Selenium electrophotographic photoreceptor

Details Selenium electrophotographic photoreceptor Selenium electrophotographic photoreceptor

1990-01-30

1991-12-24

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 66, 430 85, G03G 514

Patent

active

050751883

ABSTRACT:
The present invention provides a seleniumn electrophotographic photoreceptor comprising a laminate of a conductive base, a carrier transportaion layer consisting of amorphous selenium or an amorphous Se-Te alloy, a carrier generation layer consisting of an amorphous Se-Te alloy containing 20 to 50 wt % of Te, and an overcoat layer composed of two layers consisting of Se-As alloys having different arsenic concentrations and different thickenesses. In one embodiment of the invention, the lower overcoat layer contains 2-10% by weight arsenic while the upper overcoat layer contains 10-30% by weight arsenic. In another embodiment of the invention, the thickness of the upper overcoat layer is greater than that of the lower overcoat layer but not more than 8 .mu.m.

REFERENCES:
patent: 4255505 (1981-03-01), Hanada et al.
patent: 4770965 (1988-09-01), Fender et al.
patent: 4891290 (1990-01-01), Narita

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