发明名称 |
Optical writing device, image forming apparatus, and optical writing method |
摘要 |
An optical writing device includes two or more light sources. The two or more light sources can be driven independently, are placed away from each other in a sub-scanning direction of a photoreceptor, and each distance of beams emitted from the light sources to the photoreceptor is different. A phase control unit causes a difference in phase among timing control data of two or more beams emitted from the two or more light sources by a phase change amount, which is determined on the basis of beam position of the each beam on the photoreceptor in a main scanning direction and varies depending on the beam position. The modulating unit modulates the timing control data of the respective phase-controlled beams by a same clock.
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申请公布号 |
US8477169(B2) |
申请公布日期 |
2013.07.02 |
申请号 |
US20100880563 |
申请日期 |
2010.09.13 |
申请人 |
OHIDE TOSHIO;RICOH COMPANY, LIMITED |
发明人 |
OHIDE TOSHIO |
分类号 |
B41J2/455;B41J2/435 |
主分类号 |
B41J2/455 |
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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