Liquid-ejection head and method for producing the same

Details Liquid-ejection head and method for producing the same Liquid-ejection head and method for producing the same

2006-05-17

2009-08-18

Vo, Anh T. N. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07575303

ABSTRACT:
A liquid-ejection head includes a substrate, an inlet formed through the substrate, an outlet for ejecting a liquid, a flow channel leading to the outlet, and a pressure-generating part including a pressure-generating element disposed on a surface of the substrate in the flow channel to generate pressure for ejecting the liquid. The flow channel includes a first flow channel defined above the surface of the substrate on which the pressure-generating element is disposed and a second flow channel defined on the substrate down to below the surface on which the pressure-generating element is disposed. The first and second flow channels extend from an opening of the outlet to the pressure-generating element. The second flow channel has a larger width than the first flow channel.

REFERENCES:
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patent: 7326356 (2008-02-01), Bresciani et al.
patent: 7416285 (2008-08-01), Kato et al.
patent: 10-034928 (1998-02-01), None
patent: 10-095119 (1998-04-01), None

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