发明名称 |
Image forming method and apparatus with automatic skew control |
摘要 |
Disclosed are an image forming method for checking pickup of a sheet on which an image is to be formed before correcting skewing of the sheet, and an image forming apparatus. This method comprises a first step of permitting a pickup roller to pick up a sheet from a sheet retaining unit and causing the leading edge of the sheet to abut against resist rollers; a second step of permitting a detecting mechanism to detect that the sheet has been picked up by the pickup roller; a third step of rotating the pickup roller by a predetermined amount according to the detection of the detecting mechanism; a fourth step of driving the resist rollers to feed the sheet and driving an image forming mechanism for forming an image on the sheet; and a fifth step of permitting the image forming mechanism to form an image on the fed sheet. The apparatus comprises a sheet retaining unit for retaining sheets; a pickup roller for picking up a sheet from the sheet retaining unit; resist rollers against which the leading edge of the sheet abuts; an image forming mechanism for forming an image on a sheet fed by the resist rollers; a detecting mechanism for detecting that the sheet has been picked up by the pickup roller; and a controller for rotating the pickup roller, then rotating the pickup roller by a predetermined amount according to a sheet detection output of the detecting mechanism, then stopping rotating the pickup roller, and then rotating the resist rollers.
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申请公布号 |
US5418604(A) |
申请公布日期 |
1995.05.23 |
申请号 |
US19930103789 |
申请日期 |
1993.08.10 |
申请人 |
FUJITSU LIMITED |
发明人 |
NAGAKURA, MASANAO;UCHIMURA, HIROJI;HAMADA, YASUNORI;HAYASHIDA, NOBUYUKI;INAGAKI, HARUHISA;HOUKI, YOJI |
分类号 |
G03G15/00;(IPC1-7):G03G21/00 |
主分类号 |
G03G15/00 |
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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