DOCUMENT HANDLER JAM DETECTION
Original Publication Date: 1981-Oct-31
Included in the Prior Art Database: 2004-Apr-02
Xerox Disclosure Journal
The document handler jam detector uses two transmissive optical sensors to detect document position. They detect proper document registration at the input station and are used for jam detection. Three jam checks are performed as a document is cycled onto the platen. A document handling system (DHS) jam occurs if (1) the document takes too much time clearing the input station; (2) the document overshoots the platen registration edge; or (3) the document is pulled out of the input station prior to the feed on cycle.