Abstract: There is provided a print device including a wet liquid supply unit corresponding to a wider environmental range, with a simple and inexpensive configuration. Therefore, a valve that can change the volume is provided in a flow passage between an intermediate tank and a storing unit that stores liquid and that supplies the liquid to the intermediate tank.

Abstract: A supply apparatus includes a holder for a liquid container, a link coupled to the holder, an operation handle rotatably coupled to the link, an engaging portion and a rotation restriction unit. The operation handle operate connection and disconnection of the liquid container to and from a supplying portion by rotation with respect to the link. The engaging portion maintains a connection state between the supplying portion and the liquid container by engaging with the operation handle. The unit can restrict rotation of the operation handle when the engaging portion and the operation handle are in a disengaged state.

Abstract: Provided is a liquid holding container in which waste liquid leakage is not caused even when the container is turned upside down. For this purpose, a surface of an absorber facing the rear face of a cover part is disposed apart from the cover part so as to form a space between the cover part and the absorber of a waste liquid holding container.

Abstract: An ink supply apparatus includes a first ink tank, a second ink tank, a first flow path configured to connect the first ink tank and the second ink tank, a volume change unit disposed on the first flow path, configured to be able to change an internal volume of its own, and allow ink to flow thereinto from the first flow path when the internal volume is expanded and to flow out to the first flow path when the internal volume is reduced, a first opening and closing unit disposed between the first ink tank and the volume change unit, and a second opening and closing unit disposed between the second ink tank and the volume change unit.

Abstract: A first ink tank, and a second ink tank including a first chamber having an ink inlet port and a second chamber having a sensing unit are provided. The ink inlet port is provided at a position so that a volume of the second ink tank above a second height does not become smaller than an amount of ink volume change in the second chamber when the ink volume is changed from a first height which is a height of the ink surface when a minimum volume of ink is in the second ink tank under normal usage to a second height which is a height of the ink inlet port.

Abstract: A first ink tank, and a second ink tank including a first chamber having an ink inlet port and a second chamber having a sensing unit are provided. The ink inlet port is provided at a position so that a volume of the second ink tank above a second height does not become smaller than an amount of ink volume change in the second chamber when the ink volume is changed from a first height which is a height of the ink surface when a minimum volume of ink is in the second ink tank under normal usage to a second height which is a height of the ink inlet port.

Abstract: The present invention provides an inkjet printing apparatus capable of achieving thorough stirring by producing a flow in a main tank and a sub tank. The inkjet printing apparatus includes a printing head, a main tank, and a sub tank. The apparatus includes an ink reservoir unit formed of a flexible member, disposed between the sub tank and the printing head. The ink is supplied from the sub tank to the printing head by increasing the volume of the ink reservoir unit, and air in the sub tank is sent to the main tank by reducing the volume of the ink reservoir unit.

Abstract: A printing apparatus configured to perform printing by supplying an ink from a main tank to a sub tank and ejecting the ink in the sub tank from a printing head is allowed to execute an agitating operation to appropriately eliminate sedimentation of a pigment component without being complicated in structure and increased in cost. The printing apparatus includes a diaphragm provided in an ink supply path, and a driving mechanism for driving the diaphragm to thereby change an internal volume thereof. In the ink supply path, a resistance value of a flow path from the diaphragm to the printing head is set greater than that of a flow path from the diaphragm to the sub tank. The diaphragm is driven to generate bidirectional ink flow between the diaphragm and the sub tank to eliminate pigment component sedimentation at a bottom of the sub tank.

Abstract: The present invention provides an inkjet printing apparatus capable of achieving thorough stirring by producing a flow in a main tank and a sub tank. The inkjet printing apparatus includes a printing head, a main tank, and a sub tank. The apparatus includes an ink reservoir unit formed of a flexible member, disposed between the sub tank and the printing head. The ink is supplied from the sub tank to the printing head by increasing the volume of the ink reservoir unit, and air in the sub tank is sent to the main tank by reducing the volume of the ink reservoir unit.

Abstract: An ink jet printing apparatus having reduced manufacture costs is provided. The ink jet manufacturing apparatus includes a diaphragm section configured to be able to change the volume of a subtank, and an atmosphere communication port configured to allow the interior of the subtank to communicate with the atmosphere. The ink jet printing apparatus further includes an atmosphere communication valve configured to be able to close the atmosphere communication port, and a driving mechanism configured to drive the diaphragm section and the atmosphere communication valve. The driving mechanism opens the atmosphere communication port and then reduces the volume of the diaphragm section. The driving mechanism subsequently allows the atmosphere communication valve to close the atmosphere communication port and then increases the volume of the diaphragm section. The driving mechanism thus supplies the ink accommodated in a main tank to the subtank.

Abstract: A printing apparatus configured to perform printing by supplying an ink from a main tank to a sub tank and ejecting the ink in the sub tank from a printing head is allowed to execute an agitating operation to appropriately eliminate sedimentation of a pigment component without being complicated in structure and increased in cost. The printing apparatus includes a diaphragm provided in an ink supply path, and a driving mechanism for driving the diaphragm to thereby change an internal volume thereof. In the ink supply path, a resistance value of a flow path from the diaphragm to the printing head is set greater than that of a flow path from the diaphragm to the sub tank. The diaphragm is driven to generate bidirectional ink flow between the diaphragm and the sub tank to eliminate pigment component sedimentation at a bottom of the sub tank.

Abstract: An ink jet printing apparatus reduced manufacture costs is provided. The ink jet manufacturing apparatus includes a diaphragm section configured to be able to change the volume of a subtank, and an atmosphere communication port configured to allow the interior of the subtank to communicate with the atmosphere. The ink jet printing apparatus further includes an atmosphere communication valve configured to be able to close the atmosphere communication port, and a driving mechanism configured to drive the diaphragm section and the atmosphere communication valve. The driving mechanism opens the atmosphere communication port and then reduces the volume of the diaphragm section. The driving mechanism subsequently allows the atmosphere communication valve to close the atmosphere communication port and then increases the volume of the diaphragm section. The driving mechanism thus supplies the ink accommodated in a main tank to the subtank.