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	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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