发明名称 |
Light beam scanning apparatus |
摘要 |
A light beam position detecting device detects the passage positions of a plurality of light beams for scanning the surface of a photosensitive drum. The light beam position detecting device has a sensor pattern for generating an output which is continuously changed in a wide range with a variation in the passage position of the light beam in a sub-scanning direction perpendicular to a main scanning direction of the light beam. The sensor pattern precisely detects the relative scanning position of the light beam in a wide range. The passage positions of the plurality of light beams for scanning the surface of the photosensitive drum are controlled to a preset position based on the output of the sensor pattern.
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申请公布号 |
US2002105574(A1) |
申请公布日期 |
2002.08.08 |
申请号 |
US20020067868 |
申请日期 |
2002.02.08 |
申请人 |
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发明人 |
TANIMOTO KOJI;KOMIYA KENICHI;SAKAKIBARA JUN;IDE NAOAKI;ICHIYANAGI TOSHIMITSU |
分类号 |
H04N1/113;B41J2/44;G02B26/10;H04N1/047;H04N1/191;(IPC1-7):B41J2/435 |
主分类号 |
H04N1/113 |
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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