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MODIFIED DUAL BRUSH CLEANER

IP.com Disclosure Number: IPCOM000023331D
Original Publication Date: 1977-Jun-30
Included in the Prior Art Database: 2004-Mar-30
Document File: 2 page(s) / 396K

Publishing Venue

Xerox Disclosure Journal

Abstract

In conventional dual brush cleaners the first brush provides most of the cleaning action as if it was the only brush. The second brush cleans any residue which passes the first brush. This results in the first brush becoming dirty more quickly which increases its propensity to cause photoreceptor filming and poor cleaning,

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XEROX DISCLOSURE JOURNAL

MODIFIED DUAL BRUSH CLEANER Proposed Classification
Donald J. Fisher U.S. Cl. 355/15
mt. Cl, G03g 21/00

In conventional dual brush cleaners the first brush provides
most of the cleaning action as if it was the only brush. The
second brush cleans any residue which passes the first brush.
This results in the first brush becoming dirty more quickly
which increases its propensity to cause photoreceptor filming
and poor cleaning,

It is proposed to adjust the parameters of the first cleaning
brush to see the residual toner in order to reduce its clean~-
ing efficiency so that the second cleaning brush shares more
evenly in the cleaning of the photoreceptor surface, A number
of approaches can be utilized to lower the cleaning efficiency
of the first brush to obtain this result.

          1. The first brush could be set at a lesser inter~
ference than the second, This would allow the first brush to
only partially clean the toner from the drum. The second
brush would be set at the usually required interference for
good cleaning. The toner cleaning would thereby be more
evenly divided between the two brushes, and the time interval
before filming of the photoreceptor surface would be extended,

          2. The first brush could be made less efficient by
decreasing its brush to flicker bar interference,

          3. The first brush could use a flicker bar made of a
material which would make it less efficient by establishing a
less effective tribo relationship with the brush material,
For example, a typical brush cleaner using a Dynel brush
utilizes a flicker bar made of Deirin, The same brush would be
less efficient if used with a flicker bar made of steel.

          4. The flicker bar material for one brus...