Brother HL-1020 Service Manual page 254

USER'S GUIDE
5-2
!
Caution
Keep the drum unit level after removing the toner cartridge, to avoid
possible toner spill or scatter.
Follow these steps to replace the toner cartridge:
1. Open the top cover towards you. Remove the drum unit by holding
each side of the drum and gently lifting the drum forwards towards
you.
Fig. 5-2 Removing the Drum Unit
Note
It is recommended to put the drum unit on a piece of disposable paper or
cloth in case of accidental toner spill or scatter.