Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2006-08-01
2006-08-01
Chapman, Mark A. (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S110300, C430S110400, C430S137110, C430S137150, C399S262000, C399S263000, C399S350000
Reexamination Certificate
active
07083890
ABSTRACT:
A toner is used in an image forming process employing a toner recycling system and contains at least a modified polyester resin, a coloring agent, and a releasing agent. The toner has a volume-average particle diameter Dv, a number-average particle diameter Dn and a shape factor SF-1, wherein Dv is in a range from 4.0 μm to 6.0 μm, the ratio Dv/Dn of Dv to Dn is in a range from 1.00 to 1.30, and the shape factor SF-1 is in a range from 140 to 200.
REFERENCES:
patent: 6653037 (2003-11-01), Sawada et al.
patent: 6660443 (2003-12-01), Sugiyama et al.
patent: 6667141 (2003-12-01), Iwamoto et al.
patent: 6716561 (2004-04-01), Shiraishi et al.
patent: 6852462 (2005-02-01), Emoto et al.
Awamura Junichi
Emoto Shigeru
Higuchi Hiroto
Honda Takahiro
Kondo Maiko
Chapman Mark A.
Ricoh & Company, Ltd.
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