Brother DCP-L8400CDN Basic User's Manual page 96

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Hold the handle of the toner cartridge
and gently push it forward to unlock it.
Then pull it out of the drum unit. Repeat
this for all the toner cartridges.
IMPORTANT
• Handle the toner cartridges carefully. If
toner scatters on your hands or clothes,
immediately wipe or wash it off with cold
water.
• To avoid print quality problems, DO NOT
touch the shaded parts shown in the
illustrations.
<Drum unit>
88
o
Turn the drum unit over by holding the
blue handles. Make sure that the drum
unit gears (1) are on the left hand side.
1
p
Check the drum dot check sheet for the
following issues:
 Dot Colour problem: The colour of
printed dots is the colour of the drum
you should clean.
 Dot location: The sheet has eight
numbered columns. The number of
the column with the printed dot in it is
used to find the dot position on the
drum.