I just got this set (comes in a red box indicating 'the cartridge is with chip'). I only installed the black one, which leaked a bit when I removed the protective clip, but my printer will not recognize it, even after removing the bit of paper as the instructions say to do and reinstalling 8 times! I cleaned the printhead and the black ink seems to be printing ok, but my printer changed from saying 'black ink is low' to 'black ink is very low'. I don't know how long the ink will last, but the unreliable installation and time spent trouble-shooting is very annoying.

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