It has been observed that {HEAD ~ the electrical a c biasing} of {TAIL ~ the OPC} provides improved performance in terms of toner transfer from the OPC to the printing support 
of
It has been observed that { HEAD ~ the electrical a c biasing } of { TAIL ~ the OPC } provides improved performance in terms of toner transfer from the OPC to the printing support
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH