Patent ID: 7357478
Filing Date: 2008-04-15
Classification: B41J

Abstract:
1. A method for controlling a liquid ejection apparatus that supplies liquid stored in a tank to a liquid ejection head arranged on a carriage by applying pressurized gas pressure to the tank, the method comprising: performing a pressurization sequence for operating a gas pressurization pump when the pressurized gas pressure applied to the tank decreases and for stopping the operation of the gas pressurization pump when the pressurized gas pressure increases; selectively setting a drive control mode and a power save control mode, wherein the drive control mode supplies the liquid from the tank to the liquid ejection head by applying the pressurized gas pressure to the tank through the pressurization sequence, and the power saving control mode consumes less power than the drive control mode; and shifting to the power saving control mode when a predetermined time elapses after the drive control mode ends and stops operating the gas pressurization pump, without the gas pressurization pump being operated by the pressurization sequence until the predetermined time elapses.