Liquid discharge apparatus and control method thereof

A method for controlling a liquid discharge apparatus that has

• a liquid discharge head having a discharge port for discharging a liquid, a liquid chamber configured to communicate with the discharge port, a heat generating resistor provided in the liquid chamber and configured to being capable, by generating heat, of discharging the liquid from the discharge port, and a first electrode and a second electrode provided in the liquid chamber;
• and a control unit, such that with the liquid chamber viewed from a direction in which the discharge port is provided, the first electrode is provided so as to overlap a position at which the heat generating resistor is provided, and the second electrode is provided so as not to overlap a position at which the first electrode is provided;
• the method comprising a step of controlling, by way of the control unit, application of potential to the first electrode and the second electrode, on the basis of a potential control condition according to the type of the liquid,
• wherein the control unit is configured to modify the potential control condition in accordance with changes in physical properties of the liquid.