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Making Electrophotographic Plates

IP.com Disclosure Number: IPCOM000075861D
Original Publication Date: 1971-Nov-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Shattuck, MD: AUTHOR [+2]

Abstract

This is a process for preparing electrophotographic plates. An electrically conductive substrate, such as electrically conductive paper is sprayed simultaneously with a resin binder suspended in carrier liquid, and with the precursors of a photoconductive compound from a single-spray applicator.

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Making Electrophotographic Plates

This is a process for preparing electrophotographic plates. An electrically conductive substrate, such as electrically conductive paper is sprayed simultaneously with a resin binder suspended in carrier liquid, and with the precursors of a photoconductive compound from a single-spray applicator.

The photoconductive compounds include oxide, sulfide and selenide of zinc, and the sulfide and selenide of cadmium. Aqueous solution of precursors are sprayed on to the conductive surface to form the photoconductive compounds in situ. When the substrate temperature is maintained below about 275 degrees F the photoconductive compounds formed are not crystalline but are instead amorphous, which leads to the possibility of obtaining high resolution in electrophotographic copying, without loss of sensitivity.

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