Browse Prior Art Database

PHOTORECEPTOR PROTECTIVE SHIELD

IP.com Disclosure Number: IPCOM000027055D
Original Publication Date: 1995-Feb-28
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 59K

Publishing Venue

Xerox Disclosure Journal

Abstract

In reprographic and printing systems employing active matrix photoreceptors with customer replaceable units (CRUs), for example, the Xerox@ 5028 copier, damage to the photoreceptor in the CRU can result in the need to replace the entire CRU. The protective shield proposed herein would be employed in the same manner as well-known shutters or similar mechanisms that are used to isolate the critical components while the machine is being serviced.

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XEROX DISCLOSURE JOURNAL

PHOTORECEPTOR PROTECTIVE Proposed Classification SHIELD U.S. C1.355/211 Robert E. Pugh, Jr. Int. C1. G03g 05/00

In reprographic and printing systems employing active matrix photoreceptors with customer replaceable units (CRUs), for example, the Xerox@ 5028 copier, damage to the photoreceptor in the CRU can result in the need to replace the entire CRU. The protective shield proposed herein would be employed in the same manner as well-known shutters or similar mechanisms that are used to isolate the critical components while the machine is being serviced.

Accordingly, the present disclosure proposes the use of a movable barrier member adapted to be interposed between an electrophotographic imaging member and a copy sheet transport means in an imaging apparatus. The movable barrier, which is made from a non-abrading, flexible fabric, preferably Teflon-based, will prevent contact with the photoreceptor during service or paper jam clearance. Operation of the movable barrier is initiated upon opening the imaging apparatus. For example, in the clamshell design employed in the Xerox@ 5028 copier the bamer will cover the exposed imaging member to prevent damage from tools, rings, watches, and other foreign objects when the top portion of the machine is pivoted upward.

XEROX DISCLOSURE JOURNAL - Vol. 20, No. 1 January/February 1995 39

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