![background image](/i/dell/152829/dell-c2660dn/h/dell-c2660dn-275.png)
Maintaining Your Printer
273
Replacing the Drum Cartridges
You need to replace all drum cartridges (yellow, magenta, cyan, and black) at a time.
WARNING:
Before performing any of the following procedures, 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 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.