| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve nozzle detection accuracy without complicating a device configuration. Ž<P>SOLUTION: The nozzle inspection device 50 includes: a voltage detection circuit 56 that detects a voltage; a connection change switch SW1 connected to the electrodes 52a to 52d of a cap 41 and the voltage detection circuit 56; and a high voltage power source Ve connected to a point Q between the connection change switch SW1 and the voltage detection circuit 56, via a resistor R1 and a change switch SW2. To carry out nozzle inspection, the connection change switch SW1 is switched to electrically connect the voltage detection circuit 56 and one of the electrodes 52a to 52d, which is disposed in a box able to receive a fluid ejected from an inspection target nozzle. With a predetermined voltage applied to the electrode, ink is ejected from the inspection target nozzle. Then, it is determined whether a voltage value Vout detected by the voltage detection circuit 56 is equal to or greater than a threshold Vref, thereby determining whether the ink is ejected. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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