发明名称 Charging member including a conductive support and surface layer having protrusions formed on a surface thereof, a process cartridge including same for use in an image forming apparatus
摘要 A charging member is provided which can inhibit defective images due to poor charging and adhering substances from occurring even after being repeatedly used for a long time, and can inhibit deformation and defective images due to the C set, caused by a change in rotational speed accompanying such deformation even after being left standing in a stopping state for a long time. The charging member includes a conductive support and a surface layer. The surface layer includes a binder and resin particles dispersed in the binder, each resin particle having a depressed portion on its surface. Protrusions resulting from the resin particles are formed on the surface of the surface layer. The protrusions each have a depressed portion resulting from the depressed portion of the resin particle, and the surface of the resin particle is covered with the binder.
申请公布号 US7869741(B2) 申请公布日期 2011.01.11
申请号 US20100699380 申请日期 2010.02.03
申请人 CANON KABUSHIKI KAISHA 发明人 MAYUZUMI HIROSHI;TANIGUCHI TOMOHITO
分类号 G03G21/18;G03G15/02 主分类号 G03G21/18
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