Ink jet record head

Details Ink jet record head Ink jet record head

2006-01-10

2006-01-10

Gordon, Raquel Yvette (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

06984026

ABSTRACT:
To provide an ink jet record head having a nozzle shape capable of promptly curbing meniscus vibrations occurring on refilling and stably performing discharge.A second discharge port portion10has a form in which, with a lower side of a square on a bubbling chamber8side, angles on an upper side of the square are curved respectively on any cross section vertical to a principal surface of an element substrate on which heaters1are formed and going through the center of a discharge port4, and these curves are shaped as arcs of circles of a radius R inscribed in the angles on the upper side of the square respectively.

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