Color copier

Details Color copier Color copier

1986-01-08

1988-05-24

Braun, Fred L.

Photocopying

Including fiber optics

G03G 1501

Patent

active

047469501

ABSTRACT:
A color copier scans an original carrying a multi-color image in one direction to form toner images of different color components thereof on respective photosensitive drums while moving a transfer sheet in the opposite direction to transfer in registration thereon the several toner images and thereby form a composite color image of the original without reversing the rotational direction of the drums. After the latent image on a given drum is developed with a toner of a respective color, the drum is quenched to remove residual charge by irradiating it with light of a color which is not significantly absorbed by the toner on the drum. The quenching light color differs as between different drums, and for a given drum the quenching light color differs from the color of the light used to form the latent image on that drum.

REFERENCES:
patent: 3647293 (1972-03-01), Queener
patent: 3764207 (1973-10-01), Obuchi
patent: 3914042 (1975-10-01), Watson
patent: 3981576 (1976-09-01), Inoue
patent: 4162843 (1979-07-01), Inoue et al.
patent: 4185910 (1980-01-01), Nomura et al.
patent: 4239370 (1980-12-01), Kurita
patent: 4429986 (1984-02-01), Abe et al.
patent: 4431301 (1984-02-01), Hashimoto et al.
patent: 4518246 (1985-05-01), Spitzner et al.

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