Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Reexamination Certificate
2007-07-10
2007-07-10
Chapman, Mark A. (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
C430S120400, C430S058050, C430S058850
Reexamination Certificate
active
11215328
ABSTRACT:
An electrophotographic image forming method is disclosed in which toner has a number ratio of toner particles having a shape coefficient of 1.2 to 1.6 being at least 65 percent, a variation coefficient of the shape coefficient of 4 to 16%, and a number variation coefficient in the toner number particle size distribution of 8 to 27 percent, and charge generation material used in the photoreceptor contains a mixture compound represented by Formula 1 in which n has a range of distribution and (x+y) is not more than 99% when x represents the ratio of a component having the largest content and y represents the ratio of a component having the second content,in-line-formulae description="In-line Formulae" end="lead"?X-(CTM-group)n-Y: Formula (1)in-line-formulae description="In-line Formulae" end="tail"?CTM-group is a charge transfer group; X and Y are each a hydrogen atom, a halogen atom or a mono-valent organic group; and n is an integer of from 0 to 10.
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Sakimura Tomoko
Shibata Toyoko
Chapman Mark A.
Konica Minolta Business Technologies Inc.
Lucas & Mercanti LLP
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