Flüssigkeitsausstossvorrichtung, Trägermittel und Verfahren zur Steuerung des Antriebs eines Flüssigkeitsausstosskopfes

Details

Veröffentlichungs-Nr.

EP4357138

Aktenzeichen

EP23203780

Anmeldetag

16. Oktober 2023

Veröffentlichung

28. Januar 2026

Erteilung

28. Januar 2026

Rechtsraum

EP

IPC

B41J2/14B41J2/045

Abstract

A liquid discharge apparatus (1) includes a liquid discharge head (34a, 34b) including a plurality of nozzles (104) to discharge liquid droplets, a plurality of individual liquid chambers (106) communicating with the plurality of nozzles (104), and a plurality of pressure generators (112) to generate a pressure that pressurizes liquid in the plurality of individual liquid chambers, and a head drive controller (509) to output, to the plurality of pressure generators (112), a drive waveform including one pulse or two or more pulses selected according to a droplet size. In a case that the drive waveform includes the two or more pulses, the drive waveform includes a final pulse at an end of the two or more pulses. The final pulse includes a first expansion waveform element, a first contraction waveform element, a second expansion waveform element, a second contraction waveform element, and a third expansion waveform element for expanding the plurality of individual liquid chambers, the third expansion waveform element being subsequent to the second contraction waveform element. A time period from a start of the first contraction waveform element to a start of the second expansion waveform element is less than 0.5 Tc. A time period from the start of the first contraction waveform element to a start of the second contraction waveform element is within a range from 0.5 Tc to 0.6 Tc.

Anmelder

Firma

Ricoh Company, Ltd.

Land

🇯🇵 Japan

Fachgebiete