Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1990-09-28
1992-08-04
Hartary, Joseph W.
Recorders
Markers and/or driving means therefor
With ink supply to marker
B41J 214, B41J 205
Patent
active
051363100
ABSTRACT:
An ink-repellant coating is provided on the nozzle face of a thermal ink jet printhead. The nozzle face has areas made from different materials. Alkyl polysiloxanes are used to treat the nozzle face in order to control wetting characteristics so as to improve jet directionality and to prevent accumulation of debris on the face. An intermediate layer of silica formed between the nozzle face and the ink-repellant layer is provided so that the ink-repellant layer is isotropically hydrophobic.
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Shih, Peter T. K.; Antiwetting Organosilanes & Composite Films for Ink Jet Nozzles; IBM TDB, V7, N5 Sep./Oct. 1982, p. 321.
Hartary Joseph W.
Xerox Corporation
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