Ink-jet printer and head for the same

Incremental printing of symbolic information – Ink jet – Ejector mechanism

Reexamination Certificate

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C347S068000

Reexamination Certificate

active

07735979

ABSTRACT:
A cavity unit of an ink-jet printer head includes elongated pressure chambers, a manifold, and communicating channels between pressure chambers and the manifold. Each of the communicating channels has a first straight portion and a second straight portion which are recesses extending in a longitudinal direction of the pressure chambers, and a bent portion which communicates the first straight portions and the second straight portions. In a plan view, each of the communicating channels overlaps entirely with a pressure chamber communicating with the communicating channel. Accordingly, there is provided an ink-jet printer head having a substantial throttle resistance and a long communicating channel, in which there is no effect of a cross-talk between the pressure chambers.

REFERENCES:
patent: 6206501 (2001-03-01), Ishii et al.
patent: 6406135 (2002-06-01), Watanabe et al.
patent: 2001 30483 (2001-02-01), None

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