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TONER RECLAMATION AND AIR CONTAMINANT REDUCTION IN A XEROGRAPHIC MACHINE

IP.com Disclosure Number: IPCOM000023653D
Original Publication Date: 1978-Aug-31
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 208K

Publishing Venue

Xerox Disclosure Journal

Abstract

The air mass within a xerographic machine contains a certain amount of airborne toner which has been removed from the photoreceptor surface. It is desirable to reclaim this airborne toner so that it can be used in subsequent cycles. To accomplish this reclamation, the air mass at selected loca-tions is directed at a predetermined velocity through a pipe, or series of pipes of predetermined cross-section. The pipe(s) are made of a porous material with the pores of such size and shape that the great majority of toner particles cannot pass through them. Most of the air mass, however, passes through the pores to be vented to the outside air. The toner travels along the length of the pipe to be eventually deposited into a toner sump.

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XEROX DISCLOSURE JOURNAL

TONER RECLAMATION AND AIR Proposed Classification
CONTAMINANT REDUCTION IN A U.S. Cl. 118/654
XEROGRAPHIC MACHINE Int, Cl, G03g 15/08
Ivan Rezanka

The air mass within a xerographic machine contains a certain
amount of airborne toner which has been removed from the
photoreceptor surface. It is desirable to reclaim this
airborne toner so that it can be used in subsequent cycles. To
accomplish this reclamation, the air mass at selected loca~
tions is directed at a predetermined velocity through a pipe,
or series of pipes of predetermined cross-~section. The
pipe(s) are made of a porous material with the pores of such
size and shape that the great majority of toner particles
cannot pass through them. Most of the air mass, however,
passes through the pores to be vented to the outside air. The
toner travels along the length of the pipe to be eventually
deposited into a toner sump.

The same pipe (or a separate pipe) as described above, can be
additionally treated with a catalytic substance to modify a
specific hazardous or noxious substance prior to exhaust. As
an example, ozone, which is generated during various charging
processes and which adversely affects the dark decay rate of
the photoconductor, can be reduced by coating the interior of
the pipe with a ozone reduction catalyst.

Volume 3 Number 4 July/August 1978 235

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

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