Magnetic carrier for electrophotography

Details Magnetic carrier for electrophotography Magnetic carrier for electrophotography

1995-10-04

1997-08-05

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

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

Post imaging process, finishing, or perfecting composition...

430108, G03G 9083, G03G 9107

Patent

active

056541201

ABSTRACT:
The disclosure describes a magnetic carrier for electrophotography having a number-average particle diameter of 1 to 1000 .mu.m, and comprising ferromagnetic iron compound particles, non-magnetic metal oxide particles and a phenol-based resin as a binder resin, the total amount of said ferromagnetic iron compound particles and said non-magnetic metal oxide particles being 80 to 99 wt %, and the ratio of the number-average particle diameter of said non-magnetic metal oxide particles and the number-average particle diameter of said ferromagnetic iron compound particles being more than 1.0.

REFERENCES:
patent: 5422216 (1995-06-01), Smith et al.
patent: 5466552 (1995-11-01), Sato et al.
patent: 5500320 (1996-03-01), Saha
Patent Abstracts of Japan, vol. 13 No. 368 (P-919), 16 Aug. 1989 & JP-A-01 124868 (Minolta) 17 May 1989, abstract.
Database WPI-Section Ch, Week 9224, Derwent Publications Ltd., London, GB, Class G08, AN-92-196283 & JP-A-04 124 677 (Fuji Xerox), 24 Apr. 1992, Abstract.

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