发明名称 |
RASTER OUTPUT SCANNER WITH PROCESS DIRECTION SPOT POSITION CONTROL |
摘要 |
Compensation for process direction photoreceptor motion in a Raster Output Scan system is provided by moving the cylinder lens located between the laser source and a rotating spot scanning mechanism, e.g., a polygon. The cylinder lens is moved in the process direction in response to error signals generated by a SOS detector and timing marks on the photoreceptor drum surface, or an encoder on the drum shaft. The lens movement is obtained by sending motion error signals to a piezo-electric actuator which increases in length to impart the desired motion to the cylinder lens.
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申请公布号 |
CA2067887(C) |
申请公布日期 |
1997.10.07 |
申请号 |
CA19922067887 |
申请日期 |
1992.05.01 |
申请人 |
XEROX CORPORATION |
发明人 |
APPEL, JAMES J.;OSSMAN, KENNETH R. |
分类号 |
B41J2/44;G02B26/12;G06K15/12;H04N1/047;H04N1/113;H04N1/12;(IPC1-7):B41J2/47;G02B26/10 |
主分类号 |
B41J2/44 |
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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