Droplet deposition apparatus and methods of manufacture thereof

B - Operations – Transporting – 41 – J

Patent

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B41J 2/14 (2006.01) B41J 2/045 (2006.01) B41J 2/16 (2006.01)

Patent

CA 2301819

A piezoelectric printhead or other droplet deposition apparatus has parallel liquid containing channels defined by a base and displaceable walls, and covered by a cover number. The channels each have at least one nozzle for ejecting droplets. Each nozzle may be disposed in the base, the cover then having two ink supply parts spaced lengthwise of each channel on opposite sides of the nozzle. Alternatively two longitudinally spaced nozzles may be provided in the base of each channel. The cover may have a conductive track corrected to wall-displacing electrodes, the points of connection being outside the channels.

Une tête d'impression piézo-électrique ou un autre appareil de dépôt de goutelettes comprend des passages parallèles contenant du liquide définis par une base et des parois mobiles et comportant un élément de couvercle. Les passages comportent chacun au moins une buse servant à l'éjection de goutelettes. Chaque buse peut être placée dans la base, le couvercle comprenant alors deux parties d'alimentation en encre espacées sur la longueur de chaque passage sur les côtés opposés de la buse. Dans une autre forme de réalisation des buses espacées dans le sens longitudinal peuvent être prévues dans la base de chaque passage. Le couvercle peut comporter une piste conductrice reliée à des électrodes déplaçant les parois, les points de connexion se situant à l'extérieur des passages.

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