Loading patent…
AssigneeLexmark International, Inc.
InventorsRichard Louis Goin, Colin Geoffrey Maher, James Harold Powers
Estimating the term…
An improved ink jet printhead for an ink jet printer and method therefor. The printhead includes a semiconductor substrate containing ink ejection devices. A thick film layer is attached to the substrate. A nozzle plate is attached to the thick film layer. The nozzle plate contains a plurality of ink ejection nozzles corresponding to the ink ejection devices. The printhead contains flow features having a height dimension and a width dimension formed therein for flow of ink to the plurality of ink ejection devices for ejection through the nozzles. At least a portion of the flow feature dimensions for at least one of the nozzles is formed in both the thick film layer and laser ablated in the nozzle plate, wherein the thick film layer contains at least 12% of the flow feature dimensions.
An ink jet printhead for an ink jet printer, comprising a substrate containing ink ejection devices, a thick film layer attached to the substrate, and a nozzle plate attached to the thick film layer, the nozzle plate containing a plurality of ink ejection nozzles corresponding to the ink ejection devices, and the printhead containing flow features having a height dimension and a width dimension formed therein for flow of ink from an ink feed slot through ink flow channels in the thick film layer directly connecting the ink feed slot with the plurality of ink ejection devices for ejection through the nozzles, wherein at least a portion of the flow feature dimensions for at least one of the ejection devices is formed in both the thick film layer and laser ablated in the nozzle plate, and wherein the thick film layer contains at least 12% of the flow feature dimensions.
An ink jet printhead comprising:
Dependencies are inferred from the claim text.