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COLORED TONER OPTICAL DEVELOPABILITY SENSOR WITH IMPROVED SENSING LATITUDE

IP.com Disclosure Number: IPCOM000026023D
Original Publication Date: 1989-Oct-31
Included in the Prior Art Database: 2004-Apr-05

Publishing Venue

Xerox Disclosure Journal

Abstract

measurement o P the amount of unfused toner that is developed onto the One important rocess control in electrophotographic applications is the charge retentive surface. In Infrared Reflection Densitometer (IRD) sensors, such as that used, for example, in the Xerox 1065 copier, heretofore primarily for use with black toners, at a test patch exposed and developed specifically for process control purposes, a light emitting infrared diode illuminates the tonerlsurface combination, and a hotodiode is positioned to