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DEVICE FOR MAGNETIC TONER

IP.com Disclosure Number: IPCOM000023666D
Original Publication Date: 1978-Oct-31
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 191K

Publishing Venue

Xerox Disclosure Journal

Abstract

A magnetic toner cleaning system uses a plurality of rotating magnets 2 positioned within a cylinder 4, The cylinder has a dielectric coating 6 on its outer surface. An electrostatic assist to enhance the cleaning process is achieved by applying a voltage between the inside of cylinder 4 and the base of photoreceptor 8.

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XEROX DISCLOSURE JOURNAL

DEVICE FOR MAGNETIC TONER
ProposedJoan Ewing Classification

U~S~Cl~ 118/644
Into Cl. B05b 5/02

A magnetic toner cleaning system uses a plurality of rotating
magnets 2 positioned within a cylinder 4, The cylinder has a
dielectric coating 6 on its outer surface. An electrostatic
assist to enhance the cleaning process is achieved by applying
a voltage between the inside of cylinder 4 and the base of
photoreceptor 8.

The dielectric coating 6 prevents charge injection at the
surface of cylinder 4 and ubouncebackfl of 1t,~ner. Typically,
the resistivity of the coating will be 10 ohms~cm or less
making it sufficiently uleaky~ so that the voltage across it
decays during one revolution of the cylinder.

The effectiveness of this method requires that the toner
either retain the charge induced during development or be
corona pre~charged.

Volume 3 Number 5 September/October 1978 289

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                   XEROX DISCLOSURE JOURNAL
290 Volume 3 Number 5 September/October 1978

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