{HEAD ~ A diaphragm} is biased into sealing {TAIL ~ engagement} with the valve seat to provide a fluid seal between the ink inlet and the ink outlet 
is biased into sealing
{ HEAD ~ A diaphragm } is biased into sealing { TAIL ~ engagement } with the valve seat to provide a fluid seal between the ink inlet and the ink outlet
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH