发明名称 Electrostatic charging apparatus having conductive particles with a multi-peaked size distribution
摘要 A charging apparatus is disclosed which has an object member and a charging member. The charging member has magnetic particles, provided in contact with the object member and capable of electrostatically charging the object member upon application of a voltage. The surfaces of the magnetic particles are formed of a composite which includes conductive particles and a binder resin, and the conductive particles are in a proportion of from 80% by weight to 99% by weight in total weight based on the weight of the composite. The conductive particles have a size distribution having at least two peaks or shoulders. Also, an electrophotographic apparatus having the charging member is disclosed.
申请公布号 US5930566(A) 申请公布日期 1999.07.27
申请号 US19970848288 申请日期 1997.04.29
申请人 CANON KABUSHIKI KAISHA 发明人 ISHIYAMA, HARUMI
分类号 G03G15/02;(IPC1-7):G03G15/02 主分类号 G03G15/02
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