Patent ID: 8579423

Claim:
A liquid supply apparatus which supplies a liquid to a liquid ejecting head from a liquid accommodating unit comprising: a plurality of rotating type pumps which are respectively provided in the middle of each of a plurality of supply paths which connects a plurality of the liquid accommodating units and the liquid ejecting head; a common power source which drives the plurality of pumps; and a power transmission adjusting unit which adjusts power which is transmitted from the power source to each pump and by which when a load that the pump receives due to the liquid pressure in a discharge flow path of the supply path which discharges the liquid from the pump is equal to or less than a connection limit, the power source and the pump are connected to transmit the power from the power source to the pump and when the load exceeds the connection limit, a slip occurs in the connection for transmitting the power from the power source to the pump so that the power transmission is shut off or the transmitted power is reduced.