Patent ID: 8091987

Claim:
A print head for ink jet printing comprising: an ink chamber for containing an ink, said ink chamber being elongate in a first direction; a nozzle plate, having a nozzle for ejecting a drop of ink through it, at an end of said ink chamber with respect to said first direction; an ink inlet to the ink chamber for supplying an ink print-flow to replenish the ejected drops, to said ink chamber; a first ink connection for supplying an ink through-flow in excess of said ink print-flow at continuous printing, to a through-flow path; and a second ink connection for draining said ink through-flow from said through-flow path; said through-flow path comprising an ink path for guiding said ink through-flow along an inner end of said nozzle and in a direction parallel with the nozzle plate; wherein said ink path is proximal to said nozzle plate and wherein said print head is adapted such that said ink print-flow is superimposed at least in part on said ink through-flow.