Developing device

Details Developing device Developing device

1989-03-31

1990-09-18

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355326, 355327, G03G 1501, G03G 1506

Patent

active

049581910

ABSTRACT:
A disconnecting mechanism or a driving force switching mechanism provided in a developing device functions so as to transmit a driving force from a driving source to a developer stirring mechanism only correlatively with a movement of each developing unit from a developer supply location adjacent to an image support member to a developer non-supply position away from the image support member. The disconnecting mechanism or the driving force switching mechanism functions so as to transmit a driving force from the driving source both to the developer stirring mechanism and a developing roll correlatively with the movement of each developing unit from the developer non-supply position to the developer supply location.

REFERENCES:
patent: 4713673 (1987-12-01), Kessoku
patent: 4728987 (1988-03-01), Diola et al.
patent: 4743938 (1988-05-01), Ohno et al.
patent: 4841329 (1989-06-01), Kasamura et al.

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