In {TAIL ~ the printing operation}, first, {HEAD ~ record data} is received from the host computer 25  
In
In { TAIL ~ the printing operation } , first , { HEAD ~ record data } is received from the host computer 25
REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH