Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2008-11-10
2011-11-01
Le, Hoa (Department: 1721)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S110300, C430S110400
Reexamination Certificate
active
08048603
ABSTRACT:
A toner is composed of toner particles which contain at least a binder resin, a colorant, and a release agent. As to particle size distribution and particle number distribution of the toner particles, a volume average particle size of the toner particles is set to be 3.0 μm to 6.0 μm, and a content of 5.0 μm or smaller toner particles is set to be 40% by number while a content of 8.0 μm or larger toner particles is set to be less than 2% by volume. Furthermore, an amount of the release agent in toner particle surface is set to be 0.7% by weight or more and 1.8% by weight or less. And furthermore, the release agent is a petroleum-based release agent.
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Imura Yasuo
Tsubaki Yoritaka
Le Hoa
Nixon & Vanderhye P.C.
Sharp Kabushiki Kaisha
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