Inkjet printhead having isolated nozzles

Details Inkjet printhead having isolated nozzles Inkjet printhead having isolated nozzles

B - Operations, Transporting

41

J

B41J 2/14 (2006.01)

Patent

CA 2592267

A printhead suitable for minimizing cross-contamination between nozzles (3) is provided. The printhead comprises a substrate (8), which includes a plurality of nozzles (3) for ejecting ink droplets onto a print medium. Each nozzle (3) has a nozzle aperture (5), which is defined in an ink ejection surface of the substrate (8). The printhead also comprises a plurality of formations on the ink ejection surface. The surface formations are configured to isolate each nozzle (3) from at least one adjacent nozzle (3), and typically take the form of enclosure (60) surrounding each nozzle (3).

La présente invention concerne une tête d'impression appropriée pour minimiser la contamination croisée entre des buses (3). La tête d'impression comprend un substrat (8), qui comprend une pluralité de buses (3) destinées à éjecter des gouttelettes d'encre sur un support d'impression. Chaque buse (3) comporte une ouverture de buse (5) qui est définie dans une surface d'éjection d'encre du substrat (8). La tête d'impression comprend également une pluralité de formations sur la surface d'éjection d'encre. Les formations de surface sont configurées pour isoler chaque buse (3) par rapport à au moins une buse adjacente (3) et prennent en général la forme d'espace fermé (60) entourant chaque buse (3).

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