User's Manual

Maintaining Your Printer | 329
5 Close the front cover.
Replacing the Drum Cartridges
You need to replace all drum cartridges (yellow, magenta, cyan, and black) at a time.
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.
Removing the Drum Cartridge
1 Open the right side cover.
2 Push down the latch to release the waste toner box from the printer.