Reinigungsverfahren für eine Tintenstrahlabbildungsvorrichtung

Details

Veröffentlichungs-Nr.

EP4011630

Aktenzeichen

EP20213931

Anmeldetag

14. Dezember 2020

Veröffentlichung

12. Februar 2025

Erteilung

12. Februar 2025

Rechtsraum

EP

IPC

B41J2/165B41J2/01

Abstract

The present invention relates to a method for cleaning an ink jet imaging device, the ink jet imaging device comprising a main ink supply channel (2) comprising an entrance side for supplying ink, a first ink channel comprising a first pressure chamber fluidly connected to a first nozzle; and a first actuator associated with the first pressure chamber, the first ink channel being in fluid connection with the main ink supply channel and defining a first ink path from the entrance side of the main ink supply channel to the first nozzle and having a first length L1, the ink jet imaging device comprising a second ink channel comprising a second pressure chamber fluidly connected to a second nozzle; and a second actuator associated with the second pressure chamber, the second ink channel being in fluid connection with the main ink supply channel and defining a second ink path from the entrance side of the main ink supply channel to the second nozzle and having a second length L2, wherein L2>L1; the method comprising the steps of: a) purging ink through the first and the second nozzle by applying a pressure on the entrance side of the main ink supply channel; and b) simultaneously to step a) actuating the first ink channel by applying a first actuation pulse to the first actuator wherein the actuation pulse provides a pressure wave in the first ink channel that counteracts the local pressure in the first ink channel, such that the flow through the first ink channel is reduced during purging.

Anmelder

Firma

Canon Production Printing Holding B.V.

Land

🇳🇱 Niederlande

Fachgebiete