The deposition means has a body communicating with {HEAD ~ the supply} of {TAIL ~ material} and a valve means responsive to the control selectively delivers droplets to the substrate 
of
The deposition means has a body communicating with { HEAD ~ the supply } of { TAIL ~ material } and a valve means responsive to the control selectively delivers droplets to the substrate
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH