Brother HL-1020 Service Manual page 260

USER'S GUIDE
5-8
Follow these steps to replace the drum unit:
1. Open the top cover towards you. Remove the old drum unit.
Fig. 5-12 Removing the Drum Unit
Warning
After you have just used the printer, some internal parts of the
printer are extremely hot. When you open the top cover of the
printer, never touch the shaded parts shown in the following
illustration.
2. Remove the toner cartridge from the drum unit and keep it in a safe
place. For more information,
CARTRIDGE" in this chapter.
Note


Discard the used drum unit according to local regulations. If you are
not sure of them, consult your local dealer/retailer. Be sure to seal up
the drum unit tightly so that toner powder does not spill out of the
unit. Do not discard used drum units together with domestic rubbish.


It is recommended to put the drum unit on a piece of disposable paper
or cloth in case of accidental toner spill or scatter.
High Temperature
Fig. 5-13 Inside the Printer
see "REPLACING THE TONER