The load of either the paper feeding unit or the paper discharging unit is supported by {HEAD ~ said contact pieces} at {TAIL ~ the closed position} of the ADF 
The load of either the paper feeding unit or the paper discharging unit is supported by { HEAD ~ said contact pieces } at { TAIL ~ the closed position } of the ADF
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 OTH OTH OTH