Print head unit and {TAIL ~ method} for manufacturing {HEAD ~ patterned layer} on substrate with the same 
Print head unit and { TAIL ~ method } for manufacturing { HEAD ~ patterned layer } on substrate with the same
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH