Liquid electrophotographic developer comprising oppositely charg

Details Liquid electrophotographic developer comprising oppositely charg Liquid electrophotographic developer comprising oppositely charg

1988-05-23

1989-05-16

Welsh, J. David

Radiation imagery chemistry: process, composition, or product th

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

Post imaging process, finishing, or perfecting composition...

430115, 430106, 430 45, 430904, G03G 912

Patent

active

048309451

ABSTRACT:
Disclosed is an electrophotographic liquid developer composition comprising a liquid medium, first toner particles charged to one polarity and comprising a first dye and polymeric cores to which steric stabilizer polymers have been attached, second toner particles charged to a polarity opposite to that of the first toner particles and comprising a second dye of a different color than the first dye and polymeric cores to which steric stabilizer polymers have been attached, 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), Melcalfe 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), Seung et al.

Affiliated with

Also associated with

Rating

Liquid electrophotographic developer comprising oppositely charg does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Liquid electrophotographic developer comprising oppositely charg, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid electrophotographic developer comprising oppositely charg will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2322009