Brother DCP 8040 - B/W Laser - All-in-One Service Manual page 183

CHAPTER 5 PERIODIC MAINTENANCE
<Toner Low message>
When the toner cartridge is running low, the LCD shows Toner Low.
If the LCD shows this message, the toner cartridge has nearly run out of toner. Buy a new
toner cartridge and have it ready before you get a Toner Empty message.
<Toner Empty message>
<Replacement Procedure>
(1) Press the cover release button and then open the front cover.
(2) Pull out the drum unit assembly. (Drum unit with toner cartridge).
!
CAUTION:
It is recommended to place the drum unit assembly on a piece of disposable paper or cloth
in case you accidentally spill or scatter toner.
To prevent damage to the machine from static electricity, do not touch the electrodes
shown in the figure below
Toner Low
Fig.5-5
Fig.5-6
Fig.5-7
5-4