发明名称 |
Method and apparatus of detecting deviation of scanning line of light beam |
摘要 |
Beam position sensors detect deviations of a light beam from target positions defined at both sides of a recording drum. Predicted total deviations of light beam from the target positions are calculated as a function of beam position signals detected by the beam position sensors. A piezoelectric element of a sub-deflector is actuated in response to the predicted total deviations. The light beam deflected by a main deflector scans the target positions on a recording medium.
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申请公布号 |
US5245181(A) |
申请公布日期 |
1993.09.14 |
申请号 |
US19920901666 |
申请日期 |
1992.06.22 |
申请人 |
DAINIPPON SCREEN MFG. CO., LTD. |
发明人 |
CHO, MASAMICHI |
分类号 |
G02B26/10;B41J2/44;H04N1/047;H04N1/113;H04N1/12 |
主分类号 |
G02B26/10 |
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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