Flüssigkeitsdetektionsvorrichtung und Tintenstrahlkopf

Details

Veröffentlichungs-Nr.

EP4717458

Anmeldetag

6. August 2025

Veröffentlichung

1. April 2026

Rechtsraum

EP

IPC

B41J2/045, B41J2/14

Abstract

A liquid ejection device includes a nozzle, a pressure chamber, a volume of which is varied to eject liquid from the nozzle, an actuator configured to vary the volume in response to a drive signal, and a drive circuit configured to generate the drive signal that includes a first ejection waveform, a first holding waveform subsequent to the first ejection waveform, a second ejection waveform subsequent to the first holding waveform, a second holding waveform subsequent to the second ejection waveform, a contraction waveform subsequent to the second holding waveform, a third ejection waveform subsequent to the contraction waveform, and a third holding waveform subsequent to the third ejection waveform. A time between the centers of the second and third ejection waveforms is longer than a time between the centers of the first and the second ejection waveforms.

Anmelder

Firma

RISO Technologies Corporation

Land

🇯🇵 Japan