发明名称 |
Light scanning apparatus, image forming apparatus and computer readable recording medium |
摘要 |
A light scanning apparatus includes: a light emission unit emitting a first light beam and a second light beam; a motor; a rotary polygon mirror rotated by the motor, forming two scanning lines on a scan object at the same time; an optical sensor detecting the first light beam and the second light beam deflected by the rotary polygon mirror; a deviation measurement unit measuring a deviation amount of starting positions of the two scanning lines on the scan object based on a first detection timing at which the optical sensor detects the first light beam and a second detection timing at which the optical sensor detects the second light beam; and a motor control unit controlling rotation of the motor based on the second detection timing in a measurement non-execution period, and controls rotation of the motor without using the first detection timing in a measurement execution period.
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申请公布号 |
US8581951(B2) |
申请公布日期 |
2013.11.12 |
申请号 |
US201213361188 |
申请日期 |
2012.01.30 |
申请人 |
FUJISHIRO WATARU;SHUMIYA KAZUSHI;BROTHER KOGYO KABUSHIKI KAISHA |
发明人 |
FUJISHIRO WATARU;SHUMIYA KAZUSHI |
分类号 |
B41J2/435;B41J2/47 |
主分类号 |
B41J2/435 |
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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