ELECTROPHOTOGRAPHIC PHOTOSENSITIVE DRUM HAVING TWISTED...

Details ELECTROPHOTOGRAPHIC PHOTOSENSITIVE DRUM HAVING TWISTED... ELECTROPHOTOGRAPHIC PHOTOSENSITIVE DRUM HAVING TWISTED...

2005-04-26

2005-04-26

Lee, Susan (Department: 2852)

Electrophotography

Image formation

Photoconductive member

C399S111000

Reexamination Certificate

active

06885838

ABSTRACT:
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus. The apparatus includes a motor, a driving rotatable member for transmitting a rotational driving force having a twisted hole formed at a central portion and having a non-circular cross-section with corner portions, and a transfer roller. The process cartridge includes an electrophotographic photosensitive drum, process components, a twisted projection of non-circular cross-section provided at a longitudinal end of the drum that is engageable with the twisted hole at three positions to receive the driving force from the main assembly, and a gear for transmitting the driving force received by the twisted projection to the transfer roller when the process cartridge is mounted to the main assembly.

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