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PREVENT DEVELOPER HOUSING SHORT CIRCUITS

IP.com Disclosure Number: IPCOM000023681D
Original Publication Date: 1978-Oct-31
Included in the Prior Art Database: 2004-Mar-31

Publishing Venue

Xerox Disclosure Journal

Abstract

In an electrophotographic printing machine, the developer housing is electrically biased to a suitable potential higher than the background voltage on the photoconductive drum. Generally, the toner particles are made from a heat-settable, thermo-plasticmaterial with the carrier granules being made from a conductive material, Occasionally, the conductive carrier granules will short circuit the developer housing, In order to obviate this problem, it is desirable to interpose a relay in series with the voltage source electrically biasing the developer housing. The relay is activated when the devel-oper housing is in the inoperative mode,