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FLAMES FIX VIA WIRE VIBRATION

IP.com Disclosure Number: IPCOM000026368D
Original Publication Date: 1991-Aug-31
Included in the Prior Art Database: 2004-Apr-05
Document File: 2 page(s) / 52K

Publishing Venue

Xerox Disclosure Journal

Abstract

A method for reducing certain copy quality defects in electrophotographic printing and copying machines is disclosed. Contamination build-up of toner and debris on a charge scorotron wire may lead to distortion and loss of the charge corona and subsequently to copy quality defects known as "tiger stripes" or "flames". The contamination build-up may be remedied by mechanical vibration of the wire. The vibration may be induced by electrically exciting the scorotron wire at one or more of its resonant frequencies. The electrical excitation may be controlled by a computer algorithm, for example, during cycle down, during power up, just before entering a power saving mode or by electrical hardware design. Regular periodic mechanical vibration of the scorotron wire eliminates contamination build-up and extends the useful life of the copy cartridge module containing the scorotron.

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XEROX DISCLOSURE JOURNAL

FLAMES FIX VIA WIRE VIBRATION
David J. Breed
Jason T. Stone

Proposed Classification
U.S. C1.355/200 Int. C1. G03g 15/00

A method for reducing certain copy quality defects in electrophotographic printing and copying machines is disclosed. Contamination build-up of toner and debris on a charge scorotron wire may lead to distortion and loss of the charge corona and subsequently to copy quality defects known as "tiger stripes" or "flames". The contamination build-up may be remedied by mechanical vibration of the wire. The vibration may be induced by electrically exciting the scorotron wire at one or more of its resonant frequencies. The electrical excitation may be controlled by a computer algorithm, for example, during cycle down, during power up, just before entering a power saving mode or by electrical hardware design. Regular periodic mechanical vibration of the scorotron wire eliminates contamination build-up and extends the useful life of the copy cartridge module containing the scorotron.

XEROX DISCLOSURE JOURNAL - VoI. 16, No. 4 July/August 1991 243

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244 XEROX DISCLOSURE JOURNAL - Vol. 16, No. 4 July/August 1991

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