Ink jet recording head with discharge opening surface treatment

Details Ink jet recording head with discharge opening surface treatment Ink jet recording head with discharge opening surface treatment

1995-06-02

1996-12-03

Hartary, Joseph W.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 47, B41J 214

Patent

active

055812856

ABSTRACT:
An ink jet recording head for discharging liquid and recording on a recording medium includes a substrate having a liquid path, and a discharge opening provided on a surface of the substrate and communicating with the liquid path. Plurality raised surface irregularities are formed on the surface of the substrate having the discharge opening. The surface irregularities are disposed in a predetermined pattern and have protruding portions which are distinct from one another and which have been subjected to a liquid repellant surface treatment.

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Quaca, Ahn; Ink Jet Cleaning, Xerox Disclosure Journal, vol. 7, No. 5, Sep./Oct. 1982, p. 323.

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