An ink tank includes: a first liquid storage chamber; a second liquid storage chamber; a detector having at least two electrode rods in the first liquid storage chamber; an injector having an opening supplying liquid to the first liquid storage chamber; an atmospheric communication passage communicating an outside of the ink tank with the second liquid storage chamber; a cap movable between an open position and a closed position with respect to the injector and configured to seal the first liquid storage chamber; a valve mechanism opening or closing the communication passage by moving up and down with respect to the communication passage; a link mechanism moving the valve mechanism up and down; and a guide portion guiding the valve mechanism, at least a part of the guide portion being provided in the valve mechanism.

An ink refill container includes a bottle and a cap. The bottle includes: an ink outlet forming portion having an ink outlet and an outer peripheral portion with a first screw thread; and a valve with a valve member in the ink outlet. The cap includes: a trunk having a second screw thread engageable with the first screw thread; a top portion; and a projection. The projection is configured to move and push the valve member to open the valve member when the cap is rotated in a first direction in which engagement between the first screw thread and second screw thread is cancelled. The projection is configured to relatively rotate in the first direction and move away from the valve member to close the valve member when the cap is rotated in a second direction in which the first screw thread engages with the second screw thread.

A liquid storage container includes: a discharge port member including a discharge port through which liquid stored in a storage portion is discharged; a cover portion configured to be attachable to the discharge port member and to be capable of opening and closing the discharge port; and a sealing portion formed of a contact portion between the cover portion and the discharge port member. The cover portion includes a groove structure between an outer periphery of the cover portion and the sealing portion.

A liquid storage container includes: a discharge port member including a discharge port through which liquid stored in a storage portion is discharged and a coupling portion in which a male thread portion is arranged on the outside; and a cover portion including a female thread portion on the inside and configured to be attachable to the discharge port member, the female thread portion configured to be screwed to the male thread portion, in which the male thread portion is discontinuous in the coupling portion.

In one example in accordance with the present disclosure, a spout for a print liquid reservoir is described. The spout includes a sleeve having an opening through which print liquid passes. A first flange extends outward from the sleeve to affix the spout to the print liquid reservoir. A second flange extends outward from the sleeve to sit on a wall a container in which the print liquid reservoir is disposed. The spout also includes an angled clamp flange having an angled surface and a straight surface opposite the angled surface. The angled clamp flange is to affix the spout to the container.

An ink accommodation body capable of accommodating a sublimation transfer ink injected, via an injection port from, a bottle accommodating the sublimation transfer ink, and a first cover having a cap capable of closing the injection port, and movable between a closing position at which the cap closes the injection port and an opening position at which the cap opens the injection port, are included, and the cap can be inserted into and pulled out of the injection port in an opening direction of the injection port when the first cover moves between the closing position and the opening position, and the first cover has a finger-hooking portion enabling insertion and pulling of the cap with a finger.

An ink tank that enables to check whether a cover of an ink tank is normally bonded to the ink tank includes a first chamber having a supply port for supplying ink to a printing head that ejects ink, a second chamber having an external air introduction port capable of introducing external air, a partition wall configured to separate the first chamber and the second chamber, a communication path provided in the partition wall and configured to place the first chamber and the second chamber in communication with each other, a first cover member configured to cover an opening of the first chamber without extending over an opening of the second chamber, and a second cover member configured to cover the opening of the second chamber without extending over the opening of the first chamber.

A liquid cartridge includes: a cartridge casing having a liquid storage chamber; a first wall; a second wall; and an air communication passage. The first wall is positioned upward relative to the liquid storage chamber. The second wall is positioned upward relative to the first wall. The air communication passage has a first communication hole in communication with the liquid storage chamber and a communication opening open to an atmosphere. The air communication passage includes: an air chamber defined by the first wall and the second wall and in communication with the liquid storage chamber through the first communication hole; a second communication hole formed in the second wall; and a labyrinth path. The labyrinth path is positioned upward relative to the air chamber, and has one end in communication with the second communication hole and another end in communication with the communication opening.

An ink refill container includes a container main body including an ink storage chamber, an ink outlet-forming portion provided on an end portion of the container main body forming an ink outlet that allows the ink to flow out from the ink storage chamber, and a valve provided in the ink outlet-forming portion configured to openably seal the ink outlet, in which the ink outlet-forming portion includes a positioning portion on an outer side of the ink outlet-forming portion. in which the positioning portion is closer to the container main body than the valve is to the container main body in a central axis direction of the ink outlet, and in which the positioning portion partially abuts against an ink tank when the valve is opened for refilling the ink to the ink tank, to thereby position the valve relative to the ink tank.

A liquid storage container includes: a discharge port member including a discharge port through which liquid stored in a storage portion is discharged; a cover portion configured to be attachable to and detachable from the discharge port member and to be capable of opening and closing the discharge port; a liquid stop valve provided inside the discharge port member; and a protrusion provided inside the cover portion and configured to open the liquid stop valve in closing the cover portion. In the liquid storage container, the storage portion is sealable by at least one of a first sealing portion formed of a contact portion between the cover portion and the discharge port member and a second sealing portion formed of the liquid stop valve, and the first sealing portion and the second sealing portion are configured to be simultaneously unsealed.