Ink jet head having channel damper and method of fabricating...

Details Ink jet head having channel damper and method of fabricating... Ink jet head having channel damper and method of fabricating...

2008-05-27

2008-05-27

Stephens, Juanita D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S067000, C347S094000

Reexamination Certificate

active

11153497

ABSTRACT:
An ink jet head having a channel damper, and a method of fabricating the same. The ink jet head includes a heat-generating resistor disposed on a substrate to generate pressure for ink ejection, a chamber layer disposed on the substrate to enclose the heat-generating resistor and having a first height from the substrate in order to provide at least one opened portion, and a channel damper disposed at the opened portion to completely enclose the heat-generating resistor together with the chamber layer and having a second height lower than the first height is disposed at the opened portion. A nozzle layer having a nozzle corresponding to the heat-generating resistor is disposed to be in contact with an upper surface of the chamber layer.

REFERENCES:
patent: 4794410 (1988-12-01), Taub et al.
patent: 4882595 (1989-11-01), Trueba et al.
patent: 5412413 (1995-05-01), Sekiya et al.
patent: 5635966 (1997-06-01), Keefe et al.
patent: 6626522 (2003-09-01), Rapp et al.
patent: 0314486 (1989-05-01), None
patent: 1426187 (2004-06-01), None
European Search Report dated Mar. 30, 2007 issued in EP 05253859.2.

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