This is an aftermarket compatible chip for Canon CLI-221 cartridges, which can be installed on any Canon CLI-221 cartridge and will allow your printer to recognize the cartridge as FULL.

Why do I need a chip for the Canon CLI-221? Canon has made the CLI-221 cartridges dependent on the chips, basically when you run out of ink on your Canon CLI-221 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-221 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!