Tri-level xerographic two-color forms printer with slide attachm

Details Tri-level xerographic two-color forms printer with slide attachm Tri-level xerographic two-color forms printer with slide attachm

1990-04-04

1991-07-09

McCamish, Marion E.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

To produce color reproduction

430 42, 430 54, G03G 1301, G03G 1300

Patent

active

050305310

ABSTRACT:
Highlight color imaging apparatus wherein tri-level images are created by using a transparency with optical densities suitable for forming a bi-level image having relatively high and intermediate voltage levels. A modulated light source is then employed to form a third voltage level on the imaging surface by reducing the intermediate voltage level to a relatively low residual voltage level.

REFERENCES:
patent: 4078929 (1978-03-01), Gundlach
patent: 4167324 (1979-09-01), Wu
patent: 4385822 (1983-05-01), Kanbe
patent: 4774546 (1988-09-01), Corona et al.
patent: 4920024 (1990-04-01), Williams
Junzo Nakajima et al, POSI-Overlay Process for a copier-Printer, IAS Meeting 1980 pp. 1123-1127, .COPYRGT.1980 IEEE.

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