Charging member, process cartridge, and electrophotographic...

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

2007-02-23

2011-11-22

Gray, David (Department: 2852)

Electrophotography

Image formation

Charging

C399S111000

Reexamination Certificate

active

08064803

ABSTRACT:
A charging member having a support, a conductive elastic layer formed on the support and a surface layer formed on the conductive elastic layer, wherein the surface layer contains a polysiloxane having an acrylic group and an oxyalkylene group. This provides a charging member to the surface of which toners and external additives used in the toners can not easily cling even because of repeated use over a long period of time and which therefore enables charging and image reproduction which are stable over a long period of time, even when used in the DC contact charging method; and further provides a process cartridge and an electrophotographic apparatus which have such a charging member.

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Chinese Office Action issued in the counterpart application No. 200780007043.0 dated May 17, 2010 along with English-language translation—24 pages.

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