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PHOTORECEPTOR CHANGE DETECTION

IP.com Disclosure Number: IPCOM000027597D
Original Publication Date: 1998-Feb-28
Included in the Prior Art Database: 2004-Apr-08

Publishing Venue

Xerox Disclosure Journal

Abstract

In order to monitor the photoreceptor life the copier needs to know when the photoreceptor has been changed. With power turned off there is no way to know if it has been replaced. However, by monitoring the aging of the photoreceptor through its electrostatics, the current photoreceptor can be characterized and recorded. When this electrostatic signature changes it can be deduced that the photoreceptor has been changed. This allows the age of the photoreceptor to be known through a software counter without requiring the customer to reset a counter.