发明名称 ELECTROSTATIC CHARGING MEMBER, ELECTROSTATIC CHARGING DEVICE, AND IMAGE FORMING APPARATUS
摘要 PROBLEM TO BE SOLVED: To provide an electrostatic charging member which performs stable electrostatic charge with excellent uniformity of electrostatic charge even after lapse of time, an electrostatic charging device, and an image forming apparatus improving the life of a body to be electrostatically charged. SOLUTION: The electrostatic charging member (31) contains electrostatic charge accelerating particles (311) dispersedly inside and slidingly rubs the body (21) to be electrostatically charged at a speed difference. The shape of the member (31) can be any among roller, belt, web and blade shapes. The member (31) is preferably provided with a cleaning member (39). The exposed area rate of the particles (311) exposed on the electric field surface of the member (31) is so regulated as to be greater than the exposed area rate of electrostatic charge holding particles (211) exposed on the surface of the body (21). Also, a lubricative material is incorporated into either of the member (31) or the body (21). COPYRIGHT: (C)2004,JPO
申请公布号 JP2004020844(A) 申请公布日期 2004.01.22
申请号 JP20020174718 申请日期 2002.06.14
申请人 RICOH CO LTD 发明人 NAKAZATO YASUFUMI;TOKUMASU TAKAHIKO;SUGIURA KENJI;MATSUURA ATSUKA
分类号 G03G15/02;(IPC1-7):G03G15/02 主分类号 G03G15/02
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