Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2006-03-14
2006-03-14
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...
C430S111400, C430S120400
Reexamination Certificate
active
07011920
ABSTRACT:
A non-magnetic mono-component toner of the present invention is composed of a coloring powder at least containing a binder resin, coloring agent and wax and at least one kind of external additive having a mean particle diameter of 0.04 μm or greater, wherein the relationship between the Vickers hardness of the above coloring powder and the mean particle diameter of the external additives satisfies the predetermined expression. Thereby, the present invention is effective in preventing the external additive particles from sinking into the toner surface as well as from falling off from the surface when the toner particles are stressed in the developing unit. As a result, it is possible to provide stable image quality free from degradation of toner charge performance and toner supply performance even for long-term use.
REFERENCES:
patent: 3983045 (1976-09-01), Jugle et al.
patent: 2754539 (1998-05-01), None
patent: 2759532 (1998-05-01), None
patent: 3127323 (2001-01-01), None
Patent Abstracts of Japan 64-010269, Jan. 13, 1989.
Patent Abstracts of Japan 03-177848, Jul. 1, 1991.
Patent Abstracts of Japan 06-089044, Mar. 29, 1994.
Ishida Toshihisa
Kida Kouji
Kojima Yoshimi
Korematsu Kazuya
Nagai Takafumi
Chapman Mark A.
Nixon & Vanderhye P.C.
Sharp Kabushiki Kaisha
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