{TAIL ~ A further advantage} occurs in the transfer zone where {HEAD ~ the electrical field} locally reaches a high strength and where the printing support, positively biased, is subjected to a pulsing force which causes its vibration 
{ TAIL ~ A further advantage } occurs in the transfer zone where { HEAD ~ the electrical field } locally reaches a high strength and where the printing support , positively biased , is subjected to a pulsing force which causes its vibration
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH