Ink-jet head and recording apparatus

Details Ink-jet head and recording apparatus Ink-jet head and recording apparatus

2005-06-14

2005-06-14

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

Reexamination Certificate

active

06905202

ABSTRACT:
The ink-jet head of this invention includes a nozzle plate in which a nozzle is formed; a pressure chamber part in which a pressure chamber charged with an ink is formed; an ink passage part in which an ink supplying passage for supplying the ink to the pressure chamber is formed; a piezoelectric actuator for applying a pressure to the pressure chamber for discharging the ink from the nozzle; a damper wall for separating the ink supplying passage from an air chamber; and a communicating hole for communicating the air chamber with the atmospheric air.

REFERENCES:
patent: 5943079 (1999-08-01), Yoshida
patent: 5963234 (1999-10-01), Miyazawa et al.
patent: 5984459 (1999-11-01), Takahashi et al.
patent: 6142616 (2000-11-01), Akahane
patent: 6332672 (2001-12-01), Yazaki et al.
patent: 6361155 (2002-03-01), Kanda et al.
patent: 6502930 (2003-01-01), Shimada et al.
patent: 9-314836 (1997-12-01), None
patent: 2001-63052 (2001-03-01), None

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