Recorders – Performance of multiple functions of steam and gas engines – Pressure responsive element
Patent
1991-10-02
1993-02-23
Hartary, Joseph W.
Recorders
Performance of multiple functions of steam and gas engines
Pressure responsive element
2191217, 21912171, 346140R, B41J 216, B41J 2045
Patent
active
051894378
ABSTRACT:
A method of manufacturing one or more nozzles for an ink jet printhead initially comprises bonding a nozzle plate to the ink ejection end of the printhead. A mask is then secured in contact with the nozzle plate, the mask having a plurality of apertures each defining a respective nozzle exit. Laser radiation applied to the mask exposes the areas defined by the apertures to ablate the plate material between the nozzle exits on the external surface of the plate and corresponding nozzle inlets on the opposite surface of the plate. The assembly comprising the printhead, plate and mask is rocked during the exposure step to increase the area of the nozzle inlet relative to its outlet. Also, prior to the nozzle formation step, one or more ink troughs may be provided for supplying an external source of ink for each nozzle. The ink troughs, which may be formed using laser ablation techniques similar to those used in the formation of the nozzles, facilitate a continuous, positive flow of ink through the nozzles.
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Kords, Donald N.; Removal of Ink Deposits Located Near the Nozzles of an Ink Jet Device; Xerox Disclosure Journal; vol. 9, No. 4 Jul./Aug. 1985, pp. 247-248.
Michaelis A. John
Paton Anthony D.
Temple Stephen
Hartary Joseph W.
XAAR Limited
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