Flüssigkeitsausstossvorrichtung und Kopfeinheit

Details

Veröffentlichungs-Nr.

EP4768256

Anmeldetag

24. Dezember 2025

Veröffentlichung

1. Juli 2026

Rechtsraum

EP

IPC

B41J2/045

Abstract

A liquid ejecting apparatus includes a transport section that transports a medium, an ejection section that ejects liquid to the medium, a residual vibration detection circuit that acquires a residual vibration signal corresponding to residual vibration generated in the ejection section and outputs a residual vibration detection signal corresponding to the residual vibration signal, a first conversion circuit that includes a comparison circuit and outputs a comparison result signal in which a logic level changes according to a comparison result between a voltage value of the residual vibration detection signal and a reference voltage value, a second conversion circuit that includes an A/D conversion circuit and outputs a detection voltage signal obtained by converting the residual vibration detection signal into a digital signal, and a determination circuit that determines a state of the ejection section, and the determination circuit includes a first determination mode in which the state of the ejection section is determined according to the comparison result signal, and a second determination mode in which the state of the ejection section is determined according to the detection voltage signal.

Anmelder

Firma

Seiko Epson Corporation

Land

🇯🇵 Japan

Fachgebiete