The printer may be of {HEAD ~ any suitable nature}, but is preferably of the type described in {TAIL ~ Model 6400 Series Alphanumeric Printers}, by Digiter Instrumentation, publication No 8806400 BK379R5BP 
The printer may be of { HEAD ~ any suitable nature } , but is preferably of the type described in { TAIL ~ Model 6400 Series Alphanumeric Printers } , by Digiter Instrumentation , publication No 8806400 BK379R5BP
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH