After the front edge of the document sheet touches the stopper 101, the motor 21 is run for an extra period of {HEAD ~ time} sufficient for moving {TAIL ~ the conveyer belt} 10 by about 10 mm 
sufficient for moving
After the front edge of the document sheet touches the stopper 101 , the motor 21 is run for an extra period of { HEAD ~ time } sufficient for moving { TAIL ~ the conveyer belt } 10 by about 10 mm
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 REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH