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DEVELOPMENT ARRANGEMENT

IP.com Disclosure Number: IPCOM000023539D
Original Publication Date: 1978-Feb-28
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 278K

Publishing Venue

Xerox Disclosure Journal

Abstract

A development arrangement for developing latent electrostatic images formed on a photosensitive imaging member 2. The arrangement includes a plurality of magnetic brushes 3-5 formed conventionally of rotatable non-magnetic sleeves 6-8 with which are located magnetic field defining means (not shown) . Each magnetic brush is supplied with fresh developer material from a developer supply sump 11 via individual developer transport tubes 12-14. A plurality of developer return tubes 15-17 serve to transport the denuded developer to a toner developer blending station 20 at which the spent developer is replenished with toner and transported via a tube 21 to the common developer supply sump 11. Independent feed to each magnetic brush unit prevents downstream rolls from becoming toner poor in relation to upstream rolls, a common problem in developer systems in which developer is passed from roll to roll.

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~EROXDISCLOSURE JOURNAL

DEVELOPMENT ARRANGEMENT
ProposedFrederick W. Hudson Classification

U.S. Cl. 118/657
mt. Cl. G03g 15/09

2f~

A development arrangement for developing latent electrostatic
images formed on a photosensitive imaging member 2. The
arrangement includes a plurality of magnetic brushes 3-5
formed conventionally of rotatable non-magnetic sleeves 6-8
with which are located magnetic field defining means (not
shown) . Each magnetic brush is supplied with fresh developer
material from a developer supply sump 11 via individual
developer transport tubes 12-14. A plurality of developer
return tubes 15-17 serve to transport the denuded developer to
a toner developer blending station 20 at which the spent
developer is replenished with toner and transported via a tube
21 to the common developer supply sump 11. Independent feed
to each magnetic brush unit prevents downstream rolls from
becoming toner poor in relation to upstream rolls, a common
problem in developer systems in which developer is passed from
roll to roll.

Volume 3 Number 1 January/February 1978 25

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                   XEROX DISCLOSURE JOURNAL
26 volume 3 Number 1 January/February 1978

[This page contains 1 picture or other non-text object]