Operation Manual

334 | Maintaining Your Printer
3 Align the toner cartridge to the notches on the associated cartridge slot, and then
insert the toner cartridge.
4 Push the toner cartridge all the way in until you feel a click.
5 Close the front cover.
Replacing the Drum Cartridges
WARNING:
• Before replacing the drum cartridges, read and follow the safety instructions in the Important
Information.
CAUTION:
• Protect the drum cartridges against bright light. If the right side cover remains open for more
than 3 minutes, print quality may deteriorate.