Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1994-08-18
1996-03-19
Goodrow, John
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430108, G03G 9083, G03G 9107
Patent
active
055003192
ABSTRACT:
A negatively charged toner for a two-component-type magnetic developing agent, wherein a resin medium for fixing is a copolymer resin or a resin composition having anionic polar groups and contains a magnetic powder in an amount of from 0.1 to 5 parts by weight per 100 parts by weight of the resin medium, but contains no charge control agent. The toner without containing the charge control agent exhibits very excellent spent resistance.
REFERENCES:
patent: 4960669 (1990-10-01), Mori et al.
patent: 5328795 (1994-07-01), Yamashiro et al.
patent: 5382624 (1995-01-01), Hotta et al.
Funato Masatomi
Ishimaru Seijiro
Nagao Kazuya
Shimizu Yoshitake
Goodrow John
Mita Industrial Co. Ltd.
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