Replacing the print cartridges433 Squeeze the tabs on the cartridge lids, then lift the lids.4 Remove the used cartridges. Store them in an airtight container or dispose of them properly.Installing the cartridges1 If you are installing new cartridges, remove the sticker and transparent tape from the backand bottom of the cartridges.Warning: Do not touch or remove the gold contact areas on the back and bottom of thecartridges.