发明名称 Density detecting apparatus which detects image density according to document size
摘要 An image processing apparatus for a copying machine with an ADF, a facsimile or a printer, has a platen for placing originals or documents thereon, an optical system for scanning the original image, an AE measurement circuit for measuring the intensity over the entire surface of the original, a document convey mechanism for feeding/ejecting the original to and from the exposure position, and a control section including a micro computer for controlling the operation sequence. An image of optimal intensity can be reproduced for any type of original including an original having both light and dark portions.
申请公布号 US4662738(A) 申请公布日期 1987.05.05
申请号 US19840628573 申请日期 1984.07.06
申请人 CANON KABUSHIKI KAISHA 发明人 KASUYA, YUKIO
分类号 G03B27/72;G03B27/62;G03G15/00;G03G15/04;G03G21/00;(IPC1-7):G03G15/00 主分类号 G03B27/72
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