| 摘要 |
A liquid supply device includes a liquid cartridge having a liquid chamber that stores a liquid, a cartridge mounting portion, and a level detector that detects a position of a liquid surface of the liquid stored in the liquid chamber. The position of the liquid surface of the liquid is detected to be at one of at least three liquid surface levels. The liquid supply device also includes a determiner that determines that the liquid supply device is in an abnormal state when the position of the liquid surface of the liquid moves up by two or more liquid surface levels and determines that the liquid supply device is not in the abnormal state when the liquid surface of the liquid moves up by one or fewer liquid surface level. |
