发明名称 Image forming apparatus
摘要 An image forming apparatus includes first and second toner image forming sections and a transfer unit. The first and second toner image forming sections include first and second image carriers and first and second intermediate transfer members, respectively. The color toner images are formed on the image carrier and then transferred onto the intermediate transfer member to form a composite color toner image on the intermediate transfer member. In a first mode, the first and second toner image forming sections form both the composite dark and light color toner images on the recording material. In a second mode, the second intermediate transfer member is moved out of contact with the transfer unit and the second image carrier and the second intermediate transfer member are not operated, so that only the first toner image forming section forms the composite dark color toner image on the recording material.
申请公布号 US7450894(B2) 申请公布日期 2008.11.11
申请号 US20060354638 申请日期 2006.02.15
申请人 CANON KABUSHIKI KAISHA 发明人 MATSUMOTO YASUHIRO
分类号 G03G15/01 主分类号 G03G15/01
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