发明名称 Contact charging member for charging a photosensitive drum having improved durability and a method for making the same
摘要 A charging member contactable to a member to be charged to electrically charge it, the improvement residing in that a microhardness of an end region, with respect to a longitudinal direction, of the charging member is larger than that in a central region of the charging member.
申请公布号 US5576805(A) 申请公布日期 1996.11.19
申请号 US19950404912 申请日期 1995.03.16
申请人 CANON KABUSHIKI KAISHA 发明人 ISHIHARA, YUZI;MIZOE, KIYOSHI;ASHIBE, TSUNENORI
分类号 G03G15/02;G03G15/16;(IPC1-7):G03G15/02 主分类号 G03G15/02
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