Ink-jet head and head unit

Details Ink-jet head and head unit Ink-jet head and head unit

2008-09-10

2010-12-28

Nguyen, Lamson D (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S012000

Reexamination Certificate

active

07857423

ABSTRACT:
An ink-jet head includes a nozzle array including plural nozzles. The nozzle array has a first nozzle group arranged in the center thereof and second nozzle groups arranged further on outer sides than the first nozzle group. Inter-nozzle pitches of the second nozzle groups are larger than inter-nozzle pitches of the first nozzle group. A direction in which nozzles of the second nozzle group eject an ink and a direction in which nozzles of the first nozzle group eject the ink are different.

REFERENCES:
patent: 5412410 (1995-05-01), Rezanka
patent: 6065822 (2000-05-01), Sarraf
patent: 6375294 (2002-04-01), Kneezel
patent: 6779870 (2004-08-01), Watanabe et al.
patent: 6789877 (2004-09-01), Murakami et al.
patent: 6793319 (2004-09-01), Ikemoto et al.
patent: 2005/0122354 (2005-06-01), Yamane et al.
patent: 2005/0212854 (2005-09-01), Akahira et al.

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