Browse Prior Art Database

PHOTORECEPTOR SHIELDING

IP.com Disclosure Number: IPCOM000027014D
Original Publication Date: 1994-Dec-31
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 72K

Publishing Venue

Xerox Disclosure Journal

Abstract

In a replaceable xerographic cartridge 1 containing a flexible photoreceptor belt 2, it is necessary to shield the belt 2 from the ingress of light and abraision whilst in transit and storage. Similarly, it is also necessary to shield the photoreceptor of a non-replaceable xerographic drum.

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XEROX DISCLOSURE JOURNAL

PHOTORECEPTOR SHIELDING Proposed Classification
A.C.R. Howard U.S. C1.355/202 Int. C1. G03g 21//00

FIG. I

3

I I

6 FIG. 2

XEROX DISCLOSURE JOURNAL - Vol. 19, No. 6 NovembedDecember 1994 469

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PHOTORECEPTOR SHIELDING(C0nt'd)

In a replaceable xerographic cartridge 1 containing a flexible photoreceptor belt 2, it is necessary to shield the belt 2 from the ingress of light and abraision whilst in transit and storage. Similarly, it is also necessary to shield the photoreceptor of a non-replaceable xerographic drum.

This invention proposes that a sheet 3 of opaque material be interleaved between photoreceptor 2 and adjacent hardware (transder corotron 4, developer 5, optical path 6, charge corotron 7 and cleaner 8) to prevent damage.

The protective sheet 3 may either be removed manually, prior to cartridge installation, or by the action of the machine directly after installation.

Figure 1 shows a typical installation in which the underside of the photoreceptor 2 is protected.

Figure 2 shows a typical installation in which the photoreceptor 2 is further protected. To enable automatic removal of the protective material 3 in this instance, it would be necessary to delay the action of the cleaner mechanism 8 until the material 3 had been ejected.

470 XEROX DISCLOSURE IOURNAL - Vol. 19, No. 6 November/December 1994

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