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SELF ADJUSTING CLEANING BRUSH AND FLICKER BAR ASSEMBLY

IP.com Disclosure Number: IPCOM000026693D
Original Publication Date: 1993-Apr-30
Included in the Prior Art Database: 2004-Apr-06
Document File: 2 page(s) / 88K

Publishing Venue

Xerox Disclosure Journal

Abstract

Brushes used to clean elements in xerographic printing machines have a tendency to bend their bristles over or have their bristles take a set as the brushes age. Bent brush bristles occur as a result of the mechanical interference between the bristles and the surface being cleaned. As a side effect, the relative position of flicker bars with respect to the cleaning brushes used in cleaning assemblies must be taken into account while being positioned because of possible bristle set. Xerographic machines with brush bristles in poor condition experience degraded levels of performance, since the brushes unsatisfactory clean machine elements that rely on a certain level of cleanliness. Degraded performance becomes more pronounced as the brush ages and is no longer able to clean xerographic elements such as photoreceptor surfaces. One solution to the problem bristle set is to place the brush close enough to the surface to be cleaned in order to insure that even with a certain amount of bristle set, an acceptable level of cleaning will occur. Unfortunately, this solution hastens bristle set as well as the premature wear of the photoreceptor surface.

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XEROX DISCLOSURE JOURNAL

SELF ADJUSTING CLEANING Proposed Classification BRUSH AND FLICKER BAR
ASSEMBLY Int. C1. G03g 21/00 Ronald E . Godlove

U.S. Cl. 355/301

Brushes used to clean elements in xerographic printing machines have a tendency to bend their bristles over or have their bristles take a set as the brushes age. Bent brush bristles occur as a result of the mechanical interference between the bristles and the surface being cleaned. As a side effect, the relative position of flicker bars with respect to the cleaning brushes used in cleaning assemblies must be taken into account while being positioned because of possible bristle set. Xerographic machines with brush bristles in poor condition experience degraded levels of performance, since the brushes unsatisfactory clean machine elements that rely on a certain level of cleanliness. Degraded performance becomes more pronounced as the brush ages and is no longer able to clean xerographic elements such as photoreceptor surfaces. One solution to the problem bristle set is to place the brush close enough to the surface to be cleaned in order to insure that even with a certain amount of bristle set, an acceptable level of cleaning will occur. Unfortunately, this solution hastens bristle set as well as the premature wear of the photoreceptor surface.

A mounted adjustable spring loaded xerographic brush cleaner and flicker bar assembly is proposed as a solution for reducing brush bristle set. In this arrangement, t...