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