Flüssigkeitsausstosskopf, Flüssigkeitsausstossvorrichtung und Bilderzeugungsvorrichtung

Details

Veröffentlichungs-Nr.

EP4717460

Anmeldetag

3. September 2025

Veröffentlichung

1. April 2026

Rechtsraum

EP

IPC

B41J2/14, B41J2/045, B41J2/18(NISHIMURA HIROSHI et al.)(UEZAWA HARUHISA et al.)

Abstract

A liquid ejection head includes pressure chambers arranged in a first direction and respectively communicating with nozzles, each pressure chamber capable of storing liquid, pairs of upstream and downstream flow paths, each pair communicating with a pressure chamber, an upstream common chamber communicating with the upstream flow paths, a downstream common chamber communicating with the downstream flow paths, and a bypass flow path communicating with the upstream and downstream common chambers. A circulation flow rate of the liquid is greater than or equal to a maximum total ejection flow rate of the liquid ejected from the nozzles. The circulation flow rate is a flow rate at which the liquid flowing through the upstream flow paths to the downstream flow paths when a flow rate of the liquid entering from the upstream port is substantially equal to a flow rate of the liquid exiting through the downstream port.

Anmelder

Firma

RISO Technologies Corporation

Land

🇯🇵 Japan