Sheet discharge device, method for detecting sheet loading, computer readable medium storing sheet loading detection program, and {HEAD ~ image forming apparatus} including {TAIL ~ sheet discharge device} 
Sheet discharge device , method for detecting sheet loading , computer readable medium storing sheet loading detection program , and { HEAD ~ image forming apparatus } including { TAIL ~ sheet discharge device }
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 REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL