Patent ID: 7959260

Claim:
A method for discharging liquid from a recording head comprising: preparing a recording head comprising: a first discharge port configured to discharge a liquid supplied from a liquid supply port; a second discharge port configured to discharge a liquid, an amount of which is smaller than an amount of the liquid discharged from the first discharge port; and a substrate including a first heating element corresponding to the first discharge port, a second heating element corresponding to the second discharge port and the liquid supply port, wherein a distance between the liquid supply port and the second heating element is longer than a distance between the liquid supply port and the first heating element; communicating by a bubble formed in the liquid by driving the first heating element with atmosphere, and discharging liquid from the first discharge port; and debubbling of a bubble formed in the liquid by driving the second heating element, without communicating with atmosphere, and discharging an amount of the liquid less than 2 pico liters from the second discharge port.