Piezoelectric ink jet module with seal

Details Piezoelectric ink jet module with seal Piezoelectric ink jet module with seal

B - Operations, Transporting

41

J

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

Patent

CA 2620776

A piezoelectric ink jet head that includes a polymer film (30, 30'), for example a flex print, located between the piezoelectric element (34, 34') and the reservoirs in the jet body (20). The film provides an efficient seal for the reservoirs and also positions the electrodes on the side of the piezoelectric element in which motion is effected, which can reduce the magnitude of the drive voltage. This location of the compliant flex print material also can enhance electrical and mechanical isolation between reservoirs, which improves jetting accuracy. The compliance of the polymer also reduces strain on the ink jet head.

Tête d'imprimante à jet d'encre piézoélectrique comprenant une pellicule polymérique (30, 30'), par exemple du flex imprimé, située entre l'élément piézoélectrique (34, 34') et les réservoirs du corps d'éjection (20). La pellicule scelle efficacement les réservoirs et positionne les électrodes sur le côté de l'élément piézoélectrique qui imprime le mouvement, ce qui peut réduire la tension de commande. L'emplacement du matériel d'impression flex souple peut également améliorer l'isolation électrique et mécanique entre les réservoirs, ce qui accroît la précision du jet. La souplesse du polymère réduit également la tension exercée sur la tête d'impression.

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