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Apparatus for Charging Xerographic Plates

IP.com Disclosure Number: IPCOM000094043D
Original Publication Date: 1966-May-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 25K

Publishing Venue

IBM

Related People

Randolph, CT: AUTHOR [+2]

Abstract

This charging apparatus for use in xerography consists of metal roller 10 having conductive rubber coating 12 and commutator 14, in the form of a roller and screw, for making electrical contact to it. Roller 10 is loaded by spring 16 against metal roller 22. An electrical potential of about 1500 to 2000 volts is applied between roller 10 and 22.

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Apparatus for Charging Xerographic Plates

This charging apparatus for use in xerography consists of metal roller 10 having conductive rubber coating 12 and commutator 14, in the form of a roller and screw, for making electrical contact to it. Roller 10 is loaded by spring 16 against metal roller 22. An electrical potential of about 1500 to 2000 volts is applied between roller 10 and 22.

Sheet 18 of low-dielectric, semiporous material, such as ordinary paper, is placed over photoconductive film 20 on a conductive backing. This sandwich is then fed between rollers 10 ad 22 with sheet 18 in contact with roller 10.

The use of semiporous material in the sandwich results in a more efficient technique of charging a photoconductor than when nonporous material or direct contact or an air gap is provided.

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