Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1995-06-20
1996-08-20
Martin, Roland
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430108, 430111, G03G 9107
Patent
active
055477950
ABSTRACT:
A magnetic carrier for a developer for use in electrophotographic recording, comprising a ferromagnetic particle of an average particle size of 100 .mu.m or less, a ratio (T/a) of the minimum outer size (T) and the maximum outer size (a) of the magnetic carrier being 0.02-0.5. Since the magnetic carrier has a large specific surface area, a toner can be sufficiently charged by the magnetic toner. Therefore, a high quality printed image free from defect such as fogging, spreadness, carrier adhesion, streak, etc. can be obtained even in continuous printing of a long period of time.
REFERENCES:
patent: 2965573 (1960-12-01), Gundlach
patent: 4996126 (1991-02-01), Anno et al.
patent: 5093201 (1992-03-01), Ohtani et al.
Asanae Masumi
Ochiai Masahisa
Saitoh Tsutomu
Hitachi Metals Ltd.
Martin Roland
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