INTEGRATED OPTICAL CONTROL CIRCUIT FOR XEROGRAPHIC ENGINES
Original Publication Date: 1980-Oct-31
Included in the Prior Art Database: 2004-Apr-02
Xerox Disclosure Journal
In order to control the operation of future copier-duplicators, many sensors will be provided to monitor operations and provide signals to devices which initiate the requisite control actions. For electrical sensors to operate reliably in the electrically "noisytf environment of a xerographic engine, extensive signal con-ditioning and redundancy must be provided in the multiplexer and computer. The problems and cost inherent in such systems can be avoided by the use of optical sensors and light-conducting fibers in place of electrical sensors and electrically conductive wires.