Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1985-12-26
1987-05-05
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...
252 6256, G03G 910, C04B 3526
Patent
active
046632620
ABSTRACT:
A noval carrier powder for electrophotographic developers is provided. The carrier powder comprises spherical magnetite particles having a wustite (FeO) content of less than 10% by weight, a particle diameter of 30-200 .mu.m and a surface porosity of less than 20%.
REFERENCES:
patent: 4265995 (1981-05-01), Mammino
patent: 4287287 (1981-09-01), Bolte et al.
Engstrom Ulf
Katayama Mitsuhiro
Kohno Toshihiko
Larssen Svenn-Erik
Oka Kazuyoshi
Hoganas AB
Kanto Denka Kogyo Co. Ltd.
Martin Roland E.
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