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