{HEAD ~ A scanner} 18 wherein the scanner has {TAIL ~ a roller transport} for positioning articles to be scanned 
{ HEAD ~ A scanner } 18 wherein the scanner has { TAIL ~ a roller transport } for positioning articles to be scanned
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH