A control causes relative motion between the conveyer and the movable support means varying {HEAD ~ the position} of {TAIL ~ the deposition} means relative to the substrate 
of
A control causes relative motion between the conveyer and the movable support means varying { HEAD ~ the position } of { TAIL ~ the deposition } means relative to the substrate
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH