Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2004-12-16
2008-03-25
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...
C430S108100, C430S137200
Reexamination Certificate
active
07348118
ABSTRACT:
The present invention relates to a non-magnetic mono-component toner composition and a preparation method thereof. Disclosed is a non-magnetic mono-component toner composition prepared by coating a spherical organic fine particle having a weight-average molecular weight (Mw) of 250,000-1,600,000 and an average particle size of 50-500 nm, a hydrophobic silica, and a metal oxide fine particle on a toner mother particle. The non-magnetic mono-component toner composition of the present invention ensures smooth toner supply because of good fluidity, reduces PCR contamination and deterioration of image quality, enables uniform toner layer formation on the development roller, prevents blocking at the blade of the development roller, and solves the low temperature double image problemin the non-imaging region at a low temperature. Therefore, it can be useful for an image printing apparatus adopting the non-magnetic mono-component development system in which the developing roller contacts the photoreceptor.
REFERENCES:
patent: 5185229 (1993-02-01), Sato et al.
patent: 5348829 (1994-09-01), Uchiyama et al.
patent: 5905010 (1999-05-01), Nakamura et al.
patent: 5915150 (1999-06-01), Kukimoto et al.
patent: 6203955 (2001-03-01), Mochizuki
patent: 2002/0098434 (2002-07-01), Anno et al.
patent: 0 860 746 (1998-08-01), None
patent: 0 860 746 (1999-11-01), None
patent: 1020020034064 (2002-08-01), None
patent: WO 03/087951 (2003-10-01), None
International Search Report from Korean Patent Office.
Written Opinion of the International Searching Authority.
Lee Chang-Soon
Lee Won-Sup
Lim In-Hee
Chapman Mark A.
LG Chem Ltd.
McKenna Long & Aldridge LLP
LandOfFree
Non-magnetic monocomponent toner having excellent developing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-magnetic monocomponent toner having excellent developing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-magnetic monocomponent toner having excellent developing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3978970