To optimize the protection provided, the guard forms a flat shield covering {HEAD ~ the exterior side} of the nozzles wherein the shield has an array of {TAIL ~ passages} big enough to allow the ejection of ink droplets but small enough to prevent inadvertent contact or the ingress of most dust particles 
To optimize the protection provided , the guard forms a flat shield covering { HEAD ~ the exterior side } of the nozzles wherein the shield has an array of { TAIL ~ passages } big enough to allow the ejection of ink droplets but small enough to prevent inadvertent contact or the ingress of most dust particles
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH