Toner for a two-component-type magnetic developing agent having

Details Toner for a two-component-type magnetic developing agent having Toner for a two-component-type magnetic developing agent having

1994-11-18

1996-05-28

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

430904, G03G 9083

Patent

active

055210457

ABSTRACT:
A toner in which a small amount of magnetic powder is disposed in a resin medium for fixing which comprises a cationic polar group-containing copolymer resin or a resin composition. A distinguished feature resides in that the toner does not contain a charge control agent. The toner is positively charged and exhibits very good spent resistance. The toner further exhibits favorable electrophotographic properties such as transfer efficiency despite there is contained no charge control agent.

REFERENCES:
patent: 5213933 (1993-05-01), Osaki et al.
patent: 5246809 (1993-09-01), Funato et al.
patent: 5364720 (1994-11-01), Nakazawa et al.

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