Maintaining Your Printer 317
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
Product
Information Guide
.
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.
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