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USE OF HOLLOW CYLINDER TO TERMINATE THE WIRE OF A DICOROTRON CORONODE

IP.com Disclosure Number: IPCOM000024202D
Original Publication Date: 1979-Dec-31
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 50K

Publishing Venue

Xerox Disclosure Journal

Abstract

Dicorotron devices have been used to perform negative charging functions in an electrophotographic environment. A corona wire is coated with a dielectric material and excited by an AC voltage capacitively coupled to the air across the dielectric sheaths. A net DC current to the surface to be charged is obtained by applying a DC bias to the surrounding corona shield.

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CEROX DISCLOSURE JOURNAL

Proposed Classification
U.S. Cl. 355/3 CH Int. C1. G03g 15/00

Robert J. Mrzywka

Dicorotron devices have been used to perform negative charging functions in an electrophotographic environment. A corona wire is coated with a dielectric material and excited by an AC voltage capacitively coupled to the air across the dielectric sheaths. A net DC current to the surface to be charged is obtained by applying a DC bias to the surrounding corona shield.

The corona wire must be tensioned in an appropriate end block design when being mounted in place. A common termination method, crimping a split brass ball over the wire ends, presents difficult orientation and feeding problems for the assembly operation. An improved design is shown in the figure. The dicorotron wire 2 is terminated in a hollow cylinder 3. A hollow cylinder is easier and less costly to orientate.

Volume 4 Number 6 November/December 1979 775

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     XEROX DISCLOSURE JOURNAL Volume 4 Number 6 November/December 1979

776

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