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ELECTROSTATIC CONTAMINATION SEAL

IP.com Disclosure Number: IPCOM000024822D
Original Publication Date: 1982-Apr-30
Included in the Prior Art Database: 2004-Apr-04

Publishing Venue

Xerox Disclosure Journal

Abstract

In a copier-duplicator using dry toner, contamination of the housing interior by egress of powder from the cleaner housing is reduced by the use of a non-contacting repulsive-field seal. The essential part of the seal is a lip of the cleaner housing positioned downstream of a cleaner blade and being a clearance fit with the photoreceptor. The lip is provided with an electroconductive face or edge which is able to be given a high charge of the same polarity as that of the toner. This charge produces an electric field tending to repel towards the interior of the cleaner housing any toner particles tending to be entrained into the radial gap between the photoreceptor and the lip.