# US 2021/0243318 A1 · Image reading apparatus and image forming apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0243318 A1 - Document ID: US20210243318A1 - Status: Published application - Kind: A1 - Application number: 17/145,428 - Filed: 2021-01-11 - Published: 2021-08-05 - Earliest claimed: 2020-02-04 - Assignees: Canon Kabushiki Kaisha - Applicants: Canon Kabushiki Kaisha - Inventors: Akira Matsumoto - Web page: https://patentgrep.com/patent/US20210243318A1 ## CPC - H04N 1/00602: {Feed rollers} - H04N 1/00588: {to the scanning position (H04N1/00572, H04N1/00594 take precedence)} - H04N 1/1215: {Feeding using one or more cylindrical platens or rollers in the immediate vicinity of the main scanning line} - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract An image reading apparatus includes a rotatable feeding member, an image portion, a feeding guide, a first driven rolling member, and a second driven rolling member. The first driven rolling member and a second driven rolling member provided downstream of the first driven rolling member with respect to a sheet feeding direction are provided in overlapping directions as seen in an axial direction of the rotatable feeding member and are provided in non-overlapping directions as seen in the sheet feeding direction. ## Claims ### Claim 1 An image reading apparatus comprising: a rotatable feeding member configured to feed a sheet; reading unit configured to read, at a reading position, an image on the sheet fed by said rotatable feeding member; a feeding guide provided between said rotatable feeding member and the reading position with respect to a feeding direction of the sheet and configured to define an inside of a curved feeding passage as seen in an axial direction of said rotatable feeding member; a first driven rolling member projecting from said feeding guide and rotatable by contact with the sheet fed by said rotatable feeding member; and a second driven rolling member projecting from said feeding guide and including a rotation center provided downstream of a rotation center of said first driven rolling member with respect to the feeding direction, wherein said second driven rolling member is rotatable by contact with the sheet fed by said rotatable feeding member, wherein said first driven rolling member and said second driven rolling member are provided in overlapping directions as seen in the axial direction and are provided in non-overlapping directions as seen in the feeding direction. ### Claim 2 (depends on 1) An image reading apparatus according to claim 1, wherein said first driven rolling member is provided on a first shaft parallel to the axial direction, and said second driven rolling member is provided on a second shaft parallel to the axial direction and downstream of said first shaft with respect to the feeding direction. ### Claim 3 (depends on 2) An image reading apparatus according to claim 2, wherein said first driven rolling member comprises a plurality of said first driven rolling members provided on said first shaft, and said second driven rolling member comprises a plurality of said second driven rolling members provided on said second shaft, and wherein said first driven rolling members and said second driven rolling members are provided in non-overlapping directions as seen in the feeding direction. ### Claim 4 (depends on 3) An image reading apparatus according to claim 3, wherein said first driven rolling members and said second driven rolling members are alternately provided with respect to the axial direction. ### Claim 5 (depends on 1) An image forming apparatus according to claim 1, wherein said first driven rolling member and said second driven rolling member are provided at positions where an outer peripheral line of said first driven rolling member and outer peripheral line of said second driven rolling member cross each other, as seen in the axial direction. ### Claim 6 (depends on 1) An image reading apparatus according to claim 1, wherein said driven rolling member is constituted by a plurality of rollers rotating in contact with the sheet with predetermined intervals, wherein said first driven rolling member is provided at a non-overlapping position with said rollers as seen in the feeding direction, and wherein said second driven rolling member is provided at an overlapping position with said rotatable feeding member with respect to the axial direction as seen in the feeding direction. ### Claim 7 (depends on 1) An image reading apparatus according to claim 1, wherein said rotatable feeding member, said feeding guide, said first driven rolling member and said second driven rolling member are provided upstream of said reading unit with respect to the feeding direction. ### Claim 8 (depends on 1) An image reading apparatus according to claim 1, wherein said rotatable feeding member, said feeding guide, said first driven rolling member and said second driven rolling member are provided downstream of said reading unit with respect to the feeding direction. ### Claim 9 (depends on 1) An image reading apparatus according to claim 1, wherein said rotatable feeding member is a first rotatable feeding member provided on a side upstream of the reading position with respect to the feeding direction, wherein said feeding guide is a first feeding guide provided on a side upstream of the reading position with respect to the feeding direction, wherein said image reading apparatus further comprises: a second driven rolling member provided on a side downstream of the reading position with respect to the feeding direction, a second feeding guide provided on a side downstream of the reading position with respect to the feeding direction, a third driven rolling member projecting from said second feeding guide and including a rotation center provided on a third shaft parallel to the axial direction, wherein said third driven rolling member is rotatable by contact with the sheet fed by said second rotatable feeding member, and a fourth driven rolling member projecting from said second feeding guide and including a rotation center provided on a fourth shaft parallel to the axial direction and positioned downstream of said third shaft with respect to the feeding direction, wherein said fourth driven rolling member is rotatable by contact with the sheet fed by said second rotatable feeding member, and wherein said third driven rolling member and said fourth driven rolling member are provided at different positions from each other as seen in the axial direction and are provided in non-overlapping directions as seen in the feeding direction. ### Claim 10 (depends on 9) An image reading apparatus according to claim 9, wherein said third driven rolling member comprises a plurality of said third driven rolling members provided on said third shaft, and said fourth driven rolling member comprises a plurality of said fourth driven rolling members provided on fourth second shaft, and wherein said third driven rolling members and said fourth driven rolling members are provided in non-overlapping directions as seen in the feeding direction. ### Claim 11 (depends on 10) An image reading apparatus according to claim 10, wherein said third driven rolling members and said fourth driven rolling members are alternately provided with respect to the axial direction. ### Claim 12 (depends on 9) An image forming apparatus according to claim 9, wherein said fourth driven rolling member is provided at a position where an outer peripheral line of said third driven rolling member and an outer peripheral line of said fourth driven rolling member cross each other with respect to the feeding direction as seen in the axial direction. ### Claim 13 (depends on 9) An image reading apparatus according to claim 9, wherein said first driven rolling member is constituted by a plurality of rollers rotating in contact with the sheet with first intervals, wherein said second rotatable feeding member is constituted by a plurality of second rollers rotating in contact with the sheet with second intervals, wherein said third driven rolling member is provided at an overlapping position with said first rollers and said second rollers as seen in the feeding direction, and wherein said fourth driven rolling member is provided at a non-overlapping position with said first rollers and said second rollers as seen in the feeding direction. ### Claim 14 (depends on 9) An image reading apparatus according to claim 9, wherein a peripheral speed of said second rotatable feeding member is set at a value faster than a peripheral speed of said first rotatable feeding member, and wherein said first to fourth driven rolling members are rotated by contact of the sheet, fed by said first and second rotatable feeding members, with said first to fourth driven rolling members. ### Claim 15 (depends on 1) An image reading apparatus according to claim 1, wherein said reading unit includes a first reading unit configured to read an image on one surface of the sheet and a second reading unit configured to read an image on the other surface, opposite from said one surface, of the sheet. ### Claim 16 (depends on 1) An image forming apparatus comprising: an image reading apparatus according to claim 1; and an image forming portion configured to form an image, read by said image reading apparatus, on a recording material.