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DIRECT LATENT IMAGING

IP.com Disclosure Number: IPCOM000022737D
Original Publication Date: 1976-Jan-31
Included in the Prior Art Database: 2004-Mar-26

Publishing Venue

Xerox Disclosure Journal

Abstract

Image bar is proposed consisting of metal fingers individu- ally connected to photoconductive elements and to resistors in a way to provide electrostatic image formation as the image bar, especially the photoconductive elements thereof, is scanned by the optical image of copy. The decrease of the resistance of the photoconductive elements under this illumination is used to produce electrostatic discharge or charge transfer onto the surface of paper or other insula- ting material being passed under the metal fingers of the array, Subsequent development of this image constitutes reproduction of the original copy. Virtually simultaneous development of the image can occur for the condition in which the electrostatic discharge from the fingers of the array fall on an insulating sheet as the sheet is passed between the fingers and a conductive roll or element that contains partially conducting ink, The field created by the electro- static charge on the insulating sheet draws ink from the re- cesses of the ink roll.