Developer compositions having layer of a pigment on the surface

Details Developer compositions having layer of a pigment on the surface Developer compositions having layer of a pigment on the surface

1981-04-17

1983-04-12

Kittle, John E.

Radiation imagery chemistry: process, composition, or product th

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

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

430108, 430111, G03G 914, G03G 1309

Patent

active

043798241

ABSTRACT:
A developer composition capable of developing electrostatic images on dielectric surfaces is disclosed. The composition has an electrical conductivity of at least 10.sup.-6 ohm.sup.-1 centimeter.sup.-1 and utilizes a small dimension powdered material as a coating on the essentially smooth surface of individual spheroids of a toner. The composition reduces background coloration on finished copies and eliminates the need to bias the magnetic development roll.

REFERENCES:
patent: 3900412 (1975-08-01), Kosel
patent: 4142981 (1979-03-01), Bean et al.
patent: 4254203 (1981-03-01), Oka et al.
patent: 4262077 (1981-04-01), Ito

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