Browse Prior Art Database

BLOCKAGE OF HIGH VOLTAGE CORONA IN COROTRONS

IP.com Disclosure Number: IPCOM000025771D
Original Publication Date: 1987-Dec-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 96K

Publishing Venue

Xerox Disclosure Journal

Abstract

In pin array corona generating devices, or corotrons, arcing or current leakage is commonly noted along the surfaces of the support members, from the coronode to the shields. This problem increases over time as conductive salts are deposited on the device, as byproducts of corona emissions. This current leakage causes inefficiency and non-uniformity in charging, as well as a potential hazard to operators. The proposal is directed to an arrangement preventing this problem.

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XEROX DISCLOSURE JOURNAL

BLOCKAGE OF HIGH VOLTAGE Proposed Classification CORONA IN COROTRONS U.S. C1.355/14CH Peter R. Pryzlock Int. C1. G03g 15/00

In pin array corona generating devices, or corotrons, arcing or current leakage is commonly noted along the surfaces of the support members, from the coronode to the shields. This problem increases over time as conductive salts are deposited on the device, as byproducts of corona emissions. This current leakage causes inefficiency and non-uniformity in charging, as well as a potential hazard to operators. The proposal is directed to an arrangement preventing this problem.

A pin array corotron for corona charging operations in an electrophotographic device is generally comprised of a sawtooth pin array coronode 10, supported in position for charging operation by first and second support members 12 and 14, which also support conductive shield members 16 and 18 on either side of

Volume 12 Number 6 November/December 1987 289

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BLOCKAGE OF HIGH VOLTAGE CORONA IN COROTRONS (Cont'd)

the corotron member, exterior to support members 12 and 14, respectively. Pin array coronode 10 is provided with a plurality of support receiving openings 20 along the length thereof for support of the coronode on the support members 22. Spacers 24 may be integrally molded on side supports 14 and 16 to maintain the position of the conductive shield members with respect to the pin...