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US 2011/0254905 A1Published application
Ink cartridge, ink jet recording system and ink jet recording apparatus
AssigneeCanon Kabushiki Kaisha
InventorsHiroki Hayashi, Keisuke Matsuo, Kenta Udagawa
Life of this patent
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Abstract
An ink cartridge adopts a construction in which an air seal and an ink seal are arranged on the cartridge side and in which sealing between the ink cartridge and the recording apparatus is performed with a radial seal.
Claims15
An ink cartridge for supplying ink to a recording apparatus upon connection to the recording apparatus, the ink cartridge comprising:
- a casing having an interior and an opening;
- a flexible ink accommodation body, for accommodating ink, provided within the interior of the casing;
- an ink supply body, attached to the ink accommodation body, for supplying ink in an ink-flow direction from the ink accommodation body to the recording apparatus in the case that the cartridge is connected to the recording apparatus;
- a first sealing unit;
- a second sealing unit provided upstream, in the ink-flow direction, of the first sealing unit,
- wherein the first sealing unit is arranged to retain ink in the ink accommodation body in the case that the cartridge is not connected to the recording apparatus,
- wherein the second sealing unit is arranged to form a sealing engagement with the recording apparatus when the cartridge is connected to the recording apparatus, and
- wherein, between the first sealing unit and the second sealing unit, there is provided a gap communicating with the interior of the casing.
5 more elements
An ink jet recording apparatus, arranged to be connected to an ink cartridge, comprising:
- an elongate connection member having a proximal end connected to the recording apparatus and a distal end for connection to an ink cartridge, the connection member comprising an air inlet path leading to an air inlet port, for introducing air into the attached ink cartridge, and comprising an ink outlet path leading from an ink outlet port, for introducing ink into the recording apparatus, wherein the ink outlet port is provided at the distal end of the connection member and the air inlet port is provided between the ink outlet port and the proximal end of the connection member, and a pump for supplying compressed air to the air inlet path, wherein the connection member does not comprise an air sealing unit for providing an air-tight seal with the connected ink cartridge.
Dependencies are inferred from the claim text.