{HEAD ~ The sheet discharge device} 1, wherein the signal transmission mechanism includes an angle detection sensor configured to detect an angle of oscillation of the pendulum mechanism, and transmits one of {TAIL ~ the first signal} and the second signal based on the angle that has been detected by the angle detection sensor 
{ HEAD ~ The sheet discharge device } 1 , wherein the signal transmission mechanism includes an angle detection sensor configured to detect an angle of oscillation of the pendulum mechanism , and transmits one of { TAIL ~ the first signal } and the second signal based on the angle that has been detected by the angle detection sensor
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