Process cartridge and electrophotographic image forming...

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

2007-11-21

2010-12-21

Walsh, Ryan D (Department: 2852)

Electrophotography

Machine operation

Electrical connection

C399S111000, C399S113000, C399S167000

Reexamination Certificate

active

07856192

ABSTRACT:
A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus including a movable member movable from an outside of the main assembly of the apparatus to an inside thereof while carrying the cartridge. The cartridge includes a drum, charging and developing rollers, rotatably connected first and second frames supporting different rollers, drum and developing roller driving force receiving portions, first and second portions-to-be-supported, on one and the other ends of the first frame, first and second portions-to-be-positioned, on one and the other ends of the first frame positioned to first and second main assembly side positioning portions during a lowering movement of the movable member toward a transfer belt, charging and developing bias contacts exposed at the other end, and a portion-to-be-urged, on the first frame upper surface for receiving an elastic force to position the process cartridge relative to the main assembly.

REFERENCES:
patent: 5950047 (1999-09-01), Miyabe et al.
patent: 6708011 (2004-03-01), Nomura et al.
patent: 6944415 (2005-09-01), Nomura
patent: 2005/0078978 (2005-04-01), Suzuki et al.
patent: 1 621 942 (2006-02-01), None
patent: 2003-15378 (2003-01-01), None
Chinese Office Action dated May 12, 2010, in Application No. 200780023955.7, and English-language translation thereof.

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