Head unit, droplet ejection apparatus, method of...

Details Head unit, droplet ejection apparatus, method of... Head unit, droplet ejection apparatus, method of...

2011-08-23

2011-08-23

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S049000

Reexamination Certificate

active

08002385

ABSTRACT:
A head unit for use in a droplet ejection apparatus is provided with a plurality of droplet ejection heads for ejecting liquid material of a predetermined color onto a base as droplets. In each of the droplet ejection heads, first and second nozzle arrays are arranged in a side by side relation in a second direction and nozzles of the first nozzle array are shifted with a half pitch in a first direction perpendicular to the second direction with respect to the nozzles of the second nozzle array when viewed from the second direction. The nozzles of the first and second nozzle arrays of the first and second droplet ejection heads of the first set are arranged so as not to overlap with the nozzles of the first and second nozzle arrays of the third and fourth droplet ejection heads of the second set when viewed from the second direction.

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Human translation of JP 2004-243267 A.

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