Place the clogged nozzles in a shallow dish filled with warm water and soak them until dried ink begins to flow freely from the nozzle. After several minutes of letting the dried ink flow, remove the nozzle from the water and gently dry it with a soft tissue or cotton swab. Reinstall the cartridge and run the print head cleaning mechanism (described in your printer's operating manual). If this does not work, repeat the procedure. If your cartridge still does not print after repeating, you will need to purchase a new cartridge because the print head of your existing cartridge is probably damaged.