Ink jet head manufacturing device, ink jet head...

Incremental printing of symbolic information – Ink jet – Ejector mechanism

Reexamination Certificate

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Reexamination Certificate

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07914126

ABSTRACT:
In an ink jet head manufacturing device, first and second diodes are arranged on a path extending from a gate of a control unit to an individual electrode of an ink-pressure control part in an ink jet head, the first diode allowing a current from the individual electrode of the ink-pressure control part to flow into a first wiring, and the second diode allowing a current from a second wiring to flow into the individual electrode of the ink-pressure control part. A short-circuit unit is arranged to short-circuit the first wiring and the second wiring when depolarization or polarization of the ink-pressure control part is performed.

REFERENCES:
patent: 6732414 (2004-05-01), Kitahara
patent: 7222942 (2007-05-01), Kawamura
patent: 2006/0268072 (2006-11-01), Yamada et al.
patent: 2007/0132813 (2007-06-01), Yamada et al.
patent: 2007/0222822 (2007-09-01), Ito
patent: 2008/0088672 (2008-04-01), Kobayashi
patent: 2008/0111859 (2008-05-01), Kondo
patent: 2008/0291232 (2008-11-01), Yamada et al.
patent: 2008/0316280 (2008-12-01), Yamada et al.
patent: 2001-277525 (2001-10-01), None
patent: 2003-055045 (2003-02-01), None
patent: 2006-315326 (2006-11-01), None
patent: 3879721 (2006-11-01), None
patent: 2007-160701 (2007-06-01), None
patent: 2008-200977 (2008-09-01), None
patent: 2009-000864 (2009-01-01), None
“Piezoelectric Ceramic Technical Handbook”, p. 52, in Dec. 2007.
“Nikkei Electronics” No. 635, p. 95, issued on May 8, 1995.

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