| 摘要 |
An ink jet application device comprises an application head, an information storage, a first converter, a second converter, a third converter, a three-terminal regulator and a switching circuit. The application head has a plurality of nozzles and a plurality of actuators respectively mounted to the nozzles, and sprays ink from a nozzle by applying a voltage to an actuator. The information storage stores a specific volume of an ink-droplet, characteristic information for relating a volume of the ink-droplet to a voltage value to be applied to the actuator, and setting information for relating a voltage value to be applied to the actuator to a DA setting value. The first converter obtains a volume of the ink-droplet sprayed from a nozzle which is a voltage correcting object, calculates a voltage value related to the volume of the ink-droplet with reference to the characteristic information, and calculates a voltage difference value between the calculated voltage value and a voltage value related to a specific volume of the ink-droplet. The second converter converts the voltage difference value into a DA setting value with reference to the setting information. The third converter converts the DA setting value into an analog signal. The three-terminal regulator outputs a correction voltage when the analog signal is input thereto as a reference voltage. The switching circuit supplies the correction voltage to the actuator mounted to the nozzle which is the voltage correcting object.
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