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