Dual-color copier

Details Dual-color copier Dual-color copier

1984-05-21

1986-10-07

Grimley, Arthur T.

Photocopying

Including fiber optics

355 4, G03G 1500

Patent

active

046156070

ABSTRACT:
A dual-color electrophotographic copier includes a first photosensitive drum having a first layer comprised of a photoconductive material sensitive to light of a first selected color and a second layer formed on the first layer from a photoconductive material sensitive to light of a second selected color and a second photosensitive drum having a third layer comprised of a photoconductive material sensitive at least to the first selected color. A light image from the same original may be applied to the first and second drums simultaneously to form electrostatic latent images on the first and second drums. These images may be developed by differently colored toner and the toner images may be transferred to the same transfer paper superposingly to obtain a dual-color copy image.

REFERENCES:
patent: 2986466 (1961-05-01), Kaprelian
patent: 4189224 (1980-02-01), Sakai
patent: 4349268 (1982-09-01), Hirata

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