Flüssigkeitsstrahlkopf und Flüssigkeitsstrahlkopfvorrichtung

Details

Veröffentlichungs-Nr.

EP2570263

Aktenzeichen

EP12181547

Anmeldetag

23. August 2012

Veröffentlichung

27. Mai 2020

Erteilung

27. Mai 2020

Rechtsraum

EP

IPC

B41J2/14

Abstract

A liquid-jet head includes nozzles, pressurized chambers to communicate with the nozzles, a common liquid chamber to communicate with each of the pressurized chambers, each of the common liquid chamber and the pressurized liquid chambers having a negative pressure of a predetermined value, first communicating paths to communicate between the common liquid chamber and the pressurized liquid chamber to serve as a filter to prevent air bubbles from intruding into the pressurized liquid chamber, the filter having openings, each opening having an opening area smaller than an opening area of each of the nozzles, and an air bubble discharge chamber including a second communicating path to communicate with the common liquid chamber having an air bubble remaining part in a region downstream in a liquid flow direction, and an opening part from which the air bubbles having entered via the second communicating path are discharged during a maintenance-restoration operation.

Anmelder

Firma

Ricoh Company, Ltd.

Land

🇯🇵 Japan

Fachgebiete