A printer hammer bank for {HEAD ~ a dot matrix} or other type printer is reciprocated at high speed along a printing position by {TAIL ~ a low mass, low inertia servo controlled drive} 
A printer hammer bank for { HEAD ~ a dot matrix } or other type printer is reciprocated at high speed along a printing position by { TAIL ~ a low mass , low inertia servo controlled drive }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL