Highlight color imaging apparatus

Details Highlight color imaging apparatus Highlight color imaging apparatus

1988-01-04

1989-09-19

Grimley, A. T.

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Contact printing

Light boxes

355326, 430125, G03G 2100

Patent

active

048686085

ABSTRACT:
Tri-Level Highlight color imaging apparatus and cleaner apparatus therefor. Improved cleaning of a charge retentive surface is accomplished through matching the triboelectric properties of the positive and negative toners and their associated carriers as well as the carrier used in the magnetic brush cleaner apparatus. The carrier in the cleaner upon interaction with the two toners causes them to charge to the same polarity. The carrier used in the cleaner is identical to the one use in the positive developer. The carrier of the negative developer was chosen so that the toner mixed therewith charged negatively in the developer housing.

REFERENCES:
patent: 3457900 (1969-07-01), Drexler
patent: 4078929 (1978-03-01), Gundlach
patent: 4397264 (1983-08-01), Hatch
patent: 4430402 (1984-02-01), Tsushima
patent: 4533236 (1985-08-01), Garsin
patent: 4771314 (1988-09-01), Parker et al.

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