A reciprocable drive mechanism supporting the hammer bank is mounted to undergo free flight with {HEAD ~ low friction} along {TAIL ~ a selected axis} parallel to a printing line 
along
A reciprocable drive mechanism supporting the hammer bank is mounted to undergo free flight with { HEAD ~ low friction } along { TAIL ~ a selected axis } parallel to a printing line
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH