Browse Prior Art Database

BRUSH AUGER RECLAIM FILTRATION IN HYBRID BLADE/BRUSH CLEANER HOUSING

IP.com Disclosure Number: IPCOM000026837D
Original Publication Date: 1993-Dec-31
Included in the Prior Art Database: 2004-Apr-06
Document File: 6 page(s) / 279K

Publishing Venue

Xerox Disclosure Journal

Abstract

The reclaiming of toner removed from a photoreceptor after transfer by the cleaner is a desirable feature in xerographic copiers. It is generally accepted that toner cleanup is required before used toner can be recycled back to the developer housing. Large agglomerates of toner, contaminants and paper debris can cause poor development and transfer problems. Reclaimed toner may also have inherent properties which make it difficult to charge properly in the developer housing or transfer to paper easily. Heretofore, Xerographic copiers have used a brush auger device to screen out large particles from the cleaned toner before it is returned to the developer housing. The brush auger consists of a stiff fiber brush wound helically on a shaft that rides on a fine mesh screen. Small particles are forced through the screen by the brush auger. Large particles which will not fit through the screen mesh are transported across a length of the screen and are thereby separated from the smaller particles. Below the screen is a wire transport auger which transports the small toner to the developer housing. The large particles that contain a high percentage of paper debris, toner agglomerates and other contaminants are collected at the end of the screen in a waste container system. An auger brush significantly improves copy quality when compared to the copy quality obtained when the toner is not treated.

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Page 1 of 6

XEROX DISCLOSURE JOURNAL

BRUSH AUGER RECLAIM FILTRATION IN HYBRID BLADEBRUSH CLEANER HOUSING
Bruce E. Thayer

Proposed Classification

U.S. C1.355/296 Int. C1. G03g 21/00

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XEROX DISCLOSURE JOURNAL Vol18 50 6 Xovember/December 1993 601

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Page 2 of 6

BRUSH AUGER RECLAIM FILTRATION IN HYBRID BLADE- /BRUSH CLEANER HOUSING (Cont'd)

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FIG. 2

602 XEROX DISCLOSURE JOURNAL Vol18 No 6 NovembedDecember 1993

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Page 3 of 6

BRUSH AUGER RECLAIM FILTRATION IN HYBRID BLADE- /BRUSH CLEANER HOUSING (Cont'd)

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XEROX DISCLOSURE JOURNAL Vol18 No 6 November/December 1993 603

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

Page 4 of 6

BRUSH AUGER RECLAIM FILTRATION IN HYBRID BLADE- /BRUSH CLEANER HOUSING (Cont'd)

The reclaiming of toner removed from a photoreceptor after transfer by the cleaner is a desirable feature in xerographic copiers. It is generally accepted that toner cleanup is required before used toner can be recycled back to the developer housing. Large agglomerates of toner, contaminants and paper debris can cause poor development and transfer problems. Reclaimed toner may also have inherent properties which make it difficult to charge properly in the developer housing or transfer to paper easily. Heretofore, Xerographic copiers have used a brush auger device to screen out large particles from the cleaned toner before it is returned to the developer housing. The brush auger consists of a stiff fiber brush wound helically on a shaft that rides on a fine mesh screen. Small particles are forced through the screen by the brush auger. Large particles which will not fit through the screen mesh are transported across a length of the screen and are thereby separated from the smaller particles. Below the screen is a wire transport auger which transports the small toner to the developer housing. The large particles that contain a high percentage of paper debris, toner agglomerates and other contaminants are collected at the end of the screen in a waste container system. An auger brush significantly improves copy quality when compared to the copy quality obtained when the toner is not treated.

A cleaner housing containing a hybrid badehrush cleaner has a disturber brush which removes some of the input toner to the blade. Paper fibers and other contaminants are also removed which improves the cleaner reliability over that of a lone blade. The hybrid cleaner brush has much softer fibers than those on the aforementioned brush auger wherein there is no functional helix. The disturber brush rotates at a higher speed than the brush auger. All of the toner removed by the blade falls through the disturber where it is collected by a transport auger at the bottom of the housing. The transport auger removes the cleaned material from the clean...