Abstract: An object is to provide a technique that maintains good contact between apparatus-side terminals and contact portions in a second cartridge configured to contain multiple different types of inks. In the cartridge, a center contact portion provided on center in an X direction among a plurality of contact portions is arranged to intersect with a first center plane. Part of the plurality of contact portions is placed in a range where a cartridge-side engagement portion is located, in the X direction. An engagement center is provided between the first center plane and a second center plane.

Abstract: An object is to suppress reduction of the stability of electrical connection between a liquid ejection apparatus and a liquid supply unit. A liquid supply unit (20) configured to be mountable to a liquid ejection apparatus (50) that has a first electrode (930a) and a second electrode (930b) comprises a first contact portion (cpb) configured to be in contact with the first electrode (930a) in a state that the liquid supply unit (20) is mounted to the liquid ejection apparatus (50); a second contact portion (cpb) configured to be in contact with the second electrode (930b) in the state that the liquid supply unit is mounted to the liquid ejection apparatus (50); and a wall portion (40) configured such that the first contact portion (cpb) and the second contact portion (cpb) are placed therein.

Abstract: Provided is a highly-convenient ink replenishment container. The ink replenishment container includes: a container main body portion capable of containing the ink; and an ink outlet forming portion that is to be attached to an end portion of the container main body portion and at which an ink outlet through which the ink flows out is formed. In a region located outside of the ink outlet, the ink replenishment container includes an erroneous insertion prevention portion that protrudes relative to the ink outlet in a direction opposite to the container main body portion in an axial direction as an axial center, and is configured to be inserted into a recessed portion and to prevent erroneous insertion into the ink tank. The erroneous insertion prevention portion includes protrusions that can be attached and detached, the protrusions are attached and detached in accordance with the shape of the recessed portion.

Abstract: An ink refill container is configured to refill an ink tank that is in communication with an ink ejection head with ink. The ink refill container includes an ink container body configured to contain the ink, a spout including an ink outlet that allows ink to flow out of the ink container body, a cap attached to the spout, and an ink absorbent arranged on the cap to absorb ink existing between the spout and the cap in a state in which the cap is attached to the spout.

Abstract: An ink jet recording apparatus that prints using an ink jet head is provided. The apparatus includes an ink tube that is connected to the ink jet head and an ink tank that is provided separately from the main body of the apparatus. The apparatus includes a tube support member that supports the ink tube. The tube support member includes a first tube support member that forms a tube guide and a second tube support member that is located at a side of the ink tank.

Abstract: A liquid supply unit includes an outer shell, a liquid supply portion that is arranged in the outer shell and can supply a liquid to the liquid ejection apparatus, and an engaged structure including an engaged portion that can engage with the engagement portion of the liquid ejection apparatus, and a first opening that is formed in the outer shell and through which the engagement structure can be inserted. The engaged portion is arranged further inward than an outer surface of the outer shell.

Abstract: A liquid supply unit that includes a liquid ejection apparatus and configured to be mounted onto a holder unit that has a liquid introducing needle that extends in a first direction includes an outer shell, a liquid supply port, and an engagement structure including a first engagement portion, in which the first engagement portion is disposed on a mounting direction side of the outer shell at a position that overlaps with the outer shell when the liquid supply unit is viewed from the demounting direction side.

Abstract: An object is to identify an abnormal mounted state of a liquid supply unit to a liquid ejection apparatus. There is provided a liquid supply unit configured to supply a liquid to a liquid ejection apparatus that comprises a first electrode assembly including a first electrode and a second electrode; an engagement structure; and a mounting structure which the liquid supply unit is mounted to. The liquid supply unit comprises a liquid supply portion; an engaged structure configured to be engaged with the engagement structure in a mounted state and thereby restrict a motion of the liquid supply unit in a first direction that is a direction of dismounting the liquid supply unit; and an electrically conductive portion provided in the engaged structure.

Abstract: A liquid container into which ink is injected comprises a liquid container body configured to contain a liquid therein; and a liquid supply assembly located on one end portion of the liquid container body. The liquid supply assembly has a liquid supply port provided to supply the liquid to a liquid consuming apparatus. The liquid supply port is formed to face in an intersecting direction that intersects with the direction of gravity and to be protruded in the intersecting direction from the one end portion when the liquid supply assembly is supported such as to be located above the liquid container body in the direction of gravity. A liquid injection member is inserted into the liquid supply port, and the liquid is injected into the liquid container body. The liquid supply port is then arranged to be protruded in the intersecting direction, and the liquid injection member is detached from the liquid supply port.

Abstract: A liquid supply unit is provided with a liquid supply part, an outer peripheral wall, contact portions and a positioning portion.

Abstract: A liquid supply unit includes a first wall part to a seventh wall part. The first wall part includes a liquid supply part and an outer peripheral wall surrounding the liquid supply part and protruding in a direction from the second wall part toward the first wall part so as to come into contact with a sealing member of a carriage. The liquid supply part has a filter for supplying liquid to a liquid introduction part upon coming into contact with the liquid introduction part. A distance between the third wall part and the fourth wall part is larger than a distance between the fifth wall part and the sixth wall part. In a plan view in a direction from the first wall part toward the second wall part, a length of the outer peripheral wall in a first direction from the third wall part toward the fourth wall part is larger than a length in a second direction from the fifth wall part toward the sixth wall part.

Abstract: At least one of making an ink replenishing operation easy and making it possible to select one out of a plurality of types of ink replenishment containers in order to perform ink replenishment is achieved. An ink replenishment assist apparatus includes a plug detachably mounted to the ink inlet of an ink tank and a conduit. The conduit has a first opening open to the inside of the ink tank in an in-use state of the ink replenishment assist apparatus, a second opening positioned on an opposite side to the first opening, and open to the outside of the ink tank, and a channel that brings the first opening and the second opening into communication with each other.

Abstract: A printer comprises a main body cover configured to change over a state between a closed state and an open state; a tank including an ink container portion configured to contain ink and an ink inlet configured to inject the ink; a tank cover configured to change over a state between a closed state and an open state; and an ink bottle including a container portion and a delivery portion. In the open state of both the main body cover and the tank cover, the ink bottle is self-supported and configured to deliver the ink from the delivery portion of the ink bottle to the ink inlet. A space is formed between the main body cover and the ink bottle when the ink bottle is self-supported. At least part of the ink bottle is located in a locus drawn by the main body cover during rotation.

Abstract: The structure of an ink supplying container is improved. The ink supplying container includes a container body that contains ink and an ink outlet formation portion that is mounted on the leading end side of the container body, and forms an ink outlet. The ink outlet formation portion includes a tubular channel portion that forms a supplying channel into which an ink inlet channel member of an ink tank is inserted and an outlet valve unit accommodated in the tubular channel portion. The outlet valve unit is configured such that, (i) in a non-supplying state, the ink outlet is sealed, and (ii) in a supplying state, the supplying channel of an annular channel portion is in communication with an ink inlet channel of the ink inlet channel member, in the tubular channel portion.

Abstract: Convenience of an ink bottle and a bottle set is improved. An ink bottle includes: a container portion that contains ink; a guiding portion that is formed in one end portion of the container portion, and includes an outflow port from which the ink in the container portion flow out; and a cover that covers at least an end portion of the container portion on the opposite side of the guiding portion.

Abstract: A liquid supply unit is provided with a liquid supply part, an outer peripheral wall, contact portions and a positioning portion.

Abstract: A liquid container comprises a liquid supply port provided in a bottom wall, a first chamber configured to contain a liquid, a second chamber configured to contain the liquid and to include at least one sub-chamber having a smaller dimension in the X direction than that of the first chamber, a partition wall configured to part the first chamber from the second chamber, and a connecting hole configured to connect the first chamber with the second chamber. The second chamber is connected with the liquid supply port, and the first chamber is connected with the liquid supply port via the connecting hole and the second chamber. The liquid contained in the first chamber is flowed from the connecting hole into the second chamber and is subsequently introduced through the sub-chamber to the liquid supply port.

Abstract: A tube support member that puts a tube connected to an ink jet head and an ink tank in a bent state is provided. Accordingly, when a pulling force acts between the bent support member and the tube, a component force acting as contact force occurs at the surface that makes contact with the tube, and a high degree of friction is generated in response to this component force. The tube is thus strongly supported in a state in which the tube does not shift with the dimensions of the tube changing. Meanwhile, when the pulling force is released, the component force is also eliminated, and the tube is freed; the dimensions of the tube return to normal, and the tension is eliminated. An ink jet recording apparatus that prints using an ink jet head is provided. The apparatus includes an ink tube that is connected to the ink jet head and an ink tank that is provided separately from the main body of the apparatus. The apparatus includes a tube support member that supports the ink tube.