Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2007-01-12
2009-10-27
Chapman, Mark A (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S108400, C430S110400, C430S111400, C399S252000
Reexamination Certificate
active
07608374
ABSTRACT:
A toner including a binder resin, and a release agent, wherein the following relationships are satisfied:in-line-formulae description="In-line Formulae" end="lead"?2 μm≦D4≦4 μm (a)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?0.05 μm≦Dw≦0.3 μm (b)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?Dw≦0.075×D4 (c)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?F≦−40×Dw+19 (d)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?F≦20×Dw+5 (e)in-line-formulae description="In-line Formulae" end="tail"?wherein D4is a weight-average particle diameter of the toner, Dw is an average dispersion diameter of the release agent and F is a pulverizability index of the toner.
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Chapman Mark A
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Ricoh & Company, Ltd.
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