Droplet deposition apparatus and method of manufacture

B - Operations – Transporting – 41 – J

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

Patent

CA 2168949

As a step in the manufacture of an ink jet printer, a cover (16) is adhesively bonded to a piezoelectric layer (10) having parallel grooves (20) which will serve as ink channels in the finished printer. Mating surfaces are prepared, excess adhesive is applied and bond pressure exerted until surface extremities of the two surfaces come into contact, producing a bond layer of 2µm or less. To ensure that the flow distance of excess adhesive is uniform over the bond plane, grooves (32) are cut at the margin (30) of the piezoelectric layer.

Une étape de la fabrication d'une imprimante à jet d'encre consiste à coller un couvercle (16) sur une couche piézoélectrique (10) présentant des rainures parallèles (20) qui serviront de passages à encre dans l'imprimante achevée. Des surfaces appariées sont préparées, un excédent d'addésif est appliqué et une pression de fixation exercée jusqu'à ce que les extrémités superficielles des deux surfaces entrent en contact, ce qui produit une couche de fixation ne dépassant pas 2 mu m. Afin d'assurer que la distance d'écoulement de l'excédent d'adhésif demeure uniforme sur tout le plan de fixation, des rainures (32) sont découpées au bord (30) de la couche piézoélectrique.

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