Patent ID: 11912036
Assignee: CANON KABUSHIKI KAISHA
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 26:
27. A printing apparatus comprising:
a tank container including:
a first chamber configured to store ink therein, the first chamber having a first opening on a surface of the tank container;
a supply port configured to supply ink from the first chamber to a print head that ejects the ink;
an injection port for injecting ink into the first chamber;
a second chamber configured to store air therein and communicate with the first chamber by a communication portion, the second chamber having a second opening on the surface of the tank container; and
an air introduction port configured to introduce external air to the second chamber;

a first cover configured to cover the first opening and not to cover the second opening; and
a second cover configured to cover the second opening and not to cover the first opening.