Process cartridge and electrophotographic image forming...

Details Process cartridge and electrophotographic image forming... Process cartridge and electrophotographic image forming...

2006-08-08

2006-08-08

Tran, Hoan (Department: 2852)

Electrophotography

Having particular structure

Modular or displaceable

C399S115000

Reexamination Certificate

active

07088939

ABSTRACT:
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the process cartridge includes an electrophotographic photosensitive drum, a charging member for electrically charging the electrophotographic photosensitive drum, wherein the charging member is supplied with a charging bias voltage received from the main assembly of the electrophotographic image forming apparatus when the process cartridge is mounted to the main assembly of the electrophotographic image forming apparatus; and a charging member rubbing member having an insulative property and provided contacted to the charging member along a longitudinal direction of the charging member; wherein the charging member is contacted within a longitudinally extending range to electrically charge the electrophotographic photosensitive drum, and wherein the charging member rubbing member is disposed between the electroconductive member and the charging member beyond an end of the range to prevent leakage of current from the charging member to the electroconductive member when the charging member is supplied with the charging bias.

REFERENCES:
patent: 6459869 (2002-10-01), Nittani et al.
patent: 6463234 (2002-10-01), Arimitsu et al.
patent: 6681088 (2004-01-01), Kanno et al.
patent: 2002/0057924 (2002-05-01), Ueno et al.
patent: 2003/0156855 (2003-08-01), Nittani et al.
patent: 2003/0156856 (2003-08-01), Arimitsu et al.
patent: 2003/0185587 (2003-10-01), Kawai et al.
patent: 2005/0185989 (2005-08-01), Kosuge et al.
patent: 2-272594 (1990-11-01), None
patent: 7-199604 (1995-08-01), None

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