发明名称 Image forming apparatus
摘要 There is provided an image forming apparatus, including: a image bearing member; a charging member; a developing device; a transfer member that forms a transfer portion, thereby transferring a toner image on the image bearing member, to a transfer material; a first toner charging member disposed on the lower stream side of the transfer portion and on the upper stream side of the charging member in a rotating direction of the image bearing member, thereby charging the toner on the image bearing member by applying voltage; wherein the developing device develops the electrostatic latent image and recovers the toner charged by the first toner charging member, the image forming apparatus further including: a first current detecting portion that detects a current value flowing through the first toner charging member; and a changing portion that changes a transfer condition according to the detected current value.
申请公布号 US7877033(B2) 申请公布日期 2011.01.25
申请号 US20080334780 申请日期 2008.12.15
申请人 CANON KABUSHIKI KAISHA 发明人 SHIBUYA KEN-ICHI
分类号 G03G15/16;G03G15/24 主分类号 G03G15/16
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