Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Process of making developer composition
Patent
1990-11-26
1992-01-21
Martin, Roland
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Process of making developer composition
430110, 430111, 430120, G03G 908
Patent
active
050827618
ABSTRACT:
A set of electrophotographic toners used for electrophotographic machines are disclosed which comprise an initial supply toner and a supplementary toner, both of which are composed of toner powder and additives adhering to the surface of the toner powder, wherein the weight ratio x of additives to toner powder in the initial supply toner is set to be greater than the weight ratio y of additives to toner powder in the supplementary toner.
REFERENCES:
patent: 4187329 (1980-02-01), Crooks
patent: 4741984 (1988-05-01), Imai et al.
patent: 4824754 (1989-04-01), Mikami
Ishida Toshihisa
Maeda Kazuya
Nakamura Kumiko
Nakamura Tadashi
Nakano Nobuhiko
Martin Roland
Sharp Kabushiki Kaisha
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