Image reading device
AssigneeCanon Kabushiki Kaisha
InventorsKazuya Ijuin, Hiroo Ichihashi, Katsumi Komiyama, Yoshikazu Sano, Makoto Ogura, Osamu Hamamoto, Tetsuya Shimada
Life of this patent
Estimating the term…
Abstract
An image reading device for reading image information of an original with reading means, includes: original pressing means including a flexible sheet, a flexible member for pressing the flexible sheet, and means for pressing the flexible member.
Claims98
An image reading device including reading means for reading image information of an original, comprising:
- a conveying roller for conveying an original in a downstream direction, comprising a conveying section narrower than a reading width of said reading means;
- and
- original pressing means comprising a flexible sheet located at a position relative to said reading means upstream of an original conveying location of said conveying roller, a flexible member for pressing said flexible sheet, and means for pressing said flexible member.
An information processing apparatus comprising:
- an image reading device comprising reading means, a conveying roller for conveying an original in a downstream direction, said conveying roller being narrower than a reading width of said reading means, and original pressing means comprising a flexible sheet located at a position upstream of an original conveying location of said conveying roller, relative to said reading means, a flexible member for pressing said flexible sheet, and means for pressing said flexible member;
- an original stacking unit for supporting the original to be transported to said image reading device;
- and
- an operation panel.
An image reading device for conveying an original in substantial contact with reading means comprising light receiving means constituting a reading region, said light receiving means being disposed at least over a width of the original, illuminating said original with a light source and introducing the light reflected by said original into said reading means thereby reading image information, comprising a stationary reading portion of said reading means positioned outside of the nip of an original conveying roller and at the side of feeding of the original, and original contacting means provided at said reading portion, wherein the original conveying roller has a width more narrow than a width of said reading portion.
An information processing apparatus comprising:
- an image reading device comprising:
- a light source for illuminating an original;
- and
- reading means comprising light receiving means constituting a reading region, said light receiving means being disposed at least over a width of the original for receiving the light reflected by said original thereby reading image information;
- wherein a stationary reading portion of said reading means is positioned outside the nip of an original conveying roller and at the side of feeding of said original, original contacting means is provided at said reading portion, and the original conveying roller has a width more narrow than a width of said reading portion;
- an original stacker unit for supporting the originals to be transported to said image reading device;
- and
- an operation panel.
An image reading apparatus, wherein a light illuminates an original closely contacted to a reading section of an image reading means comprising stationary light receiving means constituting a reading region, said light receiving means being disposed at least over a width of the original, and the light reflected by said original and incident on said reading section is used to read an image on the original, said reading section being arranged at an original supplying side and outside a nip of an original conveying roller, comprising:
- original contacting means for contacting the original against said reading section;
- and
- driving power transmission means for transmitting from an external portion of said apparatus, a driving power for driving said original conveying roller, wherein the original conveying roller has a width more narrow than a width of said receiving means.
An image reading device for maintaining an original in at least substantial contact with reading means, illuminating said original with a light source and introducing the light reflected by said original into said reading means thereby reading image information, comprising a reading portion of said reading means positioned outside of the nip of an original conveying roller and at the side of feeding of the original, and original contacting means provided at said reading portion, wherein the original conveying roller has a width more narrow than a width of the reading means, and wherein said original contacting means comprises a film-shaped flexible member.
An image reading device for maintaining an original in at least substantial contact with reading means, illuminating said original with a light source and introducing the light reflected by said original into said reading means thereby reading image information, comprising a reading portion of said reading means positioned outside of the nip of an original conveying roller and at the side of feeding of the original, and original contacting means provided at said reading portion, wherein the original conveying roller has a width more narrow than a width of the reading means, and wherein said original contacting means comprises an elastic member which is elastically pressed toward said reading means.
An image reading device for maintaining an original in at least substantial contact with reading means, illuminating said original with a light source and introducing the light reflected by said original into said reading means thereby reading image information, comprising a reading portion of said reading means positioned outside of the nip of an original conveying roller and at the side of feeding of the original, and original contacting means provided at said reading portion, wherein the original conveying roller has a width more narrow than a width of the reading means, and wherein said original conveying roller is maintained in contact with a reading plane of said reading means.
An image reading device for maintaining an original in at least substantial contact with reading means, illuminating said original with a light source and introducing the light reflected by said original into said reading means thereby reading image information, comprising a reading portion of said reading means positioned outside of the nip of an original conveying roller and at the side of feeding of the original, and original contacting means provided at said reading portion, wherein the original conveying roller has a width more narrow than a width of the reading means, and wherein at least a part of said original contacting means is made white.
An image reading device for maintaining an original in at least substantial contact with reading means, illuminating said original with a light source and introducing the light reflected by said original into said reading means thereby reading image information, comprising a reading portion of said reading means positioned outside of the nip of an original conveying roller and at the side of feeding of the original, and original contacting means provided at said reading portion, wherein the original conveying roller has a width more narrow than a width of the reading means, and wherein at least an automatic original feeding unit, said reading means, said original conveying roller and said original contacting means are integrally provided in a frame to constitute a unit structure.
An image reading device for maintaining an original in at least substantial contact with reading means, illuminating said original with a light source and introducing the light reflected by said original into said reading means thereby reading image information, comprising a reading portion of said reading means positioned outside of the nip of an original conveying roller and at the side of feeding of the original, and original contacting means provided at said reading portion, wherein the original conveying roller has a width more narrow than a width of the reading means, and wherein the distance between said original conveying roller and said original contacting means is in a range of 2 to 5 mm.
An information processing apparatus comprising:
- an image reading device comprising:
- a light source for illuminating an original;
- and
- reading means for receiving the light reflected by said original thereby reading image information;
- wherein a reading portion of said reading means is positioned outside the nip of an original conveying roller and at the side of feeding of said original, original contacting means is provided at said reading portion, and the original conveying roller has a width more narrow than a width of said reading means;
- an original stacker unit for supporting the originals to be transported to said image reading device;
- an operation panel;
- and
- a recording unit comprising recording means.
An information processing apparatus comprising:
- an image reading device comprising:
- a light source for illuminating an
- original;
- and
- reading means for receiving the light reflected by said original thereby reading image information;
- wherein a reading portion of said reading means is positioned outside the nip of an original conveying roller and at the side of feeding of said original, original contacting means is provided at said reading portion, and the original conveying roller has a width more narrow than a width of said reading means;
- an original stacker unit for supporting the originals to be transported to said image reading device;
- an operation panel;
- and
- at least one of an electric terminal and a connector for electrically connecting said image reading device with a main portion of said information processing apparatus.
An information processing apparatus comprising:
- an image reading device comprising:
- a light source for illuminating an
- original;
- and
- reading means for receiving the light reflected by said original thereby reading image information;
- wherein a reading portion of said reading means is positioned outside the nip of an original conveying roller and at the side of feeding of said original, original contacting means is provided at said reading portion, and the original conveying roller has a width more narrow than a width of said reading means;
- an original stacker unit for supporting the originals to be transported to said image reading device;
- an operation panel;
- and
- detection means for detecting a mounting of said image reading device.
An information processing apparatus comprising:
- an image reading device comprising:
- a light source for illuminating an original;
- and
- reading means for receiving the light reflected by said original thereby reading image information;
- wherein a reading portion of said reading means is positioned outside the nip of an original conveying roller and at the side of feeding of said original, original contacting means is provided at said reading portion, and the original conveying roller has a width more narrow than a width of said reading means;
- an original stacker unit for supporting the originals to be transported to said image reading device;
- and
- an operation panel, wherein said image reading device comprises drive transmission means for transmitting a driving power for driving said conveying roller from said information processing apparatus.
An image reading apparatus, wherein a light illuminates an original closely contacted to a reading section of an image reading means, and the light reflected by said original and incident on said reading section is used to read an image on the original, said reading section being arranged at an original supplying side and outside a nip of an original conveying roller, comprising:
- original contacting means for contacting the original against said reading section;
- and
- driving power transmission means for transmitting from an external portion of said apparatus, a driving power for driving said original conveying roller, wherein the original conveying roller has a width more narrow than a width of said reading means, and wherein said original contacting means comprises a flexible member having a film configuration.
An image reading apparatus, wherein a light illuminates an original closely contacted to a reading section of an image reading means, and the light reflected by said original and incident on said reading section is used to read an image on the original, said reading section being arranged at an original supplying side and outside a nip of an original conveying roller, comprising:
- original contacting means for contacting the original against said reading section;
- and
- driving power transmission means for transmitting from an external portion of said apparatus, a driving power for driving said original conveying roller, wherein the original conveying roller has a width more narrow than a width of said reading means, and wherein said original contacting means comprises a flexible member flexibly pressed against said image reading means.
An image reading apparatus, wherein a light illuminates an original closely contacted to a reading section of an image reading means, and the light reflected by said original and incident on said reading section is used to read an image on the original, said reading section being arranged at an original supplying side and outside a nip of an original conveying roller, comprising:
- original contacting means for contacting the original against said reading section;
- and
- driving power transmission means for transmitting from an external portion of said apparatus, a driving power for driving said original conveying roller, wherein the original conveying roller has a width more narrow than a width of said reading means, and wherein said original conveying roller contacts the same surface as the reading section of said image reading means.
An image reading apparatus, wherein a light illuminates an original closely contacted to a reading section of an image reading means, and the light reflected by said original and incident on said reading section is used to read an image on the original, said reading section being arranged at an original supplying side and outside a nip of an original conveying roller, comprising:
- original contacting means for contacting the original against said reading section;
- and
- driving power transmission means for transmitting from an external portion of said apparatus, a driving power for driving said original conveying roller, wherein the original conveying roller has a width more narrow than a width of said reading means, and wherein at least a portion of said original contacting means is white.
An image reading apparatus, wherein a light illuminates an original closely contacted to a reading section of an image reading means, and the light reflected by said original and incident on said reading section is used to read an image on the original, said reading section being arranged at an original supplying side and outside a nip of an original conveying roller, comprising:
- original contacting means for contacting the original against said reading section;
- and
- driving power transmission means for transmitting from an external portion of said apparatus, a driving power for driving said original conveying roller, wherein the original conveying roller has a width more narrow than a width of said reading means, and wherein at least an automatic paper supplying means, said image reading means, said original conveying roller, and said original contacting means are arranged within a frame as a unit.
An image reading apparatus, wherein a light illuminates an original closely contacted to a reading section of an image reading means, and the light reflected by said original and incident on said reading section is used to read an image on the original, said reading section being arranged at an original supplying side and outside a nip of an original conveying roller, comprising:
- original contacting means for contacting the original against said reading section;
- and
- driving power transmission means for transmitting from an external portion of said apparatus, a driving power for driving said original conveying roller, wherein the original conveying roller has a width more narrow than a width of said reading means, and wherein a distance between said original conveying roller and said original contacting means is 2-5 mm.
Dependencies are inferred from the claim text.