472.2.7 Paper End Detection Mechanism (See Figure )(1) Front/ Rear form end detection mechanism (when the form with sprocket holes is used)The form prevents the paper end lever tip end from coming into the hole on the sheet feedercover rib and the microswitch is set to the ON state. When the form runs out, the paper endlever comes into the hole on the sheet feeder cover rib and the bottom of the paper end leverleaves the microswitch to turn it off for form end detection. Both front and rear tractor detectsthe paper end at 12.7mm.(2) Front tractorSheet of paperTractor coverContact lever Paper end detection microswitchTractor with a paperTractor without paperFigure 2.33 Paper end detection mechnism (front tractor)
