Photoconductive toners which include photoconductive pigment par

Details Photoconductive toners which include photoconductive pigment par Photoconductive toners which include photoconductive pigment par

1974-02-12

1976-09-28

Klein, David

Gas separation: apparatus

Magnetic separating means

96 16, 252 621P, 252501, G03G 504

Patent

active

039829383

ABSTRACT:
Improved toner particles each comprising an intimate mixture of a photoconductive pigment and an insulating binder capable of transporting charge carriers when the charge carriers are injected therein from the pigment, the proportion of the total volume of the pigment in the toner particle being 2 to 30 volume percent of the toner particle and the insulating binder being substantially transparent to the light in the region of the spectrum to which the pigment is sensitive. The toner particle may have therein a core or cores of a material which is substantially transparent to the light in the spectral-sensitive region of the pigment. The toner particles have improved surface durability and can be used repeatedly.

REFERENCES:
patent: 2986521 (1961-05-01), Wielicki
patent: 3060020 (1962-10-01), Greig
patent: 3140175 (1964-07-01), Kaprelian
patent: 3143508 (1964-08-01), Kaprelian
patent: 3764315 (1973-10-01), Mort et al.
patent: 3775103 (1973-11-01), Sadamatsu et al.
patent: 3820984 (1974-06-01), Gundlach
patent: 3825421 (1974-07-01), Tamai

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