Browse Prior Art Database

PHTOTRECEPTOR SCRUBBER

IP.com Disclosure Number: IPCOM000023451D
Original Publication Date: 1977-Oct-31
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 353K

Publishing Venue

Xerox Disclosure Journal

Abstract

A pre-c1ean toner agglomerate dispersing foam roll 1 may be added to a 4000 or other blade cleaning copier, One way is by removing the pre-clean corotron and installing a small diam-eter, but relatively large pore foam rubber cylindrical roller 1 extending the width of the photoreceptor 2 mounted in the corotron end mounting brackets (on Teflon end bearings, or the like) This places the foam roller forcibly engaging the entire drum 2 surface width just upstream of the toner clean-ing blade 3. The foam roll I is preferably rotated only by its frictional contact with the drum 2 surface. A contact arc of approximately 1/2fl of contact between the foam roll and the drum surface has been found to be sufficient to provide the

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

PHOTORECEPTOR SCRUBBER
John G. Hively

Proposed Classification
U.S. Cl. 355/15
mt. Cl. G03g 21/00

A pre~c1ean toner agglomerate dispersing foam roll 1 may be
added to a 4000 or other blade cleaning copier, One way is by
removing the pre-clean corotron and installing a small diam-
eter, but relatively large pore foam rubber cylindrical roller
1 extending the width of the photoreceptor 2 mounted in the
corotron end mounting brackets (on Teflon end bearings, or the
like) This places the foam roller forcibly engaging the
entire drum 2 surface width just upstream of the toner clean-
ing blade 3. The foam roll I is preferably rotated only by its
frictional contact with the drum 2 surface. A contact arc of
approximately

1

/

2

4

/

3

                          fl of contact between the foam roll and the
drum surface has been found to be sufficient to provide the

Volume 2 Number 5 September/October 1977 111

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

Page 2 of 2

PHOTORECEPTOR SCRUBBER (Contvd)

desired roll rotation, compression and scrubbing action. The
foam roll does not need to be cleaned itself, and does not
remove any significant amount of toner itself. A shield or
deflector 4 can be provided to prevent toner cloud escape, and
to encourage any toner falling off of the foam roll to fall
directly into the toner removal auger associated with the
blade cleaner (not shown) . The foam roll 1 functions to re--
distribute and level (smear) untransferred toner image concen-
trations 5. This...