Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1995-08-28
1997-04-08
Goodrow, John
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430122, G03G 9083
Patent
active
056186479
ABSTRACT:
A magnetic toner has magnetic toner particles containing a binder resin and a magnetic material, and an inorganic fine powder treated with an organic compound. The magnetic toner has a volume average particle diameter D.sub.v (.mu.m) of 3 .mu.m.ltoreq.D.sub.v <6 .mu.m, a weight average particle diameter D.sub.4 (.mu.m) of 3.5 .mu.m.ltoreq.D.sub.4 <6.5 .mu.m, a percentage M.sub.r of particles with particle diameters of 5 .mu.m or smaller in number particle size distribution of the magnetic toner, of 60% by number<M.sub.r .ltoreq.90% by number, and the ratio of a percentage N.sub.r of particles with particle diameters of 3.17 .mu.m or smaller in number particle size distribution of the magnetic toner to a percentage N.sub.v of particles with particle diameters of 3.17 .mu.m or smaller in volume particle size distribution of the magnetic toner, N.sub.r /N.sub.v, of from 2.0 to 8.0.
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Goseki Yasuhide
Kukimoto Tsutomu
Nozawa Keita
Ojima Masaki
Okano Keiji
Canon Kabushiki Kaisha
Goodrow John
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