Powdery developing material for electrophotographic reproduction

Details Powdery developing material for electrophotographic reproduction Powdery developing material for electrophotographic reproduction

1980-11-10

1982-12-07

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...

430107, 430111, 430903, 430122, 252 6254, G03G 914

Patent

active

043628028

ABSTRACT:
A dry developing powder composition particularly suited for use in electrophotographic reproduction which comprises a magnetic toner of 35 to 50 microns in average particle size mixed with a non-magnetic toner of 5 to 30 microns in average particle size. The amount of the magnetic toner used is within the range of 85 to 98% by weight relative to the total weight of the composition and the amount of the non-magnetic toner used is within the range of 2 to 15% by weight relative to the total weight of the composition.

REFERENCES:
patent: 3349703 (1967-10-01), Varrow et al.
patent: 3938992 (1976-02-01), Jadwin
patent: 3942979 (1976-03-01), Jones
patent: 4108786 (1978-08-01), Takayama et al.
patent: 4111823 (1978-09-01), Kobayashi et al.
patent: 4165393 (1979-08-01), Suzuki et al.

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