Patent ID: 11938739
Assignee: SEIKO EPSON CORPORATION
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 11:
12. An ink refill container configured to refill ink to a printer, the printer formed with an ink storage chamber of an ink tank; a hole having a circular portion and a pair of rectangular portions continuous to and arranged on opposite sides of the circular portion; a needle in fluid communication with the ink storage chamber of the ink tank, arranged in the circular portion, and extending in a vertical direction; and a receiving surface surrounding the hole and extending in a horizontal direction intersecting the vertical direction, the ink refill container comprising:
a container main body; and
an ink outlet-forming portion connected to the container main body and having an ink outlet,
when the ink outlet is directed upward, and viewed from the ink outlet side in the vertical direction, the ink outlet-forming portion comprising:
a valve disposed in the ink outlet-forming portion and configured to be opened by the needle inserted in the ink outlet and closed by taking the ink refill container away from the needle;
a pair of horizontal surfaces provided at a position lower than a position of the ink outlet and arranged on opposite sides of the ink outlet in a first horizontal direction, each of the pair of the horizontal surfaces having end portions spaced apart with respect to each other in a second horizontal direction orthogonal to the first horizontal direction, the end portions extending in the first horizontal direction; and
a pair of convex portions extending upward from the pair of the horizontal surfaces, each of the pair of the convex portions disposed between the end portions in the second horizontal direction,

wherein the ink outlet is configured to be inserted to the circular portion of the hole and connected to the needle, and at least a part of the pair of convex portions are configured to be inserted to the pair of rectangular portions of the hole in a state that the ink refill container is attached to the printer.