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DEFLECTION SHIELD FOR TONER CLOUD PARTICLES IN A MULTI-COLOR DEVELOPER HOUSING SYSTEM

IP.com Disclosure Number: IPCOM000027175D
Original Publication Date: 1995-Aug-31
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 92K

Publishing Venue

Xerox Disclosure Journal

Abstract

Proposed is a shield for use in conjunction with a multiple color developer housing system. As depicted on the accompanying figure, the shield 2 is attached to the vacuum manifold 12 on the trail edge side, in the direction 14 of rotation of the photoreceptor 10. The shield prevents toner cloud particles emanating from developer housing 4 from entering and contaminating other areas of the system, in particular, the electrostatic voltmeter (ESV) 16, and the adjacent developer housing 6 containing a different color toner.

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XEROX DISCLOSURE JOURNAL

DEFLECTION SHIELD FOR TONER CLOUD PARTICLES IN A MULTI- COLOR DEVELOPER HOUSING

Proposed Classification
U.S. C1.355/260 Int. C1. G03g 15/06

SYSTEM

John J. Monello

10

XEROX DISCLOSURE JOURNAL - Vol. 20, NO. 4 JuIy/AUgUst 1995 327

8

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DEFLECTION SHIELD FOR TONER CLOUD PARTICLES IN A MULTI-COLOR DEVELOPER HOUSING SYSTEM (Cont'd)

Proposed is a shield for use in conjunction with a multiple color developer housing system. As depicted on the accompanying figure, the shield 2 is attached to the vacuum manifold 12 on the trail edge side, in the direction 14 of rotation of the photoreceptor 10. The shield prevents toner cloud particles emanating from developer housing 4 from entering and contaminating other areas of the system, in particular, the electrostatic voltmeter (ESV) 16, and the adjacent developer housing 6 containing a different color toner.

In order to function effectively, the top of vacuum manifold 8 must be separated from the photoreceptor 10 a minimum distance, so that air may sufficiently circulate in the area of the developer housing 4 and photoreceptor 10 to draw air and toner cloud particles therethrough. To preserve this spacing, some toner cloud particles escape the suction of the manifold 12. These escaped toner particles contaminate the ESV probe 16 and its internal sensor, thereby potentially causing the probe to fail. Furthermore, toner particles entering an...