BOTH SIDE COPYING SYSTEM FOR DETECTING ERROR IN COPY SHEET FEEDING

摘要

A system for maintaining job integrity in a duplex copying apparatus is disclosed wherein the number of a first set of sheets coming into a duplex tray is counted and compared for coincidence with the number of the first set of sheets leaving the tray before separator fingers are retracted to allow the following sets of sheets to drop into position to be feed out of the tray.