Developing device for a color image forming apparatus

Details Developing device for a color image forming apparatus Developing device for a color image forming apparatus

1988-04-22

1990-05-22

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355326, G03G 1506, G03G 1501

Patent

active

049281445

ABSTRACT:
A developing device applicable to a color image forming apparatus includes a color developing unit and a black developing unit which are arranged around an image carrier of the apparatus. The color developing unit has at least two color developing sections and is constructed and arranged independently of the black developing unit. The end walls of at least two of the color developing sections of the color developing unit are constituted by common support members. This kind of developing device is efficient in view of the fact that the black developing unit is used more frequently than the color developing unit.

REFERENCES:
patent: 3970042 (1976-07-01), Rees
patent: 3987756 (1976-10-01), Katayama et al.
patent: 4072412 (1978-02-01), Suda et al.
patent: 4792225 (1988-12-01), Itaya
patent: 4816870 (1989-03-01), Nagayama

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