Recorders – Performance of multiple functions of steam and gas engines – Pressure responsive element
Patent
1992-04-02
1994-04-19
Hartary, Joseph W.
Recorders
Performance of multiple functions of steam and gas engines
Pressure responsive element
298901, 21912170, 21912171, 264156, 264160, 346140R, B41J 205, B41J 216
Patent
active
053050150
ABSTRACT:
In one of the preferred embodiments, an inkjet printhead includes a nozzle member formed of a polymer material that has been laser-ablated to form tapered inkjet orifices. The nozzle member is then mounted to a substrate containing heating elements, each heating element being associated with a single orifice. In a preferred method, the orifices are formed by Excimer laser ablation.
In other aspects of the invention, vaporization chambers as well as ink channels, providing fluid communication between an ink reservoir and the orifices, are also formed by Excimer laser ablation.
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Hanson Eric G.
Lam Si-Ty
Lloyd William J.
McClelland Paul H.
Mittelstadt Laurie S.
Hartary Joseph W.
Hewlett--Packard Company
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