The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 1984
Filed:
Dec. 20, 1982
Applicant:
Inventor:
Raymond A Daniels, Thornwood, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 / ; 355 / ; 118658 ; 118652 ; 430122 ;
Abstract
Developer mix is purged from a magnetic brush developer in a xerographic copier or printer by moving the pick-up zone of a magnetic brush roller out of the throw-off zone of a magnetic transport roller. A purge door is located adjacent the throw-off zone. In a purge operation, a catching container is attached to the developer at the purge door. The purge door is opened, and the magnets of the magnetic brush roller are rotated so that the pick-up zone of the brush moves out of the throw-off zone of the transport. The developer is then driven, and the developer mix moves through the developer, out the purge opening and into the catcher.