Brother DCP9040CN - Manual (Page 108)

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e
Unpack the new toner cartridge. Hold
the cartridge with both hands and gently
shake it five or six times to spread the
toner evenly inside the cartridge.
f
Remove the orange protective cover.
g
Holding the toner cartridges by their
coloured handles, insert them one by
one back into the drum unit as shown.
Make sure that you match the toner
cartridge colour to the same colour label
on the drum unit, and make sure that
you fold down the toner cartridge
handle (A) once the toner cartridge is in
place. Repeat this for all the toner
cartridges.
1 C - Cyan
2 M - Magenta
3 Y - Yellow
4 K - Black
A
A
1
2
3
4