发明名称 |
Sheet conveyance device, image reading apparatus and image forming apparatus using sheet conveyance device |
摘要 |
A sheet conveyance device that is capable of correcting skew of a sheet like an index sheet without complicating a use setting and without increasing a cost significantly. A plurality of conveyance units are arranged in a direction intersecting a sheet conveyance direction to convey a sheet. At least three detection sensors are arranged in a direction intersecting the conveyance direction at an upstream side from the conveyance units to detect the sheet. A skew amount computation unit measures a time difference between detection timings of a front end of the sheet by two of the at least three detection sensors except the detection sensor that detects first, and computes a front-end skew amount according to the time difference. A speed change unit makes the conveyance speeds of the conveyance units be different according to the front-end skew amount so as to correct the skew of the sheet. |
申请公布号 |
US8599451(B2) |
申请公布日期 |
2013.12.03 |
申请号 |
US201213369132 |
申请日期 |
2012.02.08 |
申请人 |
SAITO HIROSHI;CANON KABUSHIKI KAISHA |
发明人 |
SAITO HIROSHI |
分类号 |
H04N1/04 |
主分类号 |
H04N1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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