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 the first signal and the second signal based on {HEAD ~ the angle} that has been detected by {TAIL ~ the angle detection sensor} 
detected by
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 the first signal and the second signal based on { HEAD ~ the angle } that has been detected by { TAIL ~ the angle detection sensor }
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