Flüssigkeitsausstosskopf, Verfahren und Vorrichtung

Details

Veröffentlichungs-Nr.

EP4751919

Anmeldetag

21. August 2025

Veröffentlichung

3. Juni 2026

Rechtsraum

EP

IPC

B41J2/045

Abstract

A liquid ejection head includes a nozzle plate including a nozzle, a pressure chamber that is capable of storing liquid and communicates with the nozzle, a volume of the pressure chamber being varied to eject the liquid from the nozzle, an actuator configured to vary the volume of the pressure chamber in response to a drive signal, and a drive circuit configured to generate the drive signal that includes a plurality of ejection waveforms. One of the ejection waveforms follows a preceding ejection waveform after an intermediate time period. The drive circuit is configured to set the intermediate time period based on an ejection speed of the liquid that is 0.2 times or more and 2 times or less of a half cycle of a natural vibration period of the liquid in the pressure chamber.

Anmelder

Firma

RISO Technologies Corporation

Land

🇯🇵 Japan