The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 1982
Filed:
Mar. 02, 1981
George A Brown, Penfield, NY (US);
Lloyd A Relyea, Webster, NY (US);
Merlin E Scharfe, Penfield, NY (US);
Heinz W Pinsler, Penfield, NY (US);
Xerox Corporation, Stamford, CT (US);
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.