Patent ID: 8668315
Filing Date: 2014-03-11
Classification: B41J

Abstract:
1. A liquid ejecting apparatus comprising: a main tank configured to store the liquid; a sub tank having an atmosphere-communicating hole formed therein, and configured to store temporarily the liquid supplied from the main tank; a liquid ejecting head having a plurality of nozzles for ejecting the liquid supplied from the main tank; a first supply channel member having a first liquid supply channel communicating between the main tank and the sub tank; a second supply channel member having a second liquid supply channel communicating between the sub tank and the liquid ejecting head; and a pump device provided to the first liquid supply channel, and configured to supply the liquid in the main tank to the sub tank, wherein the first liquid supply channel includes an upstream-side supply channel arranged toward a main-tank side of the pump device, and a downstream-side supply channel arranged toward a sub-tank side of the pump device, the pump device includes a first chamber in which a first chamber inlet and a first chamber outlet are formed, a second chamber in which a second chamber inlet and a second chamber outlet are formed, and a transfer-force applying section which is configured to apply a transfer force for transferring a liquid inside the first chamber to the second chamber, the first chamber inlet is connected to a downstream-side end portion of the upstream-side supply channel, the first chamber outlet and the second chamber inlet are connected to the transfer-force applying section, the second chamber outlet is connected to an upstream-side end portion of the downstream-side supply channel, the first chamber outlet is provided to an upper-end portion of the first chamber, in a vertical direction, and the second chamber outlet is provided to an upper-end portion of the second chamber, in the vertical direction.