Pressure of {HEAD ~ the inner roller} to {TAIL ~ the outer roller} is adjusted to be greater than that of the heater to the outer roller 
Pressure of { HEAD ~ the inner roller } to { TAIL ~ the outer roller } is adjusted to be greater than that of the heater to the outer roller
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH