Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1988-10-25
1990-09-18
McCamish, Marion C.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430109, 430111, 430137, 430903, G03G 914
Patent
active
049578405
ABSTRACT:
A developer for developing electrostatic images, comprising a magnetic toner comprising a binder resin and magnetic powder, the developer containing 17-60% by number of magnetic toner particles of 5 microns or smaller, containing 1-23% by number of magnetic toner particles of 8-12.7 microns, and containing 2.0% by volume or less of magnetic toner particles of 16 microns or larger; wherein the magnetic toner has a volume-average particle size of 4-9 microns, and the magnetic toner particles of 5 microns or smaller have a particle size distribution satisfying the following formula:
REFERENCES:
patent: 4284701 (1981-08-01), Abbott et al.
patent: 4434220 (1984-02-01), Abbott et al.
patent: 4737433 (1988-04-01), Rimai et al.
patent: 4904558 (1990-02-01), Nagatsuka et al.
Patent Abstracts of Japan, vol. 7, No. 196 (P-219)(1341) Aug. 26, 1983 & JP-A-58 95748 (Hitachi) Jun. 7, 1983.
Fujiwara Masatsugu
Matsushige Naoki
Mitsuhashi Yasuo
Nakahara Toshiaki
Sakashita Kiichiro
Canon Kabushiki Kaisha
Crossan S.
McCamish Marion C.
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