| 摘要 |
An ink cartridge including a cartridge case that contains an ink pack, on one surface of the cartridge case having an ink outlet port from the ink pack, a pressurized air inlet port and a connection terminal of a circuit board having a data storage means that stores ink information of the cartridge therein, a cartridge side compatibility detection mechanism and a positioning means used in case that the ink cartridge is attached to an ink jet recording apparatus. The cartridge is exactly positioned and fixed to a holder three-dimensionally by the positioning means, a mechanical positional adjustment and electrical connection can be exactly performed, so that operation reliability of the recording apparatus can be improved and even if ink leaks from the ink outlet port, the connection terminal can be prevented from being stained with the ink.
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