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Browse Prior Art Database

FOAM PUMP CLEANER

IP.com Disclosure Number: IPCOM000024542D
Original Publication Date: 1980-Dec-31
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 78K

Publishing Venue

Xerox Disclosure Journal

Abstract

In xerographic copiers and copiers/duplicators, removal of toner particles from the photoreceptor after image transfer is commonly achieved by the use of a rotating fur brush. In order to provide sufficient air flow to transport the toner thus released from the photoreceptor to either a suitable container for discard or back to the toner supply for reuse, a mechanical blower is often used. The method of this disclosure provides for both the cleaning action and air flow required for toner transport away from the photoreceptor without the need for an auxiliary m ec h an i ca 1 blower .

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Proposed Classification
U.S. CI. 355/15 Int. C1. G03g 21/00

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Volume 5 Number 6 November/December 1980 637

[This page contains 1 picture or other non-text object]

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FOAM PUMP CLEANER (Cont'd)

In xerographic copiers and copiers/duplicators, removal of toner particles from the photoreceptor after image transfer is commonly achieved by the use of a rotating fur brush. In order to provide sufficient air flow to transport the toner thus released from the photoreceptor to either a suitable container for discard or back to the toner supply for reuse, a mechanical blower is often used. The method of this disclosure provides for both the cleaning action and air flow required for toner transport away from the photoreceptor without the need for an auxiliary m ec h an i ca 1 blower .

Figure 1 shows a cylinder 1 around which is wrapped a spiral 2 consisting of foam plastic having a rectangular cross section. The cylinder rotates around shaft 3 in the direction shown by arrow 4. Figures 2 and 3 show this assembly mounted inside hollow cylinder 5, whose inner surface is contacted by the outer surface of foam spiral 2. The rotation causes air to flow along the moving channels between cylinders 1 and 5 and expels it and the toner removed from photoreceptor 8 and entrained in the flow axially in the direction shown by arrows 6. The toner thus transported may be trapped in filter 7 for discard or fed back into the toner supply (not shown) for reuse.

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