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Compatible Replacement Chip for Canon CLI-251 and PGI-250. This is an aftermarket compatible chip for Canon CLI-251 and PGI-250 cartridges, which can be installed on any Canon CLI-251 and PGI-250 cartridge and will allow your printer to recognize the cartridge as FULL. New chip is required for each cartridge refill.
Why do I need a chip for the Canon CLI-251 and PGI-250? Canon has made the CLI-251 and PGI-250 cartridges dependent on the chips, basically when you run out of ink on your Canon CLI-251 and PGI-250 cartridge, the printer reads a message from the chip that says the cartridge is "empty". This causes the printer to send you error signals until you replace the cartridge. Now you can refill your Canon CLI-251 and PGI-250 cartridges and simply add our new compatible chips, which will be recognized by your printer as "new", thereby allowing you to print with your refilled cartridge just as though it were new!