{HEAD ~ This frequency modulation apparatus} is used in an image formation apparatus having an image bearing body to be scanned by {TAIL ~ a laser beam} 
{ HEAD ~ This frequency modulation apparatus } is used in an image formation apparatus having an image bearing body to be scanned by { TAIL ~ a laser beam }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL