发明名称 |
Verfahren und Vorrichtung zum Ausrichten von Bildern auf der Vorder- und Rückseite eines Papierblattes |
摘要 |
A sensing and a control system are disclosed for eliminating registration error during duplex printing in a multi-pass xerographic printing system. The system registers a common physical edge of a sheet using multiple pairs of sensors. During the first pass or simplex pass, a first set of sensors detect the leading edge of a sheet of paper, and during the second pass or duplex pass, a second set of sensors detect the trailing edge of a sheet of paper. The control system regulates the rate at which a sheet should be driven to be in timed registration with a developed image on a photoreceptor at a transfer station. Variations in sheet size due to sheet cut tolerances are eliminated by the sensing and the control system since any offset is directed towards a common physical edge when developed front and back images on a photoreceptor are registered with a sheet of paper. <IMAGE> |
申请公布号 |
DE69616707(D1) |
申请公布日期 |
2001.12.13 |
申请号 |
DE1996616707 |
申请日期 |
1996.08.27 |
申请人 |
XEROX CORP., ROCHESTER |
发明人 |
BLANCHARD, KENNETH F.;SCHENK, RICHARD C. |
分类号 |
G03G21/14;B65H7/06;B65H9/00;B65H15/00;G03G15/00;G03G15/23;(IPC1-7):G03G15/00 |
主分类号 |
G03G21/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|