Image forming apparatus including a developer device engaging an

Details Image forming apparatus including a developer device engaging an Image forming apparatus including a developer device engaging an

1991-11-26

1994-11-29

Picard, Leo P.

Photocopying

Contact printing

Light boxes

355210, G03G 1506

Patent

active

053694740

ABSTRACT:
A developer device engaging and disengaging mechanism for an image forming apparatus which includes an image forming device and a developer device which develops an image formed by the image forming device. The developer device includes a first gear for driving the developer device and the image forming apparatus includes a second gear, coupled to a frame thereof, for transmitting power from a power source to the first gear. The developer device is placed in a first position where the developer device is capable of being inserted or removed from the image forming apparatus with the first gear disengaged from the second gear. In a second position the developer device is spaced apart from the image forming device by a predetermined distance when the first gear engages the second gear. The developer device is moved between the first position and the second position, so that the first gear engages the second gear when the developer device has been moved from the first position to the second position. The first gear disengages the second gear when the developer device is in the second position.

REFERENCES:
patent: 4928146 (1990-05-01), Yamada
patent: 4931834 (1990-06-01), Suga
patent: 4975746 (1990-12-01), Miyauchi et al.
patent: 4989037 (1991-01-01), Nagatsuna
patent: 5061968 (1991-10-01), Kita
patent: 5068691 (1991-11-01), Nishio et al.
patent: 5126800 (1992-06-01), Shishido et al.
patent: 5142322 (1992-08-01), Surti

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