发明名称 |
Optical scanner and image forming apparatus |
摘要 |
An optical scanner is capable of effectively correcting a difference with respect to the sub-scanning direction between the positions of optical spots for scanning photoconductor drums of a tandem type color image forming apparatus. The optical scanner includes an optical axis adjusting part. The optical axis adjusting part uses a deflecting mirror or a wedge-shaped prism to deflect the optical axis of an optical beam with respect to the sub-scanning direction. As a result, it is possible to accurately correct a resist difference among individual image forming stations and form a high-quality color image without any color displacement.
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申请公布号 |
US7532227(B2) |
申请公布日期 |
2009.05.12 |
申请号 |
US20030609577 |
申请日期 |
2003.07.01 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
NAKAJIMA TOMOHIRO;KOJIMA AKIRA;YAMASHIRO IKUKO;SUZUKI SEIZO;AMADA TAKU;HAYASHI YOSHINORI;SHIMADA KAZUYUKI |
分类号 |
B41J15/14;B41J27/00;G02B26/12;G06K15/12;H04N1/047;H04N1/113;H04N1/12;H04N1/50 |
主分类号 |
B41J15/14 |
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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