Arranged inside the belt are {HEAD ~ a heater} and an inner roller which are forced at respective pressures to the outer roller through {TAIL ~ the belt} 
are forced through
Arranged inside the belt are { HEAD ~ a heater } and an inner roller which are forced at respective pressures to the outer roller through { TAIL ~ the belt }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL