Method of forming tapered orifice arrays in fully assembled...

B - Operations – Transporting – 41 – J

Patent

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Details

B41J 2/16 (2006.01) B23K 26/00 (2006.01) B23K 26/38 (2006.01)

Patent

CA 2126753

A method of forming an outwardly tapered orifice (16) for a fully assembled ink jet printhead (10). A main body (12) portion and a cover plate (14) for an ink jet printhead (10) are mounted together such that the cover plate (14) covers an ink-carrying channel (22) which axially extends through the main body portion (12). First and second light beam capable of ablating the material-used to form the cover plate (14) is generated and an ink- carrying channel (22) communicating orifice extending through the cover plate (14) and tapering outwardly from a front side of the cover plate (14) to a back side (14a) of the cover plate (14) is formed by directing the first and second light beams at the front side ( 14b) of the cover plate ( 14) at first and second angles, respectively, whereby the first and second light beams form the outwardly tapered orifice (16).

Procédé servant à former un orifice (16) se rétrécissant vers l'extérieur sur une tête porte-caractère à jet d'encre entièrement assemblée (10). Une partie corps principal (12) et une plaque de couverture (14) pour une tête à jet d'encre (10) sont montées ensemble de façon que la plaque de couverture (14) recouvre une voie (22) de transport d'encre qui s'étend de manière axiale à travers le corps principal (12). Des premier et second faisceaux de lumière pouvant soumettre le matériau composant la plaque de couverture (14) à une ablation sont généres, et un orifice communiquant avec la voie (22) de transport d'encre, s'étendant à travers la plaque de couverture (14) et se rétrécissant vers l'extérieur à partir d'un côté avant de la plaque de couverture (14) vers un côté arrière (14a) de celle-ci (14) est produit lorsque les premier et second faisceaux de lumière sont dirigés sur le côté avant (14b) de la plaque (14), à un premier et à un second angle respectifs, de façon à former l'orifice à rétrécissement vers l'extérieur (16).

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