Penta-level xerographic unit

Details Penta-level xerographic unit Penta-level xerographic unit

1995-03-31

1996-10-15

Brase, Sandra L.

Photocopying

Contact printing

Light boxes

355210, 355327, G03G 1501

Patent

active

055659748

ABSTRACT:
A penta-level xerographic unit produces five exposure levels on a photoreceptor. The five exposure levels select between a subtractive and an adjacent additive primary color in both the CAD and DAD operational regimes of a xerographic process. Exposure levels intermediate between the CAD and the DAD result in white. The selection of two possible colors in CAD, or two possible colors in DAD, or the selection of no toner yields a possibility of five colors. This penta-level xerographic unit can be used for a K+3 reduced color gamut printer, typically cyan, yellow and red plus black.

REFERENCES:
patent: 5194351 (1993-03-01), Roller
patent: 5221954 (1993-06-01), Harris
patent: 5223906 (1993-06-01), Harris
patent: 5305070 (1994-04-01), Snelling

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