Power circuit and {HEAD ~ method} for controlling {TAIL ~ drive and control voltages} of an image formation apparatus 
for controlling
Power circuit and { HEAD ~ method } for controlling { TAIL ~ drive and control voltages } of an image formation apparatus
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH