发明名称 プロセスカートリッジ
摘要 A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus includes a rotatable photosensitive drum; a charging roller for contacting and electrically charging the drum; a spacer for supporting a rotation shaft of the charging roller to space the drum from the charging roller; and an urging member for contacting the spacer to urge the charging roller toward the drum; wherein the spacer is movable between a first position for spacing the charging roller from the drum and a second position for contacting the charging roller to the drum, and an urging force of the urging member applied to the spacer is smaller when the spacer is in the second position than when the spacer is in the first position.
申请公布号 JP5812751(B2) 申请公布日期 2015.11.17
申请号 JP20110171994 申请日期 2011.08.05
申请人 キヤノン株式会社 发明人 北島 一司;工藤 俊彦
分类号 G03G21/18 主分类号 G03G21/18
代理机构 代理人
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