Ink cartridge for ink-jet printing apparatus
First Claim
1. An ink cartridge for detachable mounting on an ink jet printing apparatus having a printhead and an ink supply needle connecting to the printhead, the ink cartridge comprising:
- a housing defining an ink chamber containing ink therein;
an ink supply port formed in a wall of said housing for communicating said ink chamber with the printhead through the ink supply needle inserted along a direction into the ink supply port;
a porous member disposed in at least a portion of the ink chamber;
a reseal structure that prevents outward flow of ink through the ink supply port when the needle is not present, at least a part of which is disposed in a region of said ink supply port, and a memory device mounted on a wall of said housing for storing information relating to the ink contained in said ink chamber.
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Accused Products
Abstract
An ink cartridge for an ink jet printing apparatus having a printhead which ejects ink droplets onto a recording medium and an ink supply needle introducing ink to the printhead, the ink cartridge having a substantially rectangular housing containing ink therein, the housing having a first outer wall and a second outer wall which is substantially perpendicular to the first outer wall; an ink supply port formed in the first wall for directing ink in the housing to the printhead; a valve mechanism arranged in the ink supply port including a valve seat allowing the ink supply needle to pass therethrough; a valve body movable along the axis of the ink supply port; and an elastic member biasing the valve body against the valve seat, and a memory device for storing information relating to ink mounted on the second wall of the housing and substantially in parallel therewith, the memory device being formed in the vicinity of the ink supply port, which wall directing in parallel with a direction along which the ink supply needle is inserted into the valve seat.
67 Citations
19 Claims
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1. An ink cartridge for detachable mounting on an ink jet printing apparatus having a printhead and an ink supply needle connecting to the printhead, the ink cartridge comprising:
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a housing defining an ink chamber containing ink therein;
an ink supply port formed in a wall of said housing for communicating said ink chamber with the printhead through the ink supply needle inserted along a direction into the ink supply port;
a porous member disposed in at least a portion of the ink chamber;
a reseal structure that prevents outward flow of ink through the ink supply port when the needle is not present, at least a part of which is disposed in a region of said ink supply port, and a memory device mounted on a wall of said housing for storing information relating to the ink contained in said ink chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An ink cartridge for detachable mounting on an ink jet printing apparatus comprising:
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a cylindrical packing in an ink supply port thereof for communicating an ink chamber with a printhead through an ink supply needle;
a valve body disposed at an upstream side of the cylindrical packing, and always urged by a spring to seal the cylindrical packing to prevent outward flow of ink;
a memory means storing information relating to the ink contained in the ink cartridge, disposed on a wall of the ink cartridge, which wall being in parallel with an insertion direction of the ink supply needle; and
a porous member housed in said ink chamber at least in the vicinity of said valve body. - View Dependent Claims (15, 16)
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17. An ink cartridge for detachable mounting on an ink jet printing apparatus comprising:
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a cylindrical packing in an ink supply port thereof for communicating an ink chamber with a print head through an ink supply needle;
a valve body disposed at an upstream side of the cylindrical packing, and always urged by a spring to seal the cylindrical packing to prevent outward flow of ink;
a memory device storing information relating to the ink contained in the ink cartridge, disposed on a wall of the ink cartridge, which wall being in parallel with an insertion direction of the ink supply needle; and
a porous member housed in said ink chamber at least in the vicinity of said valve body. - View Dependent Claims (18, 19)
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Specification