Patent ID: 8186802

Claim:
A liquid ejection device, comprising: a liquid ejection head configured to eject liquid; a cartridge mounting portion configured to removably mount thereon a liquid cartridge configured to contain liquid therein, and configured to supply liquid from the liquid cartridge mounted on the cartridge mounting portion to the liquid ejection head, wherein the cartridge mounting portion is configured to selectively mount an initial-type liquid cartridge that contains a first initial amount of liquid, a partial amount of which is to be initially introduced to the liquid ejection head before the liquid ejection device is initially used, and a replacement-type liquid cartridge that contains a second initial amount of liquid, wherein the second initial amount is less than the first initial amount; and a controller configured to perform: a cartridge mounting determination in which it is determined whether a mounting action of the liquid cartridge to the cartridge mounting portion has occurred; a cartridge type determination in which it is determined whether the liquid cartridge mounted by the mounting action is the initial-type liquid cartridge or the replacement-type liquid cartridge; and an initial introduction determination in which it is determined whether liquid has been initially introduced to the liquid ejection head; wherein when the controller determines that the mounting action has occurred and the liquid cartridge mounted by the mounting action is the initial-type liquid cartridge after liquid has been initially introduced to the liquid ejection head, the controller prevents the initial-type liquid cartridge from being used or gives warning.