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