a waste ink outlet in fluid communication with {TAIL ~ the printhead} {HEAD ~ IC} via a downstream ink line 
a waste ink outlet in fluid communication with { TAIL ~ the printhead } { HEAD ~ IC } via a downstream ink line
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH