Does what it is supposed to
When I first try to reset one of my cartridge it did not appears to work but I found that you have to make sure all the pins are covered. to achieved this I actually removed the guide and visually aligned the pin, then it worked ok. This is the reason for the 4 stars.
with the price of the cartridges it is a worthwhile investment as I am sure the cartridges are only 2/3 empty when the printer stop working! So big saving in the long run.
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