Methods for scheduling sheets in an imaging system having an endless duplex paper path loop are disclosed. Preferably, the duplex loop includes a single sheet inverter without a buffer tray so as to eliminate the problems associated therewith. The basic method involves consecutively inserting copy sheets...http://www.google.com/patents/US5095342?utm_source=gb-gplus-sharePatent US5095342 - Methods for sheet scheduling in an imaging system having an endless duplex paper path loop