Substrate for ink jet head, ink jet head, and ink jet...

Incremental printing of symbolic information – Ink jet – Ejector mechanism

Reexamination Certificate

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Reexamination Certificate

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06945629

ABSTRACT:
In a substrate for an ink jet head used for an ink jet head recording apparatus, electrostatic breakdown of a diode sensor functional as a substrate temperature sensing element is prevented. A protective element is electrically connected between a diode sensor and an input/output pad for the diode sensor.

REFERENCES:
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patent: 5943070 (1999-08-01), Kamiyama et al.
patent: 6243111 (2001-06-01), Imanaka et al.
patent: 6257695 (2001-07-01), Kamiyama et al.
patent: 6357862 (2002-03-01), Ozaki et al.
patent: 6688729 (2004-02-01), Imanaka et al.
patent: 2002/0191052 (2002-12-01), Hirayama et al.

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