Liquid discharge detection method and apparatus and ink-jet...

Details Liquid discharge detection method and apparatus and ink-jet... Liquid discharge detection method and apparatus and ink-jet...

2006-02-07

2006-02-07

Nguyen, Lamson (Department: 2861)

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Reexamination Certificate

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06994417

ABSTRACT:
In a liquid discharge detection method and apparatus which detect a liquid discharged from a liquid discharge head, an electrode is placed at a position where the liquid discharged from the liquid discharge head comes into contact with the electrode while being in contact with the head. When a liquid is discharged, and the head is connected to the electrode through the liquid, the circuit becomes a closed circuit. A voltage generated between the two ends of a resistor is obtained from a current flowing in the closed circuit. When this voltage becomes equal to or higher than a predetermined voltage, liquid discharge can be detected.

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