Photocopying – Contact printing – Light boxes
Patent
1989-11-21
1990-12-04
Moses, R. L.
Photocopying
Contact printing
Light boxes
355200, G03G 1500
Patent
active
049757440
ABSTRACT:
The improvement is in the driving mechanism and positioning mechanism between an image bearing member and a main assembly of an image forming apparatus using the image bearing member. The image bearing member has a shaft receiving portion adjacent the center thereof to receive a positioning shaft of the main assembly when the image bearing member is mounted in said main assembly. By the receiving engagement, the image bearing member is correctly positioned with respect to the main assembly. The image bearing member is also provided with a driving force receiving portion where the image bearing member is engaged with a driving member of the main assembly so that the image bearing member can be driven from the main assembly. In such an arrangement, the shaft receiving portion and the driving force receiving portion are radially overlapped, at least in part, with each other as seen from a rotational axis of the image bearing member.
REFERENCES:
patent: 4345834 (1982-08-01), Kimura et al.
patent: 4427883 (1985-07-01), Kamiyama
patent: 4449809 (1985-05-01), Tamura
patent: 4530588 (1985-07-01), Kimura et al.
patent: 4561763 (1985-12-01), Basch
patent: 4591258 (1986-05-01), Nishino et al.
patent: 4714337 (1987-12-01), Nishino et al.
Ebata Tokihide
Onoda Shigeyoshi
Canon Kabushiki Kaisha
Moses R. L.
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