Tintenstrahlkopf und Tintenstrahldrucker

Details

Veröffentlichungs-Nr.

EP3199349

Aktenzeichen

EP17152258

Anmeldetag

19. Januar 2017

Veröffentlichung

26. September 2018

Erteilung

26. September 2018

Rechtsraum

EP

IPC

B41J2/045B41J2/14

Abstract

An ink jet head includes first side walls including two piezoelectric elements, second side walls, a first electrode, a second electrode, an ink chamber containing conductive ink, and a control unit. The second side walls alternate with the first side walls to provide side surfaces for driving pressure chambers and dummy pressure chambers. On one of the first side walls, the first electrode is on the side wall surface of a driving pressure chamber and a second electrode is on the side wall surface of a dummy pressure chamber. The control unit applies a voltage having a first waveform to the first electrode, and a voltage having a second waveform, a portion of which is inverted with respect to the first waveform, to the second electrode to cause ink to be ejected, and cause the second electrode to electrically float such that ink is not ejected.

Anmelder

Firma

Toshiba TEC Kabushiki Kaisha

Land

🇯🇵 Japan

Fachgebiete