Patent ID: 8328305

Claim:
A liquid ejecting apparatus comprising: a liquid ejecting head configured to eject liquid; a liquid container configured to store liquid therein, and configured to be in fluid communication with the liquid ejecting head; a detector configured to detect an amount of liquid stored in the liquid container, wherein the detector is configured to be in a first state when the amount of liquid stored in the liquid container is greater than a first threshold amount, and to be in a second state when the amount of liquid stored in the liquid container is less than or equal to the first threshold amount; an estimator configured to estimate the amount of liquid stored in the liquid container based on an amount of liquid consumed by the liquid ejecting head; and a determiner configured to determine: (a) whether a state of the detector has changed from the first state to the second state; (b) whether an amount of liquid estimated by the estimator has become less than or equal to a second threshold amount, which is less than the first threshold amount; (c) that, if it is determined that the state of the detector has changed from the first state to the second state, the liquid container has become a low-amount state, in which the amount of liquid stored in the liquid container is low; and (d) that, if it is not determined that the state of the detector has changed from the first state to the second state, but it is determined that the amount of liquid estimated by the estimator has become less than or equal to the second threshold amount, the liquid container has become the low-amount state.