Process cartridge and image forming apparatus using same
AssigneeCanon Kabushiki Kaisha
InventorsHideki Tada, Hisayoshi Kojima, Masanori Yamagata, Toshiki Nagase, Akira Ito, Mitsugu Inomata
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Abstract
A process cartridge integrally supports an electrophotographic photosensitive member and a plurality of developing units and removable with respect to an image forming apparatus. The driving force from the image forming apparatus can be selectively transmitted to any one of the developing units and the transmission of the driving force to all of the developing units is blocked during the non-image forming process. Thus, the operability of dismounting of the cartridge from the image forming apparatus is improved.
Claims11
An image forming apparatus, comprising:
- mounting means for mounting a cartridge onto the image forming apparatus, said cartridge including at least one developing means including a moving member for supplying developing agent to an image bearing body, and a first driving force transmitting member for transmitting a driving force to said moving member;
- a second driving force transmitting member for transmitting driving force to said first driving force transmitting member, said second driving force transmitting member being free of said first driving force transmitting member when said cartridge is initially mounted onto said image forming apparatus and being adapted to subsequently contact said first driving force transmitting member;
- and
- a driving source for driving said second driving force transmitting member.
An image forming apparatus according to claim 10, wherein each of said plurality of developing means includes a developing agent of a different color.
Dependencies are inferred from the claim text.