Electrostatic coating handgun and electrostatic coating method

An electrostatic coating method in which electrically charged atomized paint is sprayed onto an object to be coated, the electrostatic coating method comprising:

• preparing an electrostatic coating handgun, the electrostatic coating handgun including a rotating head having on a tip end of the rotating head a groove through which the paint is discharged, a motor configured to apply rotational power to the rotating head, a high voltage generator configured to apply a voltage to the paint, a housing supporting the rotating head with the tip end of the rotating head being exposed, and housing the motor and the high voltage generator, and a grip portion to be held by an operator;
• and
• reducing an output voltage of the high voltage generator by a voltage control device and reducing a rotational speed of the motor by a motor control device when a current value discharged from the rotating head increases due to movement of the rotating head caused by an operation by the operator when the operator sprays the paint onto the object to be coated by using the electrostatic coating handgun.