Canon ink cartridges each have a microchip. This chip tells the computer how much ink is in the cartridge. When the ink is low, the chip tells the computer it must be refilled. If you refill the cartridge with ink, the computer will “know” that the cartridge is a refill. Either reset the chip with a chip resetting device, or follow a simple set of steps to use these cartridges without resetting the chip. Writer Bio
