Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1988-05-23
1989-11-14
Martin, Roland E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430 45, G03G 912
Patent
active
048807206
ABSTRACT:
Disclosed is an electrophotographic liquid developer composition comprising a liquid medium, first toner particles charged to one polarity and comprising a resin and a first pigment, second toner particles charged to a polarity opposite to that of the first toner particles and comprising a resin and a second pigment of a color different from that of the first pigment, and a charge director. The disclosed developer is suitable for developing electrostatic latent images in two different colors in a single development step. The latent image comprises three areas of charge; toner particles of one color are selectively attracted to one area, toner particles of the other color are selectively attracted to the second area, and the third area remains undeveloped as a background area.
REFERENCES:
patent: 3013890 (1961-12-01), Bixby
patent: 3793205 (1974-02-01), Metcalfe et al.
patent: 3850830 (1974-11-01), Fukushima et al.
patent: 4078929 (1978-03-01), Gundlach
patent: 4264185 (1981-04-01), Ohta
patent: 4312932 (1982-01-01), Hauser et al.
patent: 4476210 (1984-10-01), Croucher et al.
patent: 4500616 (1985-02-01), Haneda et al.
patent: 4524117 (1985-06-01), Maekawa et al.
patent: 4686163 (1987-08-01), Seuing et al.
Croucher Melvin D.
Drappel Stephan
Wong Raymond W.
Byorick Judith L.
Martin Roland E.
Xerox Corporation
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