Replacing the Drum Cartridges
You need to replace all drum cartridges (yellow, magenta, cyan, and black) at a time.
Before performing any of the following procedures, read and follow the safety instructions in the
Protect the drum cartridges against bright light. If the right side cover remains open for more than three minutes,
print quality may deteriorate.
Removing the Drum Cartridge
1 Open the right side cover.
2 Turn the waste toner box lock lever 90-degrees counterclockwise to unlock the waste toner box.
Maintaining Your Printer