
T R O U B L E S H O O T I N G A N D M A I N T E N A N C E 159
Follow these steps to replace the drum unit:
1Open the front cover.
2Remove the old drum unit. Place the drum unit on a drop cloth or large piece of disposable paper to avoid spilling and scattering the toner.
3Pull the toner cartridge out of the drum unit assembly while holding down the lock lever with your right hand. For more information, see “Replacing the Toner Cartridge” in this chapter.



Lock Lever
Discard the used drum unit according to local regulations. Be sure to seal the drum unit tightly so toner powder does not spill out of the unit. When discarding used drum units, keep them separate from domestic rubbish.