Importance

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Abstract

A thermal ink jet printhead having an ink inlet and a plurality of droplet emitting nozzles is disclosed in which a patterned gasket is provided around each inlet during mass printhead fabrication. A plurality of printheads are obtained by dicing two mated substrates mounted in a holding film frame. A confronting surface of one of the substrates contains a plurality of sets of heating elements and addressing electrodes. The confronting surface of the other substrate contains a plurality of sets of recesses which serve as ink flow directing channels in communication with the nozzles and a reservoir having inlets in the opposite surface of the other substrate. In one embodiment, a polymeric thick film layer is deposited and photo-patterned to provide each inlet with a gasket, the surface of which is coated with a reflowable and curable adhesive for adherence to an ink supply such as an ink cartridge. In another embodiment, a compliant material such as silicone is screen printed directly around the printhead inlets.

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First Claim