Developing device drive mechanism for selecting and powering dev

Details Developing device drive mechanism for selecting and powering dev Developing device drive mechanism for selecting and powering dev

1991-09-11

1992-04-14

Grimley, Arthur T.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With means to orient coating particles

355326, G03G 1501

Patent

active

051037645

ABSTRACT:
A developing device for color copiers and the like. The developing device has a plurality of developing units, each of which has a developing roller for developing an electrostatic latent image formed on an image carrier; a developing unit switching device for moving the developing units linearly and for selecting one of the developing units to oppose the image carrier; a fixed driving source for generating a driving force to drive the developing rollers; wrapping connecting apparatus which has a wrapping member and movable rotating structure having at least one rotating member and movable together with the developing units, the wrapping connecting apparatus being for conveying the driving force to the movable rotating structure; and a plurality of clutches, each of which is provided for one developing unit and is switched to a first state wherein the clutch conveys the driving force from the movable rotating structure to the developing roller and to a second state wherein there is no conveyance.

REFERENCES:
patent: 4788574 (1988-11-01), Matsumoto et al.
patent: 4841329 (1989-06-01), Kasamura et al.
patent: 4870456 (1989-09-01), Watanabe et al.
patent: 4928146 (1990-05-01), Yamada

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