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