Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2005-02-04
2009-06-23
RoDee, Christopher (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S108110, C430S108200, C430S108600, C430S108700, C430S106200, C430S106300
Reexamination Certificate
active
07550241
ABSTRACT:
The present invention relates to a magnetic mono-component toner composition with positive charge comprising i) a magnetic toner particle containing a charge control agent with positive charge; ii) a hydrophobic silica with negative charge; iii) a fluorinated organic fine powder; and iv) a metal oxide fine powder containing 20 to 80 wt % of tin oxide. The toner has an advantageous in the extended life of the drum, reduction of the background contamination, and improvement of long-term reliability, and thus can be used effectively for image forming apparatus.
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Lee Chang-Soon
Lee Hyeung-Jin
Lee Won-Sup
Park Joo-Yong
LG Chem Ltd.
McKenna Long & Aldridge LLP
RoDee Christopher
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