The following steps can help you replace the ink cartridges in your printer:

1. Turn off the printer and unplug it from its power source.
2. Open the access panel on the printer and locate the empty cartridges.
3. With the empty cartridges still in the printer, insert the new cartridges into the respective slots.
4. Tighten the new cartridges and close the access panel.
5. Plug the printer back into the power source and turn it on.