Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1980-03-05
1981-09-01
Martin, Jr., Roland E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430 57, 430 60, 430 63, 430 67, G03G 5082, G03G 514
Patent
active
042872790
ABSTRACT:
This invention is generally directed to inorganic overcoated photoresponsive devices comprised of a substrate, a layer of hole injecting material capable of injecting holes into a layer on its surface, this layer being comprised of trigonal selenium, a hole transport layer in operative contact with the hole injecting layer, this layer being comprised of a halogen doped selenium arsenic alloy, wherein the percentage by weight of selenium present is from about 99.5 percent to about 99.9 percent, the percentage by weight of arsenic present is from about 0.1 percent to about 0.5 percent, and the halogen is present in an amount of from about 10 parts per million, to about 200 parts per million; a charge generating layer overcoated on the hole transport layer, comprised of an inorganic photoconductive material; and a layer of insulating organic resin overlaying the charge generating layer. This device is useful in an electrophotographic imaging system using in a preferred embodiment a double charging sequence, that is, negative charging, followed by positive charging.
REFERENCES:
patent: 3041166 (1962-06-01), Bandeen
patent: 3355289 (1967-11-01), Hall et al.
patent: 3635705 (1972-01-01), Ciuffini
patent: 3655377 (1972-04-01), Sechak
patent: 4050935 (1977-09-01), Limburg et al.
patent: 4202937 (1980-05-01), Fukuda et al.
Brown George A.
Pinsler Heinz W.
Relyea Lloyd A.
Scharfe Merlin E.
Martin Jr. Roland E.
Palazzo E. O.
Xerox Corporation
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