发明名称 TWO-COLOR ELECTROPHOTOGRAPHIC COPYING APPARATUS
摘要 PURPOSE:To reduce the diameter of a photosensitive drum and the size of an apparatus, and to avoid rubbing of an image and halo phenomenon by forming 2-color images on 2 photosensitive drums respectively separated by color. CONSTITUTION:An original placed on a platen 1 comes to mirrors 3-5, a lens 6, and a semitransmitting mirror 7, the first luminous flux illuminates the first photosensitive drum 11 from the mirrors 8, 9 to expose it to red light. The second luminous flux exposes the second photosensitive drum 12 to black. Each device for primary charging 17 secondary charging 18, exposure 19, development 20, transfer corona charging 21, cleaning 22, and destaticization 23 are installed for red and black toners around each drum 11, 12. Each color toner image formed on each drum 11, 12 is transferred to a transfer paper fed from a feed tray 26 gripped with a conveyor belt 24 at a transfer section, then fixed with fixing roller 31, 32, and ejected onto a receiving tray 33.
申请公布号 JPS59123861(A) 申请公布日期 1984.07.17
申请号 JP19820230892 申请日期 1982.12.29
申请人 RICOH KK 发明人 ISHIKAWA TOYOJI
分类号 G03G15/01;(IPC1-7):03G15/01 主分类号 G03G15/01
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