发明名称 Image forming apparatus with charging member cleaning capabilities
摘要 An image forming apparatus includes an image bearing member; a charging member for contacting a peripheral surface of the image bearing member to electrically charge the peripheral surface; a first developing device for forming a first developed image on the peripheral surface of the image bearing member charged by the charging member; a second developing device for forming a second developed image on the peripheral surface, wherein a combined developed image is formed by superimposing the first developed image and the second developed image on a common transfer material, wherein when the combined image is being formed, the charging member is cleaned by transferring, by an electric field, material deposited on the charging member to a region between the first developed image and the second developed image on the peripheral surface of the image bearing member, and wherein the first developed image and the second developed image are not formed in the region.
申请公布号 US7627269(B2) 申请公布日期 2009.12.01
申请号 US20060395127 申请日期 2006.04.03
申请人 CANON KABUSHIKI KAISHA 发明人 MATSUGUMA MINORU;MATSUDA KENJI;OJIMA MASAKI;KOJIMA KATSUHIRO;MATSUMOTO HIDEKI
分类号 G03G21/00 主分类号 G03G21/00
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