Ink-jet head

Details Ink-jet head Ink-jet head

2005-11-29

2005-11-29

Stephens, Juanita D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S040000

Reexamination Certificate

active

06969158

ABSTRACT:
An ink-jet head comprises a passage unit with pressure chambers formed therein, and actuator units for changing the volume of each pressure chamber. In the passage unit, a plurality of cavity recesses each communicating with both a nozzle for ejecting ink and a common ink chamber and each constituting a cavity of the pressure chamber are arranged in a matrix. Further in the passage unit, formed are a plurality of peripheral recesses arranged along a whole periphery of the cavity recesses. The actuator unit closes openings of the cavity recesses to define a plurality of pressure chambers with the passage unit, and changes the volume of each pressure chamber.

REFERENCES:
patent: 5512793 (1996-04-01), Takeuchi et al.
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patent: 0 666 605 (1995-08-01), None
patent: 1 138 493 (2001-10-01), None
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patent: A 7-214779 (1995-08-01), None
patent: A 2000-334943 (2000-12-01), None
patent: A 2002-86715 (2002-03-01), None

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