| 摘要 |
<p>PROBLEM TO BE SOLVED: To surely prevent an image formed on a paper sheet from dislocating by letting differ the start timing of resister rollers at each inlet route to the resister rollers feeding a paper sheet to an image support. SOLUTION: When a first paper feed part 30-fourth paper feed part 33 of a paper feed part 4 are selected, the respective carry rollers 38a-38b of a carry passage 38 and a relay roller 39 are driven to carry a paper sheet to a resister roller pair 50. The start timing of the resister roller pair 50 is set to be a delayed timing by a correcting valueαfrom the standard. The paper sheet reached on the inlet of the resister roller pair 50 is stopped with sufficient flexure, and hence entering of the extreme end of the paper sheet is sufficient so as to prevent dislocation on the upper stream side. When a manual paper feed table 41 is drawn out, the manual paper feed roller 42 and the manual reversely rotating roller of a separation paper feed part R2 are driven, the paper sheet is fed to a carry passage 51, and carried to the resister roller pair 50. In this case, the start timing of the resister roller pair 50 is set to be the standard timing.</p> |
