Flüssigkeitsausstosskopf und Flüssigkeitsausstossvorrichtung

Details

Veröffentlichungs-Nr.

EP3235645

Aktenzeichen

EP17167551

Anmeldetag

21. April 2017

Veröffentlichung

1. April 2020

Erteilung

1. April 2020

Rechtsraum

EP

IPC

B41J2/14B41J2/175B41J2/19

Abstract

A liquid ejecting head unit includes a drive unit for ejecting a liquid inside a pressure chamber from a nozzle opening which communicates with the pressure chamber, a common liquid chamber which communicates with a plurality of the pressure chambers, a bubble return flow path for communicating with the common liquid chamber and discharging bubbles inside the common liquid chamber, a confluence point which communicates with a plurality of the bubble return flow paths, a collective return flow path for communicating with the confluence point and discharging the bubbles inside the plurality of bubble return flow paths, and a one-way valve which is provided part way down the bubble return flow path.

Anmelder

Firma

Seiko Epson Corporation

Land

🇯🇵 Japan

Fachgebiete