Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1988-06-29
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...
430108, 430110, G03G 910, G03G 914
Patent
active
048807192
ABSTRACT:
An electrophotographic two-component system developer is described, comprising a positive charging toner and a negative charging carrier of the dispersed magnetic powder type, wherein a hydrophilic alumina particle is adhered onto the surface of said positive charging toner and a negative charging carrier has a volume average particle diameter of from 30 to 80 .mu.m. The developer provides reduced toner cloud upon development processing and provides toner images free from fog.
REFERENCES:
patent: 4600675 (1986-07-01), Iwasa et al.
patent: 4626487 (1986-12-01), Mitsuhashi et al.
patent: 4803144 (1989-02-01), Hosoi
Amagai Yoshimi
Aonuma Shigeo
Murofushi Toshiaki
Nakazawa Hiroshi
Ohya Yasuhiro
Fuji 'Xerox Co., Ltd.
Martin Roland E.
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