Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1983-08-26
1985-04-30
Welsh, John D.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
355 3FU, 219216, 432 60, 432228, G03G 538
Patent
active
045144869
ABSTRACT:
In a method for the formation of images such as an electrophotographic method in which toners are used, when a heat roller is used for fixing toner images, the durability and the heat efficiency of the heat roller is improved reducing the wall thickness of the cylindrical metal of the heat roller, shortening the warming-up time, using a material having a substantial Young's modulus, and by shortening the outer diameter of the cylindrical metal, respectively.
With respect to toners specifically used for the above, stains on an image carrier are prevented by making use of a binder that is fused at a heating temperature of the heat-fixing roller and is increased in the elasticity of the toner at the same temperature or higher. Such binders may be obtained by copolymerizing a polyhydric alcohol and/or a polyhydric amine, and a polyhydric carboxylic acid.
REFERENCES:
patent: 4019024 (1977-04-01), Namiki
patent: 4234248 (1980-11-01), Beck
Gunzi Kouichi
Ito Kunio
Shirose Meizo
Takagiwa Hiroyuki
Takahashi Jiro
Konishiroku Photo Industry Co,., Ltd.
Welsh John D.
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