Antriebssteuerung, Kopfeinheit und Flüssigkeitsausstossvorrichtung

Details

Veröffentlichungs-Nr.

EP4275905

Aktenzeichen

EP23172655

Anmeldetag

10. Mai 2023

Veröffentlichung

25. Dezember 2024

Erteilung

25. Dezember 2024

Rechtsraum

EP

IPC

B41J2/045B41J2/14

Abstract

A drive controller (40) includes circuitry (41). The circuitry (41) generates multiple types of drive pulses to be applied to a driver (18) of a liquid discharge head (10) including a valve (17) to open and close a discharge port (14), and applies the multiple types of drive pulses to the driver (18) to cause the driver (18) to move the valve (17) to open and close the discharge port (14). Each of the multiple types of drive pulses causes the valve (17) to move away from the discharge port (14) at a valve-opening speed to open the discharge port (14), keep opening the discharge port (14) for an open time, and move toward the discharge port (14) at a valve-closing speed to close the discharge port (14). Further, the circuitry generates the multiple types of drive pulses, the open time and the valve-closing speed of which are different, and changes the valve-closing speed according to the open time.

Anmelder

Firma

Ricoh Company, Ltd.

Land

🇯🇵 Japan

Fachgebiete