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DEVELOPMENT SYSTEM AUGER

IP.com Disclosure Number: IPCOM000024405D
Original Publication Date: 1980-Aug-31
Included in the Prior Art Database: 2004-Apr-02
Document File: 1 page(s) / 37K

Publishing Venue

Xerox Disclosure Journal

Abstract

In the development system of an electrophotographic printing machine, augers are frequently used to transport toner particles across the developer housing. If high torques are required due to the partial blocking of the toner along the auger, the auger spring may fail. At present, high carbon spring steel is used for the auger. Heat treatment of this material results in distortion and nonuniformity. In order to prevent failure of the auger, another material may be employed. The use of a precipitation hardness steel, such as 17-7ph, resolves the heat treatment problem. Since relatively low temperatures are required to go from the annealed state to the hardened state, distortion and nonuniformity can be minimized.

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XEROX DISCLOSURE JOURNAL

DEVELOPMENT SYSTEM AUGER Proposed Classification
J. Beachner U.S. Cl. 118/644 Int. C1. B05c 11/00

In the development system of an electrophotographic printing machine, augers are frequently used to transport toner particles across the developer housing. If high torques are required due to the partial blocking of the toner along the auger, the auger spring may fail. At present, high carbon spring steel is used for the auger. Heat treatment of this material results in distortion and nonuniformity. In order to prevent failure of the auger, another material may be employed. The use of a precipitation hardness steel, such as 17-7ph, resolves the heat treatment problem. Since relatively low temperatures are required to go from the annealed state to the hardened state, distortion and nonuniformity can be minimized.

Volume 5 Number 4 July/August 1980 353

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