Ink refill container, ink refill system, and ink refill adapter

An ink refill container configured to refill ink to an ink tank of a printer that has a needle in fluid communication with an ink storage chamber of the ink tank, the ink refill container comprising:

• a container main body including an ink chamber configured to contain therein ink;
• an ink outlet-forming portion that is connected to the container main body and that has an ink outlet configured to allow the needle to be inserted into the ink outlet, the ink outlet located on a side opposite to a side of the container main body;
• and
• a cap detachably attached to the ink outlet-forming portion, wherein the ink outlet-forming portion includes:
• a large-diameter portion connected to the container main body;
• and
• a small-diameter portion having an outer periphery smaller than an outer periphery of the large-diameter portion and having the ink outlet,
• wherein a female threaded portion is provided on an inner peripheral surface of the large-diameter portion, a male threaded portion is provided on an outer peripheral surface of the large-diameter portion, the female threaded portion of the large-diameter portion is screw-connected with a male threaded portion formed on the container main body,
• wherein the ink outlet-forming portion further includes a positioning portion that is located between the ink outlet and the male threaded portion of the large-diameter portion in a central axis direction of the ink outlet and that is located in a region that forms an outer side of the ink outlet in a radial direction centered about the ink outlet when viewed from the ink outlet in the central axis direction,
• wherein the positioning portion has a portion configured to abut against a part of the printer under a state in which ink is refilled to the ink tank,
• wherein the cap has a female threaded portion on an inner peripheral surface, the female threaded portion of the cap being configured to be screwed with the male threaded portion of the large-diameter portion, and
• wherein the cap is configured to cover the ink outlet and the positioning portion.

An ink refill container configured to refill ink to an ink tank of a printer that has a needle in fluid communication with an ink storage chamber of the ink tank and a pair of first fitting portions arranged across the needle,

• the ink refill container comprising:
• an ink chamber configured to contain therein ink;
• an ink outlet that is in fluid communication with the ink chamber and that is configured to allow the needle to be inserted into the ink outlet;
• a container appendage surrounding the ink outlet, the container appendage having a cylindrical lower end portion formed with a male threaded portion on an outer peripheral surface thereof and further having a pair of second fitting portions protruding upward in a central axis direction of the ink outlet, the pair of the second fitting portions being opposed to each other across the ink outlet and being configured to fit in the pair of first fitting portions;
• and
• a cap having a female threaded portion on an inner peripheral surface, the female threaded portion of the cap being configured to be screwed with the male threaded portion,
• wherein the cap is configured to cover the ink outlet and the pair of the second fitting portions.

An ink refill container configured to refill ink to an ink tank of a printer that has a needle in fluid communication with an ink storage chamber of the ink tank and a pair of first fitting portions arranged across the needle,

• the ink refill container comprising:
• a container main body including an ink chamber configured to contain therein ink;
• an ink outlet-forming portion that is connected to the container main body;
• and
• a cap having a female threaded portion on an inner peripheral surface,
• wherein the ink outlet-forming portion includes:
• an ink outlet configured to allow the needle to be inserted into the ink outlet, and positioned on a side opposite to a side of the container main body;
• a large-diameter portion connected to the container main body, the large-diameter portion including a male threaded portion on an outer peripheral surface of the large-diameter portion, the male threaded portion configured to be screwed with the female threaded portion of the cap;
• a small-diameter portion having an outer periphery smaller than an outer periphery of the large-diameter portion and having the ink outlet;
• and
• an attachment surface located below the large-diameter portion, the attachment surface extending further in a radial direction than the male threaded portion of the large-diameter portion,
• wherein the female threaded portion of the cap is screwed with the male threaded portion and a lower end portion of the cap comes into contact with the attachment surface in such a manner that the cap covers the ink outlet.

An ink refill container configured to refill ink to an ink tank of a printer that has a needle in fluid communication with an ink storage chamber of the ink tank and a pair of first fitting portions arranged across the needle,

• the ink refill container comprising:
• a container main body including an ink chamber configured to contain therein ink;
• an ink outlet-forming portion that is connected to the container main body and that has an ink outlet configured to allow the needle to be inserted into the ink outlet, the ink outlet-forming portion including a pair of second fitting portions that extend in a central axis direction of the ink outlet, the second fitting portions being configured to fit in the pair of the first fitting portions and the second fitting portions being positioned in a region that forms an outer side of the ink outlet in a radial direction centered about the ink outlet;
• and
• a cap detachably attached to the ink outlet-forming portion, the cap being configured to cover the ink outlet and the pair of the second fitting portions.

An ink refill container configured to refill ink to an ink tank of a printer that has a needle in fluid communication with an ink storage chamber of the ink tank,

• the ink refill container comprising:
• a container main body including an ink chamber configured to contain therein ink;
• an ink outlet-forming portion that is connected to the container main body and that has an ink outlet configured to allow the needle to be inserted into the ink outlet, the ink outlet-forming portion including an attachment surface;
• and
• a cap having a female threaded portion on an inner peripheral surface, the cap being configured to be screwed with a male threaded portion of an outer peripheral surface of the ink outlet-forming portion,
• wherein the attachment surface is located lower than the male threaded portion in a state where the ink outlet is directed upward, and the attachment surface extends outwards further than the male threaded portion in a radial direction of the ink outlet, and
• wherein the cap is detachably attached to the ink outlet-forming portion, the cap is configured to cover the ink outlet, and
• a lower end portion of the cap is configured to come into contact with the attachment surface.

An ink refill container configured to refill ink to an ink tank of a printer that has a needle in fluid communication with an ink storage chamber of the ink tank,

• the ink refill container comprising:
• a container main body including an ink chamber configured to contain the in;
• an ink outlet portion configured to allow the needle to be inserted into the ink outlet;
• a male threaded portion;
• an attachment surface that is located lower than the male threaded portion in a state where the ink outlet is directed upwards, the attachment surface extending outwards further than the male threaded portion in a radial direction of the ink outlet, and
• a cap having a female threaded portion on an inner peripheral surface,
• wherein the female threaded portion of the cap is screwed with the male threaded portion and a lower end portion of the cap comes into contact with the attachment surface in such a manner that the cap covers the ink outlet.