My cartridge is not recognized by the printer.

Remove the cartridge from the printer and gently wipe the chip on the cartridge with a clean, dry paper towel. Then insert the cartridge back into the printer.

This message on the cartridges means that it is (almost) empty and needs to be replaced. If this is a new cartridge, and therefore cannot be empty, remove the cartridge from the printer and clean the chip gently with a damp, lint-free cloth or paper towel.

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