{HEAD ~ A guard member} is positioned on the substrate and is spaced from {TAIL ~ the nozzle assemblies} 
is spaced from
{ HEAD ~ A guard member } is positioned on the substrate and is spaced from { TAIL ~ the nozzle assemblies }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL