Method and apparatus for forming multicolor image

Details Method and apparatus for forming multicolor image Method and apparatus for forming multicolor image

1983-02-25

1985-05-07

Grimley, A. T.

Photocopying

Including fiber optics

430 42, 430363, G03G 1301, G03G 1501

Patent

active

045154627

ABSTRACT:
The invention provides an apparatus for forming a multicolor image, comprising a photoconductive drum which comprises a conductive substrate, and a photoconductive layer and a transparent insulating layer, a first charger to perform primary charging, a first light source to expose the entire surface of the photoconductive drum, a second charger to secondarily charge the transparent insulating layer at the second polarity, a second light source to emit light, an amount of which is controlled to have two levels in accordance with first and second color image data, a first developing unit to develop the first color image, a third light source to perform a second entire-surface exposure of the photoconductive drum, and a second developing unit to develop the second color image.

REFERENCES:
patent: 4068938 (1978-01-01), Robertson
patent: 4106870 (1978-08-01), Kondo
patent: 4255505 (1981-03-01), Hanada
patent: 4281051 (1981-07-01), Sakai
patent: 4308330 (1981-12-01), Kaukeinen
patent: 4384033 (1983-05-01), Sakai
patent: 4413899 (1983-11-01), Karasawa
patent: 4422405 (1983-12-01), Kasahara

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