There is provided a sheet discharge unit which includes a tray which a first area and a second area, a discharge mechanism, {HEAD ~ a pendulum mechanism}, a signal transmission mechanism which transmits {TAIL ~ a first signal} and a second signal, a memory, and a controller 
There is provided a sheet discharge unit which includes a tray which a first area and a second area , a discharge mechanism , { HEAD ~ a pendulum mechanism } , a signal transmission mechanism which transmits { TAIL ~ a first signal } and a second signal , a memory , and a controller
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH