Patent ID: 8636347

Claim:
An ink cartridge for use with a recording apparatus which supplies ink to a recording head by application of pressurized air produced by an air pressurization pump, the ink cartridge comprising: an ink chamber storing ink therein, said ink chamber including a wall of flexible material and including an ink outlet port normally closed; an outer shell member constructed at least by a first outer shell constituent member and a second outer shell constituent member, said first outer shell constituent member including an opening, a film hermetically sealed over said opening and an air inlet port normally open, said air inlet port being integral with said first outer shell constituent member, said ink chamber being disposed within the first outer shell cconsituent member, and the ink outlet port being at least partially exposed outside said first outer shell constituent member, and said second outer shell constituent member being coupled to said first outer shell constituent member to cover said film; and a pressure chamber defined between the first outer shell constituent member and the ink chamber and adapted to receive the pressurized air produced by the air pressurization pump.