Droplet deposition apparatus

B - Operations – Transporting – 41 – J

Patent

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

Patent

CA 2380144

A component for a drop-on-demand piezoelectric printhead is formed from a block of piezoelectric material (100) and a substrate (86). The block of piezoelectric material has grooves formed in its lower surface (681) and is attached to the substrate using an adhesive (670) that is applied in sufficient quantity such that adhesive enters the grooves cut into the piezoelectric material. Upper grooves (7) are sawn into the piezoelectric material through to the glue- filled lower channels (681) in order to form ejection channels, the walls (13) of which are separated from one another by means of a glue fillet (680).

Selon l'invention, un composant pour une tête d'impression piézoélectrique de type "goutte à la demande" est formé à partir d'un bloc de matériau piézoélectrique (100) et d'un substrat (86). Le bloc de matériau piézoélectrique comporte des rainures formées sur sa surface inférieure (681) et est relié au substrat au moyen d'un adhésif (670) appliqué en quantité suffisante à entrer dans les rainures découpées dans le matériau piézoélectrique. Des rainures supérieures (7) sont sciées dans le matériau piézoélectrique à travers les canaux inférieurs (681) remplis de colle afin de former des canaux d'éjection, les parois (13) de ces canaux étant séparées les unes des autres au moyen d'un filet de colle (680).

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