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LAYERED HIGH VOLTAGE ALTERNATING CURRENT COROTRON POWER DISTRIBUTION SYSTEM

IP.com Disclosure Number: IPCOM000027201D
Original Publication Date: 1995-Oct-31
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 50K

Publishing Venue

Xerox Disclosure Journal

Abstract

In some copier/printers, corotron power supply distribution systems short to other components, radiate strong electric fields that interfere with other systems, and waste power. A solution is to employ a one piece shielded part tying high voltage into all corotrons from a power supply. The shielded part is dielectric filled to exclude air/moisture, and its surface has a coating that is conductive to ground. By eliminating the ionization medium (air) around the corotron lead wires the line loss decreases, thereby enabling the High Voltage Alternating Current power supply to operate at a lower voltage and not impact copy quality. In addition, by lowering the High Voltage Alternating Current voltage, the system is less susceptible to arcing corotrons, and therefore, less transient noise spikes which enables the meeting of stringent emissions specifications.

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XEROX DISCLOSURE JOURNAL

LAYERED HIGH VOLTAGE Proposed Classification ALTERNATING CURRENT CORO- U.S. C1.250/324 TRON POWER DISTRIBUTION
SYSTEM
J. E.
Patrick Gagnon

Int. C1. G02b 26/10

In some copier/printers, corotron power supply distribution systems short to other components, radiate strong electric fields that interfere with other systems, and waste power. A solution is to employ a one piece shielded part tying high voltage into all corotrons from a power supply. The shielded part is dielectric filled to exclude air/moisture, and its surface has a coating that is conductive to ground. By eliminating the ionization medium (air) around the corotron lead wires the line loss decreases, thereby enabling the High Voltage Alternating Current power supply to operate at a lower voltage and not impact copy quality. In addition, by lowering the High Voltage Alternating Current voltage, the system is less susceptible to arcing corotrons, and therefore, less transient noise spikes which enables the meeting of stringent emissions specifications.

I I I I I I I 1 I I I I

XEROX DISCLOSURE JOURNAL Vol. 20 No. 5 Septernber/October 1995 391

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392 XEROX DISCLOSURE JOURNAL Vol. 20 No. 5 September/October 1995

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