Patent ID: 8887956

Claim:
A liquid supply device comprising: a container that includes a sealing film and is filled with a liquid; a pedestal on which the container is set; a detector that detects whether the container is set on the pedestal or not; a boring part that bores the sealing film of the container when the boring part is inserted into the container to discharge the liquid from the container and supply the liquid to a supply destination; an operation lever that is connected to the boring part and operates the boring part so that the boring part is pulled out and inserted into the container; a fixing member that locks the operation lever when the boring part is inserted into the container; and a coupling portion that is installed in the container and is coupled with the operation lever when the operation lever is moved to the position where the boring part is inserted into the container to prevent the boring part from slipping from the container; wherein the boring part is pulled out and inserted into the container set on the pedestal, the fixing member locks the operation lever in a state where the boring part is inserted into the container, and the fixing member locks the operation lever when the detector detects that the container is not set on the pedestal in a state where the boring part is pulled out of the container.