Importance

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Abstract

An ink cartridge employable for an ink jet type recording apparatus includes a case (4) having a front plate (4a) with at least one position determining hole (4h/4g) formed therein. An ink bag (1) containing a supply of ink is received in the case (4) in a manner such that the position determining hole (4h/4g) allows the insertion of a position determining shaft (16/17) projecting from an inner end of a cartridge holder (90) through the position determining hole (4h/4g) to guide and properly locate the ink cartridge (80) relative to the cartridge holder (90) without establishing communication between the ink bag (1) and the position determining shaft (16/17). An ink outlet piece (2) having an ink flow path therein communicates with the ink bag (1) so that an ink feeding needle (15) disposed at the inner end of the cartridge holder (90) and slightly behind the position determining shaft (16/17) is capable of piercing through the ink outlet piece (2) to reach an interior of the ink bag (1), the outlet piece (2) being positioned to contact the ink feeding needle (15) after the ink cartridge (80) has been properly located relative to the cartridge holder (90) by the position determining hole (4h, 4g) and the position determining shaft (16/17).

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First Claim