Inkjet printing with air movement system

B - Operations – Transporting – 41 – J

Patent

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Details

B41J 2/05 (2006.01) B41J 29/393 (2006.01)

Patent

CA 2408543

An inkjet printer includes a printhead having a plurality of ink orifices formed therein. During printing, ink drops are ejected through the ink orifices into a print zone between the printhead and a print medium with an intended ink drop trajectory toward the print medium. An air movement system directs an air stream to the print zone substantially parallel to the intended ink drop trajectory as the ink drops are ejected during printing so as to affect air currents acting on the ink drops during printing and prevent print defects caused by the air currents. The air stream, however, does not disrupt the intended trajectory of the ink drops during printing.

Une imprimante à jet d'encre comprend une tête d'impression présentant une pluralité d'orifices d'encre formés dans celle-ci. Lors de l'impression, des gouttes d'encre sont éjectées par les orifices d'encre dans une zone d'impression entre la tête d'impression et un support d'impression, avec une trajectoire voulue des gouttes d'encre vers le support d'impression. Un système de circulation d'air dirige un flux d'air sur la zone d'impression sensiblement parallèlement à la trajectoire voulue des gouttes d'encre à mesure que ces dernières sont éjectées pendant l'impression, de manière à affecter des courants d'air agissant sur les gouttes d'encre pendant l'impression et empêcher des défauts d'impression provoqués par les courants d'air. Toutefois, le flux d'air n'interrompt pas la trajectoire voulue des gouttes d'encre pendant l'impression.

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