Abstract: Control circuitry is disclosed for operating stations in an automatic electrophotographic reproducing machine in either of two modes to make copies of different sizes. In one mode a document is held stationary while moving scanning elements move past it to form a scanned image, and in the second mode the scanning elements are held stationary while a document feeder feeds sheet documents past the scanning elements. The control circuity includes a multiplexer for gating appropriate signals to the various stations according to the mode in which the machine is operating.

Abstract: In a billing apparatus of a copier/duplicator machine, a plurality of counters are provided for recording the numbers of the copies made by different counters according to the size of the copies.

Abstract: An automatic reproducing machine having a control system for cycling out the machine. The control system includes elements for sensing the trail edge of the copy sheet and for generating signals indicative thereof. A circuit responsive to the trail edge signal is provided for cycling out and stopping the copying operation of the reproducing machine. In an alternative embodiment cycle out is responsive to both document original and copy sheet trail edge signals.