a plurality of print wheels rotatably supported within said print drum, {HEAD ~ each} of {TAIL ~ said print wheels} having a portion extending through said print drum opening, 
of
a plurality of print wheels rotatably supported within said print drum , { HEAD ~ each } of { TAIL ~ said print wheels } having a portion extending through said print drum opening ,
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH