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PIVOTABLY MOUNTED CORONA GENERATING DEVICE

IP.com Disclosure Number: IPCOM000027171D
Original Publication Date: 1995-Aug-31
Included in the Prior Art Database: 2004-Apr-07

Publishing Venue

Xerox Disclosure Journal

Abstract

It is well known that various nitrogen oxide species are produced by corona generating devices typically used in electrostatographic printing applications. Such nitrogen oxide species are generally adsorbed by solid surfaces adjacent the corona. Moreover, it has been found that the adsorption of these nitrogen oxide species can be a physically reversible process such that the adsorbed nitrogen oxide species are gradually desorbed when a machine is turned off for an extended period of idleness. When the operation of the machine is resumed, a copy quality defect, commonly called a parking deletion, is observed wherein a line image deletion of lower density image is formed across the width of the photoreceptor at that portion of its surface which was opposite the corona generating device during the period of idleness. It has been observed that, even after a relatively short period of operation, i.e. 15 minutes, followed by a period of idleness of, say, several hours, a mild line defect and a coincident image deletion may occur.