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MECHANICAL SCOOP FOR REMOVING DEVELOPER FROM A MAGNETIC BRUSH ROLL

IP.com Disclosure Number: IPCOM000026979D
Original Publication Date: 1994-Oct-31
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 59K

Publishing Venue

Xerox Disclosure Journal

Abstract

A preferred development design for a xerographic copier includes a magnetic developer roll which is loaded with toner which is then brought in contact with a latent image formed on the surface of a photoreceptor. It is sometimes necessary to remove unused toner from the magnetic roll. One way of accomplishing this is to vacuum the toner, but the toner cannot be reused due to contamination by the vacuum cleaner. The figure shows a mechanical scoop 10 which has a pickoff blade 12. The scoop is positioned with the pickoff blade contacting the surface of a magnetic roll 14. Roll 14 is rotated in the indicated direction; toner is picked off by blade 12 and drops into the receptacle body of the scoop. The toner is uncontaminated and can be reused.

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XEROX DISCLOSURE JOURNAL

MECHANICAL SCOOP FOR Proposed Classification REMOVING DEVELOPER FROM A
MAGNETIC BRUSH ROLL
Donald J. Zimmerman

U.S. C1.3551251 Int. C1. G03G 21/00

14

FIG. I

XEROX DISCLOSURE JOURNAL - Vol. 19, No. 3 September/October 1994 373

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MECHANICAL SCOOP FOR REMOVING DEVELOPER FROM A MAGNETIC BRUSH ROLL(Cont'd)

A preferred development design for a xerographic copier includes a magnetic developer roll which is loaded with toner which is then brought in contact with a latent image formed on the surface of a photoreceptor. It is sometimes necessary to remove unused toner from the magnetic roll. One way of accomplishing this is to vacuum the toner, but the toner cannot be reused due to contamination by the vacuum cleaner. The figure shows a mechanical scoop 10 which has a pickoff blade 12. The scoop is positioned with the pickoff blade contacting the surface of a magnetic roll 14. Roll 14 is rotated in the indicated direction; toner is picked off by blade 12 and drops into the receptacle body of the scoop. The toner is uncontaminated and can be reused.

374 XEROX DISCLOSURE JOURNAL - Vol. 19, No. 5 September/October 1994

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