means for applying {TAIL ~ such a potential} to all of said plurality of {HEAD ~ electrodes} that surface areas beneath said electrodes each become an accumulation state to thereby inject all of charge into said substrate; and 
means for applying { TAIL ~ such a potential } to all of said plurality of { HEAD ~ electrodes } that surface areas beneath said electrodes each become an accumulation state to thereby inject all of charge into said substrate ; and
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH 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