Light beam scanning apparatus and image forming apparatus | |
INAGAWA, YUJI; TANIMOTO, KOJI; KOMIYA, KENICHI; ISHIKAWA, DAISUKE | |
2007-01-30 | |
著作权人 | KABUSHIKI KAISHA TOSHIBA |
专利号 | US7170536 |
国家 | 美国 |
文献子类 | 授权发明 |
其他题名 | Light beam scanning apparatus and image forming apparatus |
英文摘要 | A beam detection sensor detects power of a laser beam from one of a plurality of light sources for each scanning of a scanning section to provide a light power signal. A laser control circuit compares a value of the light power signal with a predetermined value, adjusts a terminal voltage of a capacitor based on a result of the comparison, controls emission power of one of the light sources in accordance with the terminal voltage of the capacitor, and executes the control once for each light source during a plurality of scanning operations. An APC correction circuit corrects a reduction in the power of a laser beam in accordance with a reduction in electric charges applied to the capacitor caused by a leakage current during the plurality of scanning operations. |
公开日期 | 2007-01-30 |
申请日期 | 2004-09-03 |
状态 | 失效 |
内容类型 | 专利 |
源URL | [http://ir.opt.ac.cn/handle/181661/33904] ![]() |
专题 | 半导体激光器专利数据库 |
作者单位 | KABUSHIKI KAISHA TOSHIBA |
推荐引用方式 GB/T 7714 | INAGAWA, YUJI,TANIMOTO, KOJI,KOMIYA, KENICHI,et al. Light beam scanning apparatus and image forming apparatus. US7170536. 2007-01-30. |
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