| 摘要 |
The invention provides a technique for suppressing liquid leakage from a tank.;An ink tank 25A includes an ink containing portion 100. In a state in which the ink containing portion 100 contains an ink in an amount equal to ½of its ink capacity, when the ink tank 25A is brought into an ink injection orientation, the first atmospheric air introducing inlet 114 is located in a region where the air is present, and the second atmospheric air introducing inlet 124 is located in a region where the ink is present. When the ink tank 25A is rotated upside down by 180° from that orientation and brought into a reversed orientation, the first atmospheric air introducing inlet 114 is located in a region where the ink is present, and the second atmospheric air introducing inlet 124 is located in a region where the air is present. |
| 主权项 |
1. A tank capable of supplying a liquid to a liquid ejection head, the tank comprising:
a liquid containing portion capable of containing the liquid; an atmospheric air introducing portion capable of introducing outside atmospheric air into the liquid containing portion; a liquid injection portion capable of injecting the liquid into the liquid containing portion from outside; and a sealing member detachably attached to the liquid injection portion, wherein the atmospheric air introducing portion includes a first atmospheric air communication portion and a second atmospheric air communication portion that communicate with the liquid containing portion, the first atmospheric air communication portion includes a first atmospheric air introducing inlet that is open to the liquid containing portion, the second atmospheric air communication portion includes a second atmospheric air introducing inlet that is open to the liquid containing portion, and in a state in which the liquid containing portion contains the air and the liquid in an amount occupying ½ of a capacity of the liquid of the liquid containing portion, (i) when the tank is in a liquid injecting orientation, which is an orientation when the liquid is injected from the liquid injection portion, the first atmospheric air introducing inlet is located in a region where the air is present, and the second atmospheric air introducing inlet is located in a region where the liquid is present, and (ii) when the tank is in a reversed orientation in which the tank has been rotated upside down by 180° from the liquid injecting orientation, the first atmospheric air introducing inlet is located in a region where the liquid is present, and the second atmospheric air introducing inlet is located in a region where the air is present. |
