Four color toner single pass color printing system using two tri

Details Four color toner single pass color printing system using two tri Four color toner single pass color printing system using two tri

1992-08-03

1993-06-29

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

346157, G03G 1501

Patent

active

052239063

ABSTRACT:
A four color toner single pass color printing system consists generally of a raster output scanner (ROS) optical system and two tri-level xerographic units in tandem. Only two of the three subtractive primary colors of cyan, magenta and yellow are available for toner dot upon toner dot to combine to produce the additive primary colors. The resulting color printing system would be able to produce pixels of black and white and five of the six primary colors, with pixel next to pixel printing producing all but the strongest saturation of the sixth primary color, an additive primary color. The color printing system uses either four color toners or a black toner and three color toners.

REFERENCES:
patent: 4731634 (1988-03-01), Stark
patent: 5121171 (1992-06-01), Knapp

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