With the arrangement of the smaller diameter drive surface 30 and the larger diameter slip surfaces 32, the marker tubing stock 20 and {HEAD ~ the carrier} 22 can be positioned in {TAIL ~ a substantially common plane} as the product passes the print head 26 
positioned in
With the arrangement of the smaller diameter drive surface 30 and the larger diameter slip surfaces 32 , the marker tubing stock 20 and { HEAD ~ the carrier } 22 can be positioned in { TAIL ~ a substantially common plane } as the product passes the print head 26
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH