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JP-7855359-B2 - Reader

JP7855359B2JP 7855359 B2JP7855359 B2JP 7855359B2JP-7855359-B2

Inventors

  • 庭前 裕樹
  • 中西 弘樹
  • 辻 馨太郎

Assignees

  • キヤノン株式会社

Dates

Publication Date
20260508
Application Date
20220210

Claims (16)

  1. A document stand on which the document is placed, A cover that can be opened and closed in a position that covers the document tray and a position that leaves the document tray open, A support member provided adjacent to the document tray, An exterior member having a surface that is higher than the document table and adjacent to the support member on the opposite side of the document table, A reading device that includes the following, which reads an image from a document placed on the document table: The support member has a first inclined portion on the side of the document table that becomes higher as it moves away from the document table, and a second inclined portion on the side of the exterior member that becomes higher as it moves closer to the exterior member. The first inclined portion and the second inclined portion are positioned higher than the document tray and lower than the closed cover and the surface of the exterior member, respectively. There is a gap between the closed cover and the edge of the exterior member, The reading device is characterized in that the second inclined portion extends to a position closer to the exterior member than the cover in the direction opposite to the edge of the cover that forms the gap and the edge of the exterior member .
  2. The reading device according to claim 1, characterized in that the position with the highest height from the document glass in the second inclined section is higher than the position with the highest height from the document glass in the first inclined section.
  3. The reading device according to claim 1 or 2, characterized in that the height of the support member from the document table gradually increases as it moves from the document table side toward the exterior member side.
  4. The system includes a reading means that reads the image of a document placed on the document table using elements arranged in the main scanning direction, The reading device according to any one of claims 1 to 3 , characterized in that the gap is formed along the main scanning direction.
  5. The reading device according to claim 4, characterized in that the cover is rotatably mounted around a pivot axis extending along the sub-scanning direction in which the reading device moves.
  6. The aforementioned gap is A first gap, which is a region closer to the rotation axis than the document platen in the main scanning direction, A second gap is a region in the main scanning direction that is further from the rotation axis than the first gap, Includes, The reading device according to claim 5, characterized in that the second gap is wider than the first gap and is aligned with the document table in the sub-scanning direction .
  7. The edge of the cover has a pair of first opposing sides extending parallel to the main scanning direction and a pair of second opposing sides extending parallel to the sub-scanning direction. The first opposing side includes the first side closest to the exterior member, The reading device according to claim 6 , characterized in that the first side forms the second gap between itself and the edge of the exterior member.
  8. The second opposing side includes a second side closer to the axis of rotation and a third side further from the axis of rotation. The end region of the first side that forms a corner with the second side , and the end region that is closer to the second side than the document platen in the main scanning direction , forms the first gap with the edge of the exterior member. The reading device according to claim 7, characterized in that the region of the first side excluding the end region forms the second gap between it and the edge of the exterior member.
  9. The reading device according to any one of claims 2 to 8, characterized in that the support member has a flat portion parallel to the document table between the first inclined portion and the second inclined portion.
  10. The reading device according to any one of claims 2 to 9, characterized in that the exterior member is configured to be movable so as to retract from a position adjacent to the support member.
  11. The reading device according to any one of claims 2 to 10, characterized in that the upper surface of the closed cover and the upper surface of the exterior member are at the same height.
  12. The aforementioned support member is The first inclined portion is provided so as to surround the outer circumference of the document tray, The reading device according to any one of claims 2 to 11, characterized in that, of the region outside the first inclined portion, at least the region on the opposite side of the document glass from the region adjacent to the exterior member is a plane parallel to the document glass.
  13. The exterior member, when the aforementioned surface is considered the first surface, has a second surface adjacent to the support member and higher than the document table, on the opposite side of the first surface that straddles the document table. The second inclined portion is inclined such that it becomes higher as it approaches the first surface. The aforementioned support member is The first inclined portion is provided so as to surround the outer circumference of the document tray, A third inclined portion is provided in a region closer to the second surface than the first inclined portion, and is inclined such that it becomes higher as it approaches the second surface. The reading device according to any one of claims 6 to 8, characterized in that there is a third gap of the same size as the first gap and a fourth gap of the same size as the second gap between the closed cover and the edge of the second surface.
  14. The reading device according to claim 13, characterized in that the third inclined portion extends to a position closer to the second surface than the cover, in the direction opposite to the edge of the cover that forms the fourth gap and the edge of the second surface.
  15. The cover is provided so as to be rotatable about a pivot axis that extends along the direction in which the first surface and the second surface that sandwich the document table are aligned, The rotation axis is located on one side of the document table in a direction perpendicular to the alignment direction. The exterior member has a third surface adjacent to the support member and higher than the document table, on the side opposite to the pivot axis with respect to the document table. The support member has a fourth inclined portion in the region outside the first inclined portion, on the side further from the rotation axis relative to the document table in a direction perpendicular to the alignment direction, such that it becomes higher as it moves further away from the document table. The reading device according to claim 13 or 14, characterized in that there is a fifth gap between the closed cover and the edge of the third surface, which is the same size as the second gap.
  16. The reading device according to claim 15, characterized in that the fourth inclined portion extends to a position closer to the third surface than the cover in the direction opposite to the edge of the cover that forms the fifth gap and the edge of the third surface.

Description

This invention relates to a reading device for reading images from a document placed on a document tray. As an image forming apparatus, a multi-function printer (MFP) that integrates a reading device and a printing device (recording device) into a single unit is known (Patent Document 1), and various configurations of such devices have been proposed. The MFP described in Patent Document 1 has a reading device with a cover that covers the document glass, which can be opened and closed. Furthermore, a frame for an interface panel, including a display and operation panel, is provided next to the cover. This MFP is designed so that the closed cover and the interface panel frame are at the same height, giving the device an aesthetically unified appearance. Patent Document 2 describes an MFP configured so that a gap is provided between two hinges that rotatably support the cover, allowing a document larger than the document glass to be passed through the gap when the reading device reads a document. Japanese Patent Publication No. 2010-6033Japanese Patent Publication No. 2015-61114 This is a perspective view of the external appearance of the MFP according to Example 1.This is a perspective view of the external appearance of the MFP according to Example 1.This is a perspective view of the external appearance of the MFP according to Example 1.This is a block diagram of the control configuration of the MFP according to Example 1.This is a block diagram of the software control configuration of the MFP according to Example 1.This is a top view of the MFP according to Example 1.This is a top view of the MFP according to Example 1.This is a top view of the MFP according to Example 1.This is a top view of the MFP according to Example 1.This is a cross-sectional view of the scanner unit and frame of the MFP of Example 1.This is a cross-sectional view of the scanner unit and frame of the MFP of Example 1.This is a cross-sectional view of the scanner unit and frame of the MFP of Example 1.This is a cross-sectional view of the scanner unit and frame of the MFP of Example 1.This is a cross-sectional view of the scanner section of the MFP of Example 1.This is a top view of the MFP according to Example 2.This is a top view of the MFP according to Example 2.This is a top view of the MFP according to Example 3.This is a top view of the MFP according to Example 3. The embodiments for carrying out this invention will be described in detail below with reference to the drawings, based on examples. Note that the dimensions, materials, shapes, and relative arrangements of the components described in these embodiments should be appropriately modified depending on the configuration of the device to which the invention is applied and various conditions. In other words, the scope of this invention is not intended to be limited to the following embodiments. While multiple features are described in the embodiments, not all of these features are necessarily essential to the invention, and the features may be combined arbitrarily. Furthermore, in the accompanying drawings, identical or similar components are given the same reference numerals, and redundant descriptions are omitted. <Example 1> Figure 1 is an external perspective view of the MFP 100 according to Embodiment 1 of the present invention, showing the scanner cover 121 and exterior member 140 in a closed state as viewed from the front. Figure 2 is an external perspective view of the MFP 100 according to Embodiment 1 of the present invention, showing the scanner cover 121 open and the exterior member 140 closed as viewed from the front. Figures 1 and 2, and the subsequent figures, show the configuration of the MFP 100 in a typical installation state, where it is placed on a horizontal surface. Specifically, the X-Y-Z Cartesian coordinate system shown in each figure has the X and Y directions corresponding to mutually orthogonal horizontal directions. In particular, the X direction is the width direction (left-right direction) of the MFP 100, and the Y direction is the depth direction of the MFP 100 (-Y direction is the front or front side of the device, and +Y direction is the back or rear side of the device). The Z direction corresponds to the vertical direction of the device (+Z direction is upward, -Z direction is downward), i.e., the device height direction, gravity direction, or vertical direction. The MFP 100 mainly consists of a printer unit 110, which is a recording unit (recording device) that records images onto recording material, and a scanner unit 120, which is a reading unit (reading device) that reads images from a document. The printer unit 110 is a so-called inkjet serial printer that records by ejecting ink, which is a recording liquid, onto recording material such as paper or a sheet. Note that the printer unit 110 is not limited to an inkjet type, and may be an electrophotographic recording unit, for example. The scanner unit 120 is a CCD reading type flatbed scann