发明授权
- 专利标题: Method and apparatus for measuring image on paper registration
- 专利标题(中): 纸张登记图像测量方法及装置
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申请号: US12625252申请日: 2009-11-24
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公开(公告)号: US08520266B2公开(公告)日: 2013-08-27
- 发明人: Jack Gaynor Elliot , Rakesh Suresh Kulkarni , Martin Edward Hoover
- 申请人: Jack Gaynor Elliot , Rakesh Suresh Kulkarni , Martin Edward Hoover
- 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: H04N1/00
- IPC分类号: H04N1/00
摘要:
A method and apparatus for measuring image on paper registration including placing a test sheet of media including a plurality of test pattern marks on a platen of an image sensing device. The platen defines a scan area over which the image sensing device is capable of scanning an image. The image sensing device includes a plurality of calibration marks falling within the scan area. The method further includes operating the scanner to scan the test sheet; determining a scanned position of the calibration marks and a scanned position of the test marks resulting from the scan; comparing the scanned position of the calibration marks with reference position of the calibration marks to determine scanning error; determining an adjusted position of the test marks responsive to the scanning error; and comparing the adjusted test mark positions with predetermined reference positions to measure registration accuracy. An edge guide disposed on the platen assists in aligning the test sheet for scanning.