the back side in the apparatus depth direction and downward in the apparatus height direction. The side surface 48j of the rear end portion in the apparatus depth direction of the first region 48g configured as an inclined surface is the first surface 44a of the first document table 44 in the apparatus height direction, that is, the position Z1 in the apparatus height direction. Is located below.

  That is, the first region 48g, which is a region that continues from the second region 48h constituting the upper surface of the front frame portion 48c to the side surface 48j on the rear side in the apparatus depth direction of the front frame portion 48c, is the first surface in the apparatus height direction. It is configured as a surface that descends from a position higher than 44a toward a position below the position Z1 of the first surface 44a on the side surface 44c of the first document table 44. As shown in FIG. 6, the side surface 48j of the front frame portion 48c faces the side surface 44c of the first document table 44, and the side surface 48j and the side surface 44c are in contact with each other.

  Further, as shown in FIG. 6, the upper and lower end portions of the side surface 48j of the front frame portion 48c are chamfered. As an example, the corners of the upper and lower end portions of the side surface 48j in the apparatus height direction are formed as R surfaces, but may be formed as C surfaces.

  Similarly, the upper and lower corners of the side surface 44c of the first platen 44 are also chamfered. As an example, the upper and lower corners of the side surface 44c in the apparatus height direction are formed as R surfaces, but may be formed as C surfaces.

  In FIG. 6, an alternate long and short dash line arrow S1 extending from the front frame portion 48c toward the first document table 44 slides toward the first document table 44 while the document P is in contact with the upper surface of the second region 48h. The direction in which the leading edge of the document is headed is shown. Referring to the arrow S1, the document P also has a waist (rigidity) from the second region 48h set higher in the apparatus height direction than the first surface 44a of the first document table 44. Together, the first region 48g and the side 44c of the first document table 44 are guided away from the upper corner 44d (above the corner 44d) and beyond the corner 44d (without touching). The first document table 44 can be advanced. In this manner, the document P can be smoothly set on the first surface 44 a of the first document table 44 by preventing the document P from being caught on the corner 44 d.

  In the first document table 44, the upper corner portion 44d of the side surface 44c on the front side in the depth direction of the apparatus is chamfered. Therefore, even if the leading edge of the document P comes into contact with the corner portion 44d, It is possible to suppress the tip from being caught by the upper end portion of the side surface 44c of the first document table 44.

  Next, in FIG. 6, an alternate long and two short dashes arrow S <b> 2 extending from the first document table 44 toward the front frame portion 48 c indicates the direction in which the document P is taken out from the first document table 44. Referring to the arrow S2, the document P is moved from the first surface 44a of the first document table 44 to the front side in the apparatus depth direction along the first region 48g on the front frame side 48c side. It is taken out from the document table 44.

  At this time, since the upper end portion of the side surface 48j of the first region 48g on the front side frame portion 48c side is located below the first surface 44a in the apparatus height direction, the document P is placed on the first surface 44a. When the sheet is slid and moved to the front side in the depth direction of the apparatus, the edge of the document P can be prevented from being caught by the side surface 48j, and the document P can be smoothly moved from the first surface 44a of the first document table 44 to the first region 48g. Can be moved to. As a result, the document P can be smoothly taken out from the first document table 44. Further, since the upper end portion of the side surface 48j is chamfered, it is possible to further reduce the document P from being caught on the side surface 48j.

  Referring to FIG. 5 again, a document table support portion 50 is provided below the side surface 44c of the first document table 44 in the apparatus height direction. In the present embodiment, the document table support section 50 supports the first document table 44 from the second surface 44b side inside the first document table 44 rather than the side surface 44c in the apparatus depth direction. An adhesive sheet 52 is disposed between the second surface 44 b of the first document table 44 and the document table support unit 50. The adhesive sheet 52 bonds the second surface 44 b of the first document table 44 and the document table support unit 50. In the present embodiment, as an example, the adhesive sheet 52 is formed in a so-called double-sided tape shape in which an adhesive or an adhesive material is applied or pasted on both sides.

  In the present embodiment, the first document table 44 is supported by the document table support unit 50 at a position inside the first document table 44 relative to the side surface 44c in the apparatus depth direction. It is possible to suppress the intrusion of dust, dust or the like into the interior. Further, since the adhesive sheet 52 is interposed between the first document table 44 and the document table support unit 50 in the apparatus height direction, it is possible to further reduce the intrusion of dust and dirt.

  A frame support 54 is provided below the front frame 48c in the apparatus height direction. Further, an adhesive sheet 52 is interposed between the front frame portion 48c and the frame support portion 54 in the apparatus height direction. In the present embodiment, the adhesive sheet 52 extends along the apparatus depth direction, and not only bonds the second surface 44b of the first document table 44 and the document table support unit 50 but also the front frame portion 48c. And the frame support 54 are bonded together. In FIG. 6, the frame support portion 54 is not shown.

<<< Second Document Plate and ADF Unit >>>
Next, the ADF unit 38 and the second document table 46 will be described with reference to FIGS. 1, 7 and 8. As shown in FIG. 1, the ADF unit 38 includes a medium setting tray unit 56, a feeding unit 58, and a medium discharge tray unit 60. The medium set tray unit 56 is configured to be able to set a plurality of documents P. Then, the document P set on the medium setting tray unit 56 is fed by the feeding unit 58 while being curved and inverted toward the second document table 46. Then, after the reading surface of the document P is read by the image reading mechanism 42 on the second document table 46, it is discharged toward the medium discharge tray unit 60.

  Referring to FIG. 7, when reading the image of the document P using the ADF unit 38, the image reading mechanism 42 moves to the lower side in the apparatus height direction of the second document table 46, and the second document table 46. Then, the reading surface of the document P is read.

  Further, the document P sent from the medium set tray unit 56 is sent along the transport guide member 62 toward the second document table 46 on the downstream side in the transport direction by the transport roller 64. On the upstream side in the transport direction of the second document table 46, a stain prevention sheet 66 is attached via a double-sided tape. The anti-smudge sheet 66 is sent to the downstream side in the transport direction while the document P is in contact with it, so that adhesive material such as glue or dust adhering to the reading surface of the document P adheres to the second document table 46. This can be suppressed.

  A document pressing member 68 is provided at a position facing the second document table 46 in the ADF unit 38, that is, at an upper side in the apparatus height direction. As shown in FIG. 8, the document pressing member 68 is urged toward the second document table 46 by the urging member 70. In this embodiment, the urging member 70 is configured as a coil spring. In addition, illustration of the urging member 70 is omitted in FIG.

  Referring to FIG. 8, a portion 68 a upstream of the document P in the transport direction of the document pressing member 68 is in contact with the antifouling sheet 66, and a portion 68 b of the document P in the transport direction downstream is in contact with the second document table 46. doing. Here, an alternate long and short dash line S <b> 3 in FIG. 8 indicates the central axis of the urging member 70. In this embodiment, the distance from the center position of the urging member 70 to the upstream portion 68a of the document pressing member 68 in the conveyance direction is set to L1. On the other hand, the distance from the center position of the urging member 70 to the portion 68b on the downstream side in the transport direction of the document pressing member 68 is set to L2. The distance L1 is set smaller than the distance L2.

  The biasing force of the biasing member 70 acting on the upstream portion 68a of the document pressing member 68 is F1, and the biasing force of the biasing member 70 acting on the downstream portion 68b of the document pressing member 68 is F2. Since the urging force becomes stronger as the distance from the center position of the urging member 70 becomes shorter, the urging force F1 becomes larger than the urging force F2. That is, the urging force F 1 that urges the anti-stain sheet 66 by the document pressing member 68 is greater than the urging force F 2 that urges the second document table 46 by the document pressing member 68.

  Accordingly, since the biasing force of the biasing member 70 in the document pressing member 68 is larger on the upstream side in the transport direction, the reading surface of the document P can be reliably pressed against the second document table 46. As a result, the document P can be reliably read by the image reading mechanism 42.

  On the other hand, since the urging force of the urging member 70 in the document pressing member 68 is smaller on the downstream side in the transport direction, it is possible to prevent the transport of the document P after the image P is read by the image reading mechanism 42. As a result, the load fluctuation when the document P passes the document pressing member 68 can be reduced, and the document P can be smoothly conveyed toward the medium discharge tray unit 60.

(1) In this embodiment, the document table support section 50 is configured to support the first document table 44 at a position inside the side surface 44c of the first document table 44, but instead of this configuration, the side surface 44c. The document table support unit 50 may support the lower part of the document.
(2) In the present embodiment, the first region 48g in the front side frame portion 48c is configured as a downward linear inclined surface extending downward in the apparatus height direction toward the apparatus back side. Further, it may be configured as a curved surface extending downward in the apparatus height direction as it goes to the apparatus rear side, or a linear inclined surface and a curved surface may be combined. That is, when the document P is taken out from the first document table 44 toward the front side in the apparatus depth direction, the shape is guided upward in the apparatus height direction so that the edge of the document P is not caught in the first region 48g. That's fine.
(3) In the present embodiment, the right frame portion 48e and the left frame portion 48f are positioned above the first surface 44a of the first document table 44 in the apparatus height direction so that the edge of the document P is positioned. However, instead of this configuration, the frame on the side not serving as a reference for the setting position of the document P in the apparatus width direction may be the same as the configuration of the front frame portion 48c. In this case, the document P can be smoothly taken out from the frame on the side having the same configuration as that of the front frame portion 48c.

(4) The second region 48h is formed as a plane located on the upper side in the apparatus height direction from the first surface 44a of the first document table 44 as an example. As shown, the second region 48 h may be configured as an inclined surface that descends from the front side in the apparatus depth direction toward the first surface 44 a of the first document table 44. In this configuration, the second region 48h is set to have a gentler inclination angle with respect to the first surface 44a than the first region 48g. Also in this embodiment, when the document P is set from the second region 48h to the first surface 44a, the first region 48g on the front side frame portion 48c side and the first region 48g on the waist of the document P as shown by the dashed line arrow S1. The first document table 44 can be advanced beyond the side surface 44c of the first document table 44 (without contact).

(5) Next, referring to FIG. 10, the second region 48h may be configured as an inclined surface that rises from the front side in the apparatus depth direction toward the top of the first region 48g. Even in this configuration, when the document P is set on the first surface 44a from the second region 48h, the first region on the front side frame portion 48c side on the waist of the document P as shown by the dashed line arrow S1. 48 g and the side 44c of the first platen 44 can be passed over the first platen 44 (without contact).

  In summary, the image reading apparatus 14 includes a first document table 44 having a first surface 44 a on which the document P is placed and a second surface 44 b opposite to the first surface 44 a, and a first document table 44. The image reading mechanism 42 that reads the document P placed on the surface 44a from the second surface 44b side, and the side on the front side in the apparatus depth direction, which is one of the four sides that form the periphery of the first surface 44a. And a side surface 48j of the front side frame portion 48c faces a side surface 44c of the first document table 44, and a side surface 48j of the front side frame portion 48c on the upper surface of the front side frame portion 48c. The first region 48g connected to is formed by a surface that descends from a position higher than the first surface 44a toward a position below the first surface 44a on the side surface 44c of the first document table 44.

  According to the above configuration, the side surface 48j of the front frame portion 48c faces the side surface 44c of the first document table 44, and the first surface continuous with the side surface 48j of the front frame portion 48c on the upper surface of the front frame portion 48c. Since the region 48g is formed by a surface that descends from a position higher than the first surface 44a toward a position below the first surface 44a on the side surface 44c of the first document table 44, the first surface 44a. When the original P placed on the front side is slid to the front side frame portion 48c and removed, the edge of the original P is smoothly guided to the upper surface of the front side frame portion 48c. As a result, the edge of the document P can be prevented from being caught on the front frame 48c, and the document P can be more easily removed from the first document table 44.

  The corner of the front side frame portion 48c at the end in the apparatus depth direction, which is the position where the first region 48g of the front side frame portion 48c and the side surface 48j of the front side frame portion 48c intersect, is chamfered. According to this configuration, when the document P placed on the first surface 44a is slid and removed to the front side frame portion 48c side, the edge of the document P can be further prevented from being caught on the front side frame portion 48c. The document P can be removed from the first document table 44 more easily.

  The corner of the front end of the first document table 44 in the apparatus depth direction is chamfered at the position where the first surface 44a of the first document table 44 and the side surface 44c of the first document table 44 intersect. According to this configuration, when the document P is slid and placed on the first document table 44 from the front frame portion 48c side, the edge of the document P can be suppressed from being caught on the first document table 44, The document P can be smoothly placed on the first document table 44.

  A document table support unit 50 that supports the first document table 44 is provided, and the document table support unit 50 supports the inner side of the second surface 44 b from the side surface 44 c of the first document table 44. According to this configuration, even if the positional relationship between the document table support unit 50 and the first document table 44 is shifted to some extent, the first document table 44 can be reliably supported by the document table support unit 50.

  A frame support portion 54 that supports the front frame portion 48 c is provided, and an adhesive sheet 52 that bonds the document table support portion 50 and the second surface 44 b extends between the front frame portion 48 c and the frame support portion 54. The front frame portion 48c and the frame support portion 54 are bonded together. According to this configuration, the positional relationship between the front frame portion 48c and the first document table 44 is more stable.

  The upper surface of the front frame portion 48c includes a second region 48h that is continuous with the first region 48g and is located farther from the first document table 44 with the first region 48g interposed therebetween, and the second region 48h includes the second region 48h. When the document P is slid toward the first document table 44 while being in contact with the second region 48h, the leading edge of the document P in the sliding direction is connected to the first surface 44a of the first document table 44 and the first document table 44. It is guided to a position away from the corner 44d of the first document table 44 where the side surface 44c of 44 intersects. According to this configuration, when the document P is slid to the first document table 44 along the upper surface of the front frame portion 48c, the leading edge of the document P in the sliding direction is not easily caught by the corner portion 44d. The document P can be easily set on the sheet 44.

  The printer multifunction device 10 includes a recording head 20 that performs recording on a medium, and the image reading device 14 described above.

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

DESCRIPTION OF SYMBOLS 10 ... Printer multifunction device, 12 ... Apparatus main body, 14 ... Image reading apparatus, 16 ... Operation part, 18 ... Ejection port, 20 ... Recording head, 22 ... Ejection tray, 24 ... Medium storage part, 26 ... Feed roller, 28 DESCRIPTION OF SYMBOLS ... 1st conveyance roller, 30 ... 2nd conveyance roller, 32 ... Conveyance roller pair, 34 ... Carriage, 36 ... Discharge roller pair, 38 ... ADF part, 40 ... Image reading part, 42 ... Image reading mechanism, 42a ... Optical detection 44 ... first document table, 44a ... first surface, 44b ... second surface, 44c, 44d ... corner, 48j ... side surface, 46 ... second document table, 48 ... frame member, 48a ... first 48b ... second opening, 48c ... front side frame, 48d ... back side frame, 48e ... right side frame, 48f ... left side frame, 48g ... first region, 48h ... Second region, 50 ... Hara Stand support part 52 ... Adhesive sheet 54 ... Frame support part 56 ... Medium set tray part 58 ... Feeding part 60 ... Medium discharge tray part 62 ... Conveyance guide member 64 ... Conveyance roller 66 ... Dirt prevention Sheet, 68 ... Document pressing member, 68a ... Upstream part, 68b ... Downstream part, 70 ... Biasing member, F1, F2 ... Biasing force, L1, L2 ... Distance, P ... Document, S1, S2 ... Arrow , S3 ... one-dot chain line, Z1 ... height position of the first document table

Claims (7)

A document table having a first surface on which a document is placed and a second surface opposite to the first surface;
Reading means for reading a document placed on the first surface from the second surface side;
A frame arranged with respect to one of the four sides constituting the periphery of the first surface,
The side surface of the frame faces the side surface of the document table,
A first region connected to the side surface of the frame on the upper surface of the frame is formed by a surface that descends from a position higher than the first surface toward a position below the first surface on the side surface of the document table. ing,
An image reading apparatus. 2. The image reading device according to claim 1, wherein a corner portion of the frame, which is a position where an upper surface of the frame and a side surface of the frame intersect, is chamfered.
An image reading apparatus. 3. The image reading apparatus according to claim 1, wherein a corner portion of the document table that is a position where the first surface of the document table intersects the side surface of the document table is chamfered.
An image reading apparatus. The image reading apparatus according to any one of claims 1 to 3, further comprising a document table support portion that supports the document table.
The document table support portion supports an inner side than a side surface of the document table on the second surface.
An image reading apparatus. The image reading apparatus according to claim 4, further comprising a frame support portion that supports the frame.
An adhesive sheet that bonds the document table support portion and the second surface extends between the frame and the frame support portion, and bonds the frame and the frame support portion;
An image reading apparatus. 6. The image reading apparatus according to claim 1, wherein an upper surface of the frame is connected to the first region, and is located on a side farther from the document table with the first region interposed therebetween. With two areas,
The second area is configured such that when the original is in contact with the second area and is slid toward the original table, the leading edge of the original in the sliding direction is set to the first surface of the original table and the side surface of the original table. Guiding to a position away from the corner of the document table, where
An image reading apparatus. Recording means for recording on a medium;
An image reading device according to any one of claims 1 to 6,
Comprising
A recording apparatus.

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