Liquid discharge detection method and apparatus and ink-jet printer apparatus
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United States of America Patent
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Feb 7, 2006
Issued Date -
N/A
app pub date -
Jun 9, 2004
filing date -
Dec 27, 2001
priority date (Note) -
Expired
status (Latency Note)
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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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