Charging member, process cartridge and electrophotographic...

Details Charging member, process cartridge and electrophotographic... Charging member, process cartridge and electrophotographic...

2005-12-22

2010-02-16

Beatty, Robert (Department: 2852)

Electrophotography

Image formation

Charging

Reexamination Certificate

active

07664434

ABSTRACT:
A charging member is provided in which a toner, an additive for use in the toner, or the like is hard to adhere to the surface even under repeated use for a long time, and hence the charging and image output are made stable for a long time even if the charging member is used in the DC contact charging method. Also provided are a process cartridge and an electrophotographic apparatus having the charging member. The charging member includes a support, a conductive elastic layer formed on the support, and a surface layer formed on the conductive elastic layer, characterized in that the surface layer contains a polysiloxane having a fluoroalkyl group and an oxyalkylene group, and a process cartridge and an electrophotographic apparatus having the charging member.

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