After {HEAD ~ the document sheet} is thus correctly transported to {TAIL ~ the designated scanning position}, a signal indicative of its correct positioning is transmitted to the copier main body and the standard copying operation is started 
is correctly transported to
After { HEAD ~ the document sheet } is thus correctly transported to { TAIL ~ the designated scanning position } , a signal indicative of its correct positioning is transmitted to the copier main body and the standard copying operation is started
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH