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PHOTORECEPTOR GROUND BRUSH PRECLEANER BLADE

IP.com Disclosure Number: IPCOM000027407D
Original Publication Date: 1996-Oct-31
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 57K

Publishing Venue

Xerox Disclosure Journal

Abstract

Toner emissions is a common problem in xerographic development systems. Toner emissions can cause process control devices to fad as they become covered with toner. One of the components that is affected by toner buildup is the photoreceptor ground brush. The ground brush rides on the photoreceptor ground strip and collects any form of debris that the photoreceptor has on it, primarily toner. Over time, the collected toner becomes fused to the ground brush fibers and inhibits its ability to effectively discharge the photoreceptor.

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XEROX DISCLOSURE JOURNAL

PHOTORECEPTOR GROUND BRUSH Proposed Classification PRECLEANER BLADE
Michael J. Palencar
Samuel P. Mordenga
Frank Porter

U. S. C1. 355/215 Int. C1. G03g 21/00

Toner emissions is a common problem in xerographic development systems. Toner emissions can cause process control devices to fad as they become covered with toner. One of the components that is affected by toner buildup is the photoreceptor ground brush. The ground brush rides on the photoreceptor ground strip and collects any form of debris that the photoreceptor has on it, primarily toner. Over time, the collected toner becomes fused to the ground brush fibers and inhibits its ability to effectively discharge the photoreceptor.

Proposed is the addition of a urethane wiper blade which serves as a precleaning device. A urethane wiper blade is attached to the bottom of the ground brush. As the photoreceptor rotates, the urethane wiper blade wipes the ground strip clean and prevents toner and other debris from collecting in the ground brush fibers. The level of toner collected by the blade is very low, thus requiring little or no maintenance. The ground brush assembly can be configured as part of a Customer Replaceable Unit (CRU) and the brush blade is expected to easily exceed projected print life of the CRU.

This concept is applicable to various photoreceptor ground brush configurations.

DPS480

XEROX DISCLOSURE JOURNAL - Vol. 21, No. 5 September/October 1996 313

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