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Corona Arc Generator for Use With an Electrophotographic Printer or Copier

IP.com Disclosure Number: IPCOM000047933D
Original Publication Date: 1983-Dec-01
Included in the Prior Art Database: 2005-Feb-08
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Pitterle, WJ: AUTHOR [+2]

Abstract

The figure illustrates a corona arc generator which can be utilized to simulate electrical noise conditions within high voltage corona components of an electrophotographic printer or copier. This enables determination of error patterns within such equipment caused by the electrical noise, whereby service costs associated with such noise can be reduced. In the apparatus of the figure, point A is connected to the high voltage line as close as possible to the corona unit. With the machine energized, contact B is moved past contact A. By such movement, it is possible to cause an arc to occur between points A and B, with the intensity of the arc being controlled by current limiter R. The arc can be sensed internally to the high voltage power supply by setting an arc latch which can then be sensed by a microcode routine.

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Corona Arc Generator for Use With an Electrophotographic Printer or Copier

The figure illustrates a corona arc generator which can be utilized to simulate electrical noise conditions within high voltage corona components of an electrophotographic printer or copier. This enables determination of error patterns within such equipment caused by the electrical noise, whereby service costs associated with such noise can be reduced. In the apparatus of the figure, point A is connected to the high voltage line as close as possible to the corona unit. With the machine energized, contact B is moved past contact A.

By such movement, it is possible to cause an arc to occur between points A and B, with the intensity of the arc being controlled by current limiter R. The arc can be sensed internally to the high voltage power supply by setting an arc latch which can then be sensed by a microcode routine. This basically simulates drum movement past the corona unit. The object of such simulation is to cause an arc which is strong enough to be detected, yet not sufficient to drain the power supply or cause machine shutdown. The simulated arc can be utilized to collect data on machines during design and enable understanding of the error patterns early in the design cycle, thereby enabling reduced service costs.

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