Operation of droplet deposition apparatus

B - Operations – Transporting – 41 – J

Patent

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B41J 2/05 (2006.01)

Patent

CA 2249221

In droplet deposition apparatus comprising one or more independently actuable ink ejection chambers, electrical signals are applied to reduce variation in the temperature of the droplet fluid between chambers and with variations in droplet ejection input data. Short potential difference pulses, suitable for influencing the temperature of the droplet fluid in a chamber, can be generated by application of longer duration voltages to ink chamber actuation means.

L'invention porte sur un appareil de dépôt de gouttelettes comportant une ou plusieurs chambres d'éjection d'encre commandables. Des signaux électriques sont appliqués pour réduire les différences de température du liquide formant les gouttelettes entre les chambres, les données d'entrée d'éjection des gouttelettes présentant des variations. De courtes impulsions de différence de potentiel susceptibles d'influer sur la température du fluide formant les gouttelettes contenu dans les chambres peuvent être obtenues par l'application de tensions de plus longue durée aux moyens de commande des chambres.

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