a heat roller which provides {TAIL ~ heat} for {HEAD ~ the sheet} having the image formed thereon 
a heat roller which provides { TAIL ~ heat } for { HEAD ~ the sheet } having the image formed thereon
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH