发明名称 |
Color image registration based upon belt and raster output scanner synchronization |
摘要 |
Color electrophotographic printers having latent image positions synchronized with start-of-scan signals. A laser source projects a laser beam onto a multifaceted rotating polygon that sweeps that beam in a scan line across a moving photoreceptor. A start-of-scan detector produces start-of-scan signals when the laser beam is in position to write a scan line. A belt sensor produces belt signals when indicia on the photoreceptor passes a reference position. A controller receives the belt signals and the start-of-scan and then adjusts the photoreceptors rotational velocity such that the belt signals are an integral multiple of the start-of-scan signals. To reduce the impact of drive roller eccentricities on belt signal to start-of-scan signal timing, the perimeters of photoreceptor roller elements are sub-multiples of the photoreceptor length.
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申请公布号 |
US6456309(B1) |
申请公布日期 |
2002.09.24 |
申请号 |
US20000626465 |
申请日期 |
2000.07.26 |
申请人 |
XEROX CORPORATION |
发明人 |
PANIDES ELIAS;DEJONG JOANNES N. M.;WILLIAMS LLOYD A.;CASTELLI VITTORIO;WOLF BARRY M. |
分类号 |
G03G15/00;G03G15/01;H04N1/047;H04N1/113;(IPC1-7):B41J2/385;G01D15/06 |
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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