Color image forming apparatus having developing devices arranged

Details Color image forming apparatus having developing devices arranged Color image forming apparatus having developing devices arranged

1997-11-12

2000-05-30

Pendegrass, Joan

Electrophotography

Having particular structure

Modular or displaceable

399113, 347118, 347152, G03G 1500, G03G 2118

Patent

active

060700319

ABSTRACT:
A color image forming apparatus includes: a rotary image forming body; a plurality of charging units provided along the image forming body for charging the image forming body; a plurality of exposure units each provided inside the image forming body for imagewise exposing the image forming body to form a latent image; a plurality of developing units each storing therein colored developer different from each other, provided along the image forming body, for developing the latent image formed on the image forming body to form a colored toner image different from each other. After a plurality of different colored toner images are superimposed on the image forming body through successively repeating of charging by the charging unit, imagewise exposing by the exposure unit and developing by the developing unit to form a colored toner image during one rotation of the image forming body, the superimposed toner images are collectively transferred onto a transfer member. The apparatus further includes a process cartridge integrally having the plurality of charging units, the image forming body having therein the plurality of exposure units and the plurality of developing units, wherein the plurality of developing units are detachably attachable to the process cartridge.

REFERENCES:
patent: 4203386 (1980-05-01), Blochl et al.
patent: 4583832 (1986-04-01), Kasamura et al.
patent: 5541722 (1996-07-01), Ikeda et al.
patent: 5608498 (1997-03-01), Nagase et al.
patent: 5615002 (1997-03-01), Haneda et al.

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