Process cartridge, electrophotographic image forming...

Details Process cartridge, electrophotographic image forming... Process cartridge, electrophotographic image forming...

B - Operations, Transporting

41

J

B41J 27/16 (2006.01) F16D 1/10 (2006.01) G03G 15/00 (2006.01) G03G 21/18 (2006.01)

Patent

CA 2216905

A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, wherein the main assembly includes a motor, a main assembly side gear for receiving driving force from the motor and a main assembly recess defined by twisted surface, the main assembly recess being substantially coaxial with the gear, and a main assembly projection provided in the main assembly and substantially coaxial with the gear, the process cartridge includes an electrophotographic photosensitive drum; process means actable on the photosensitive drum; and a twisted cartridge projection engageable with the twisted surfaces, the projection being provided at a longitudinal end of the photosensitive drum; a cartridge recess provided at a free end of the cartridge projection and substantially coaxial with the cartridge projection, wherein when the process cartridge is mounted to the main assembly, the main assembly projection enters the cartridge recess; wherein, when the main assembly side gear rotates with the main assembly recess and cartridge projection engaged with each other, rotational driving force is transmitted from the gear to the photosensitive drum through engagement between the main assembly recess and the cartridge projection.

Une cartouche de traitement amovible d'un ensemble principal d'un appareil de formation d'image électrophotographique, qui comprend un engrenage latéral pour recevoir la force d'entraînement d'un moteur, un renfoncement défini par des surfaces torsadées, renfoncement essentiellement coaxiale à l'engrenage et une projection de l'ensemble principal essentiellement coaxiale à l'engrenage. La cartouche de traitement est formée d'un tambour photosensible électrophotographique; de solutions de traitement agissant sur le tambour photosensible; et d'une projection torsadée s'engageant dans les surfaces torsadées; la projection se trouve à une extrémité longitudinale du tambour photosensible. Un renfoncement de cartouche a été prévu à une extrémité libre de la projection de la cartouche et est essentiellement coaxial à la projection; quand la cartouche de traitement est montée dans l'ensemble principal, la projection de l'ensemble principal pénètre dans le renfoncement de la cartouche; quand l'engrenage latéral de l'ensemble principal tourne la projection engagée dans le renfoncement, la force de rotation est transmise de l'engrenage au tambour photosensible par la fixation réalisée entre le renfoncement de l'ensemble principal et la projection de la cartouche.

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