Inkjet printing with air current disruption

Details Inkjet printing with air current disruption Inkjet printing with air current disruption

B - Operations, Transporting

41

J

B41J 2/05 (2006.01) B41J 2/11 (2006.01) B41J 29/393 (2006.01)

Patent

CA 2409481

An inkjet printer (10/210) includes a printhead (34/234) having a plurality of ink orifices (36/236) formed therein. During printing, ink drops (38/238) are ejected through the ink orifices into a print zone (15/215) between the printhead and a print medium (12/212). An air current disruption system (40/40'/40''/140/240) directs an air stream (42/42'/142/242) through the print zone as the ink drops are ejected so as to disrupt air currents (43/43'/143/243) acting on the ink drops during printing and prevent print defects caused by the air currents. The air stream, however, does not disrupt an intended trajectory of the ink drops during printing.

L'invention concerne un imprimante à jet d'encre (10/210) comprenant une tête d'impression (34/234) dotée d'une pluralité d'orifices à encre (36/236) ménagés sur celle-ci. Pendant une impression, des gouttes d'encre (38/238) sont éjectées par l'intermédiaire des orifices à encre dans une zone d'impression (15/215) entre la tête d'impression et un support d'impression (12/212). Un système d'interruption de courant d'air (40/40'/40''/140/240) dirige un flux d'air (42/42'/142/242) à travers la zone d'impression lorsque les gouttes d'encre sont éjectées de manière à interrompre les courants d'air (43/43'/143/243) agissant sur les gouttes d'encre pendant l'impression et à prévenir les défauts d'impression provoqués par les courants d'air. Toutefois, ce flux d'air ne modifie pas la trajectoire prévue des gouttes d'encre pendant l'impression.

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