Processes for stabilizing developer chargability and imaging pro

Details Processes for stabilizing developer chargability and imaging pro Processes for stabilizing developer chargability and imaging pro

1996-01-16

1997-10-07

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

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

Process of making developer composition

430120, G03G 9097, G03G 1308

Patent

active

056746563

ABSTRACT:
A process for controlling A.sub.t transience comprising: providing in a developer housing, a two component developer composition comprising toner particles comprised of a resin, a pigment, a mixture of at least two charge additives, and unpreconditioned coated carrier core particles, wherein the developer is prepared by combining and thereafter blending a mixture of from 1 to about 10 parts by weight of toner particles with from about 100 parts by weight of carrier particles for about 10 minutes to about 30 minutes until an A.sub.t value of from about 60 to about 100 is attained; and forming and thereafter developing electrostatographic latent images on a photoconductive member in a two component development electrostatographic imaging apparatus with the developer composition; wherein the developer composition has an A.sub.t transient of less than about 20 relative units.

REFERENCES:
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patent: 4948686 (1990-08-01), Koch et al.
patent: 5071726 (1991-12-01), Maniar
patent: 5336579 (1994-08-01), Zimmer et al.

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