B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
B41J 2/045 (2006.01)
Patent
CA 2309041
The invention relates to a droplet deposition apparatus including an ink actuator (100) for ejecting ink droplets; a control unit (130) for controlling droplet formation; and power supply means for supplying a drive voltage to the control unit (130); the drive voltage having a voltage amplitude (V100); the control unit (130) having a plurality of drive signal sources (320) for defining the wave forms of said electric signals; means (470) for detecting at least one performance affecting value; and means (490) for generating an amplitude control signal in response to the performance affecting value; and wherein the power supply means (330) comprises means (350) for adjusting the amplitude of the drive voltage in response to the amplitude control signal; said power supply means being separated from said control unit.
L'invention porte sur un dispositif de dépôt de gouttelettes comportant: un actionneur (100) éjectant les gouttelettes d'encre; une unité (130) commandant la formation des gouttelettes; une alimentation en tension de valeur (V¿100?) de l'unité (130) susdite. L'unité (130) de commande comprend plusieurs sources (320) de signaux pilotes définissant les formes d'ondes desdits signaux électriques, des moyens (470) de détection, au moins une valeur influant sur au moins une performance, et des moyens (490) de production d'un signal de réglage d'amplitude en fonction de la susdite valeur. L'alimentation (33), qui comprend un moyen de réglage (350) de l'amplitude du courant pilote en fonction de l'amplitude du signal de commande, est séparée de la susdite unité de commande.
Bostrom Christer
de Roos Mike
Fetherstonhaugh & Co.
Xaarjet Ab
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