发明授权
US07422211B2 Lateral and skew registration using closed loop feedback on the paper edge position
有权
在纸张边缘位置使用闭环反馈的横向和偏斜配准
- 专利标题: Lateral and skew registration using closed loop feedback on the paper edge position
- 专利标题(中): 在纸张边缘位置使用闭环反馈的横向和偏斜配准
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申请号: US11040396申请日: 2005-01-21
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公开(公告)号: US07422211B2公开(公告)日: 2008-09-09
- 发明人: Joannes N M Dejong , Lloyd A. Williams , Barry P. Mandel , Martin Krucinski
- 申请人: Joannes N M Dejong , Lloyd A. Williams , Barry P. Mandel , Martin Krucinski
- 申请人地址: US CT Norwalk
- 专利权人: Xerox Corporation
- 当前专利权人: Xerox Corporation
- 当前专利权人地址: US CT Norwalk
- 主分类号: B65H9/16
- IPC分类号: B65H9/16
摘要:
A closed loop feedback method that continuously adjusts the lateral and skew position of a sheet includes a first sensor that is used to measure lateral sheet edge position. A second sensor measures the lateral sheet edge position at a certain distance from the first sensor. Sheet skew values can thus be calculated. Lateral and skew controllers provide outputs to lateral and skew actuators, respectively, to adjust the sheet position. A different method of registering sheets laterally and in skew enables active sheet deskew without translating the sheet in the cross-process direction. A sensor carriage position is controlled to find the sheet edge after which deskew control can start. The average value of the carriage position can then be fed in a feedforward manner to move the image location to match the average paper position. This achieves good average lateral registration and active skew control at a reduced cost.
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