Single-pass inkjet printing

B - Operations – Transporting – 41 – J

Patent

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B41J 2/155 (2006.01)

Patent

CA 2365200

A print head has an array of ink orifices arranged to selectivelydeposit drops of ink along parallel print lines on the medium while the medium and the print head undergo relative motion in a printing direction parallel to the print lines, the printing being completed in a single pass of the print head relative the medium. The orifices in the array are arranged in a pattern such that adjacent parallel print lines on the medium are served by orifices that have different positions in the array along the direction of the print lines. The different positions of the orifices that serve any pair of adjacent parallel lines are separated by no less than a first predetermined distance along the direction of the print lines.

L'invention concerne une tête d'impression comprenant un système d'orifices d'encrage disposés de manière à déposer ponctuellement sur le support des gouttes d'encre le long de lignes d'impression parallèles. Le support et la tête d'impression sont soumis à un mouvement relatif dans une direction d'impression parallèle aux lignes d'impressions. L'impression est achevée après un seul passage de la tête d'impression sur le support. Les orifices du système sont disposés en réseau de manière que les lignes d'impression parallèles adjacentes du support soient desservies par des orifices qui ont des positions différentes dans le système suivant la direction des lignes d'impression. Les différentes positions des orifices qui desservent un quelconque couple de lignes parallèles adjacentes sont séparées par un premier espace prédéterminé suivant la direction des lignes d'impression.

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