normally open held closed limit switches both feeder not jammed limit switches 54a and 56a are held closed when the feeder operates without a paper jam upon the occurrence of a paper jam the corresponding feeder not jammed limit switch opens breaking the circuit the front manual override jog pushbuttons 60a 60c and the rear manual override jog pushbuttons 62a 62c are common dual or two circuit momentary make pushbuttons the switches are activated by depressing the button holding the contacts in a closed position and deactivated by releasing the button allowing the plunger to spring back into an open circuit position similarly the console jog pushbutton 64 and console run pushbutton 66 are common single circuit momentary make pushbuttons well known in the art also well know in the art is the contact relay coil cr1 of the present invention having two normally open contacts cr1 a and cr1 b the contact relay coil cr1 used in the circuit of the present invention has an alternating current type actuating coil now with continued reference to fig2 the initiation of a motor run condition will be described assuming that the e stop string 48 and each of the maintenance door circuits 46a 46c are in a condition reflecting that the machine is.