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