How to Replace a Cartridge in Canon 420 Printers

1. Lift the scanning platform by grasping the control panel on both ends and raising until the platform clicks into place.
2. Grasp the grip on the right-hand side of the toner cover and lift it.
3. Remove the old toner cartridge by grasping it by the center handle and pulling it out.
4. Remove the new cartridge from the package and gently rock it back and forth a few times to distribute the toner.
5. Grasp the orange seal tape on the left-hand side of the cartridge and pull it completely out.
6. Grasp the toner cartridge by its center handle and insert it so that the small plastic guide knob on the right-hand side of the cartridge fits into the guide slot on the right side of the machine. Slide it down into the machine until it is fully inserted.
7. Close the toner cover and the scanning platform.