6. Position the new BTR roller with the gear on the right side. Insert the left side of the shaft into the printer first, then the right.
Make sure the shaft is seated securely into the notches inside the printer.
7. Press down on both ends of the BTR roller until it locks into place.
8. Reinsert the toner cartridge into the printer, making sure the tabs on the left and right of the cartridge match up with the channels within the printer (as shown).
Make sure the cartridge is inserted all the way into the printer and is seated properly.
