Electrophotographic and electrographic imaging processes

Details Electrophotographic and electrographic imaging processes Electrophotographic and electrographic imaging processes

1987-06-29

1989-02-14

Goodrow, John L.

Radiation imagery chemistry: process, composition, or product th

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

Electrophoretic imaging, process, composition, or product

430 38, G03G 1704

Patent

active

048046019

ABSTRACT:
An imaging process which comprises the formation of an image on an imaging member; subsequently developing the aforementioned image with an electrophoretic liquid developer composition comprised of an insulating suspending fluid with a resistivity of from about 10.sup.12 ohm-cm to about 10.sup.16 ohm-cm, pigment particles, a stabilizer component, and a charge control additive; and wherein the resulting ink has a resistivity of from about 10.sup.9 to about 10.sup.12 ohm-cm; applying the ink composition from an applicator roll, which roll transports the ink to the imaging member surface; and wherein the ink is attracted to the charged areas of the imaging member.

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patent: 4454833 (1984-06-01), McChesney et al.
patent: 4476210 (1984-10-01), Croucher et al.
patent: 4533611 (1985-08-01), Winkelmann et al.

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