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POROUS CORE DETONING BRUSH

IP.com Disclosure Number: IPCOM000026162D
Original Publication Date: 1990-Aug-31
Included in the Prior Art Database: 2004-Apr-05
Document File: 2 page(s) / 115K

Publishing Venue

Xerox Disclosure Journal

Abstract

In a reprographic system, there is a need to remove toner particles from the surface of the photoreceptor. Current technology utilizes many methods for this cleaning operation. One such method is the use of a cylindrical mechanical brush having bristles extending radially outward, where the bristles of the brush are designed to remove the toner from the surface of the photoreceptor. Once the toner particles have been removed from the photoreceptor, and are now attached to the bristles of the brush, the bristles are flexed in a direction opposite the direction of rotation of the brush, by an interference means, and caused to flick the toner off the bristles. Once dislodged from the brush bristles, the toner particles are captured by a vacuum system. Problems arise with the current system after extended use. These problems are manifested in a reduction of the effective radius of the brush, due to the repeated cycling of the bristles against the interference means. The radius reduction results in a less effective flicking action for removal of the toner particles, thereby allowing accumulation of toner particles on the brush bristles. Moreover, due to the loss of radius and toner accumulation, the brush becomes less effective in removing toner from the photoreceptor.

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XEROX DISCLOSURE JOURNAL

POROUS CORE DETONING BRUSH

Proposed Samuel P: Mordenga U.S. C1.355/301 Classification

Int. C1. G03g 21/00

1

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In a reprographic system, there is a need to remove toner particles from the surface of the photoreceptor. Current technology utilizes many methods for this cleaning operation. One such method is the use of a cylindrical mechanical brush having bristles extending radially outward, where the bristles of the brush are designed to remove the toner from the surface of the photoreceptor. Once the toner particles have been removed from the photoreceptor, and are now attached to the bristles of the brush, the bristles are flexed in a direction opposite the direction of rotation of the brush, by an interference means, and caused to flick the toner off the bristles. Once dislodged from the brush bristles, the toner particles are captured by a vacuum system. Problems arise with the current system after extended use. These problems are manifested in a reduction of the effective radius of the brush, due to the repeated cycling of the bristles against the interference means. The radius reduction results in a less effective flicking action for removal of the toner particles, thereby allowing accumulation of toner particles on the brush bristles. Moreover, due to the loss of radius and toner accumulation, the brush becomes less effective in removing toner from the photoreceptor.

The present invention is suitable for use in mechanical brush xerographic cleaning systems. The figure illustrates a section of the mechanical brush of

XEROX DISCLOSURE JOURNAL - VO...