Process cartridge and electrophotographic image forming apparatu

Details Process cartridge and electrophotographic image forming apparatu Process cartridge and electrophotographic image forming apparatu

1997-12-02

1999-08-24

Grimley, Arthur T.

Electrophotography

Having particular structure

Modular or displaceable

G03G 1500

Patent

active

059435291

ABSTRACT:
A process cartridge removably mounted to a main body of an electrophotographic image forming apparatus includes an electrophotographic photosensitive member, a process member for acting on the electrophotographic photosensitive member, and a cartridge frame. The cartridge further includes a first projection guided by the main body when the process cartridge is mounted on or dismounted from the main body, the first projection protruding from one end and being coaxial with the electrophotographic photosensitive member, a guiding second projection projecting from an opposite surface and being coaxial with the photosensitive member, a third guiding projection located substantially above the first projection when the process cartridge is mounted on the main body, and a fourth guiding projection located substantially above the second projection in a state in which the process cartridge is mounted on the main body. The distance between the first projection and the third projection is different from the distance between the second projection and the fourth projection.

REFERENCES:
patent: 5543891 (1996-08-01), Setoriyama
patent: 5585889 (1996-12-01), Shishido et al.
patent: 5638161 (1997-06-01), Numagami et al.
patent: 5708922 (1998-01-01), Azuma et al.
patent: 5745823 (1998-04-01), Goto et al.
patent: 5749027 (1998-05-01), Ikemoto et al.
patent: 5768661 (1998-06-01), Coffey et al.

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