Ink container, method for manufacturing ink container containing ink, and method for injecting ink into ink container

An ink container comprising:

• an ink storage portion configured to be flexible and to store ink therein;
• and
• a structure provided inside the ink storage portion,
• wherein an opening portion is formed in a vicinity of a region of the ink storage portion in which the structure is provided internally, when the ink storage portion is viewed from a thickness direction of the ink storage portion, and
• wherein the opening portion is sealed by a seal member.

A method for injecting ink into an ink container, the method comprising:

• forming an opening portion in a surface of an ink container by inserting a needle into the ink container, the ink container including a flexible ink storage portion configured to store ink therein, and a structure provided inside the ink storage portion;
• injecting ink into the ink storage portion through the opening portion;
• and
• sealing the opening portion,
• wherein a position of the ink storage portion at which the opening portion is formed is in a vicinity of a region of the ink storage portion in which the structure is internally provided, when the ink storage portion is viewed from a direction in which the needle is inserted.