发明名称 Image forming apparatus featuring first and second toner images with different charging amounts
摘要 An image forming apparatus has a latent image forming portion for forming an electrostatic latent image on an image bearing member; a plurality of developing portions for developing the electrostatic latent image on the image bearing member with a developer; a primary transferring portion for transferring by sequentially superposing each developer image developed by the plurality of developing portions on an intermediate transferring member; a secondary transferring portion for collectively transferring onto a transferring material the developer images transferred by being superposed on the intermediate transferring member; and a charging portion for charging the developer images on the image bearing member; wherein the charging portion decides a charging condition in accordance with the order of transferring the developer images onto the intermediate transferring member.
申请公布号 US7062208(B2) 申请公布日期 2006.06.13
申请号 US20040990491 申请日期 2004.11.18
申请人 CANON KABUSHIKI KAISHA 发明人 TAKAYANAGI HIROKI
分类号 G03G15/16;G03G15/01 主分类号 G03G15/16
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