| 摘要 |
PURPOSE:To efficiently, dehumidify the periphery of the electrode of a device, to reduce the power consumption, and to perform uniform and stable discharging by providing the discharging device with a humidity detecting means and controlling a heat generating body according to the output of this humidity detecting means. CONSTITUTION:When an AC voltage above is specific discharging start voltage is applied between embedded electrodes 11 and 12 from an AC power source 14, discharging is carried out in a single area 15 around a part facing the periphery of the part between the electrodes on the bottom surface of the discharging device 1 to generate positive and negative ions alternately. A bare electrode 13, on the other hand, is applied with a bias voltage by a bias power source 19, so ions having a desired polarity are extracted toward a member 2 to be charged electrostatically, so the member 2 is charged electrostatically. A microcomputer 22 supplies electric power to the heater 21 when the value of a current inputted from a humidity sensor 23 varies exceeding a recording current value recorded in the microcomputer to raise the temperature of a dielectric 10, there removing moisture around the discharging device.
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