Ink container having blocking member and boundary layer
AssigneeCanon Kabushiki Kaisha
InventorsEiichiro Shimizu, Hajime Yamamoto, Jun Hinami, Hiroki Hayashi
Life of this patent
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Abstract
An ink container includes an ink absorbing material for retaining ink and producing a negative pressure; a casing, provided with an ink supplying portion and an air vent, for accommodating the ink absorbing material; wherein the ink absorbing material is of thermoplastic material and has a surface ink blocking layer provided by heating and melting a surface of the absorbing material; wherein the ink blocking layer blocks movement of the ink contained in the ink absorbing material to outside, and constitutes at least a part of the casing.
Claims22
An ink container comprising:
- an ink absorbing material for retaining ink and producing a negative pressure;
- a casing, provided with an ink supplying portion and an air vent, for accommodating said ink absorbing material;
- wherein said ink absorbing material is of thermoplastic material and has a surface ink blocking layer provided by heating and melting a surface of the ink absorbing material;
- wherein said ink blocking layer blocks movement of the ink contained in said ink absorbing material to outside, and constitutes at least a part of said casing.
An ink container comprising:
- an ink absorbing material for retaining ink and producing a negative pressure;
- an ink supplying portion and an air vent;
- wherein said ink absorbing material is of thermoplastic material and has, at a part thereof, a surface ink blocking layer provided by heating and melting a surface of the absorbing material;
- wherein the ink blocking layer blocks movement of the ink contained in ink absorbing material.
An ink absorbing material for an ink container, comprising:
- an ink absorbing portion for retaining ink and producing a negative pressure;
- an ink blocking layer of thermoplastic material in or at a surface of said ink absorbing portion, said ink blocking layer being produced by heating and melting said ink absorbing portion and blocking movement of the ink contained in said ink absorbing portion.
Dependencies are inferred from the claim text.