Ink cartridge for ink jet recorder and method of manufacturing same
AssigneeSeiko Epson Corporation
InventorsKazuhiko Hara, Minoru Usui, Kouichi Toba, Takao Kobayashi
Life of this patent
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Abstract
An ink tank cartridge for use in an ink jet recorder has a container having exterior walls, a porous member is stored in the container, an ink supply port that extends through one of the exterior walls of the body to supply ink to the exterior of the cartridge, and a packing member, disposed within the ink supply port and having an opening therethrough and a rib formed on a upper surface. A pressing member may be provided to bias the packing member against an inner surface of the ink supply port. The ink tank cartridge can be assembled to limit the occurrence of air bubbles in the ink.
Claims14
An ink tank cartridge for use in an ink jet recording apparatus, comprising:
- a tank body having exterior walls;
- a porous member stored in said tank body;
- an ink supply port configured to receive an ink supply needle of an ink jet recording head, the supply port having an inner surface, defined by and extending through one of said exterior walls of said body to supply ink to the exterior of the cartridge;
- a packing member disposed within said ink supply port said packing member having an opening therethrough, a lower surface and, an upper surface facing said tank body;
- and a rib disposed between the upper surface and the tank body, said rib circumscribing said opening.
An ink tank cartridge for use in an ink jet recording apparatus, comprising:
- a tank body having a plurality of exterior walls defining an interior space;
- at least one porous member within said interior space of the tank body;
- at least one port extending through one of said exterior walls of said body;
- a gas-permeable seal for sealing said at least one port;
- and
- a gas-impermeable bag for enclosing the ink tank cartridge and defining a decompressed dead space between said as impermeable bag and ink tank body into which gas dissolved in said tank body can flow via said ink supply port and said gas-permeable seal when said ink tank cartridge is enclosed with in the gas impermeable bag.
Dependencies are inferred from the claim text.