Brother MFC 9840CDW - Manual (Page 196)

180
To avoid print quality problems, DO NOT
touch the shaded parts shown in the
illustrations.
d
Hold the handle of the toner cartridge
and pull it out of the drum unit. Repeat
this for all the toner cartridges.
CAUTION
We recommend that you place the toner
cartridges on a clean, flat surface with a
piece of disposable paper underneath it in
case you accidentally spill or scatter toner.
Handle the toner cartridge carefully. If toner
scatters on your hands or clothes, wipe or
wash it off with cold water at once.
e
Unpack the new drum unit and remove
the protective cover.
2
1