Brother MFC-9120CN User Manual page 179

Replace Drums messages
When the following message appears on the
LCD, you need to replace the drum kit:
Replace Drums
Drum Error
<Scrolling message>
Replace the Drum Unit. Black/ C
yan/ Magenta/ Yellow. Refer to
the User's Guide.
1
Only the color you need to replace will be shown
The Drum Error message has two cases: If
the scrolling message shows
Replace the Drum Unit. you will need
to replace the drum unit. If the scrolling
message shows
Slide the Green tab on Drum Unit.
you do not need to replace the drum unit, you
just need to clean the corona wires. (See
Cleaning the corona wires on page 153.)
IMPORTANT
For best performance, use only Genuine
Brother drum units and Genuine Brother
toner units. Printing with a third-party drum
unit or toner unit may reduce not only the
print quality but also the quality and life of
the printer itself. Warranty coverage may
not apply to problems caused by the use
of a third-party drum unit or toner unit.
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Troubleshooting and routine maintenance
Note
If only the specified drum needs to be
replaced, the LCD shows the
Replace Drum(X) message. (X)
indicates the drum unit color that you need
to replace. ((K)=Black, (Y)=Yellow,
(M)=Magenta, (C)=Cyan). During the
normal lifespan of a drum kit the Replace
Drum (X) message will not appear. The
message will only refer to a specific drum
if a single unit has been replaced
previously due to damage or error.
Replacing the drum units
IMPORTANT
• While removing the drum unit, handle it
carefully because it may contain toner. If
toner scatters on your hands or clothes,
wipe or wash it off with cold water at once.
• Every time you replace the drum unit,
clean the inside of the printer. (See
Routine maintenance on page 150.)
a
Turn off the machine. Unplug the
telephone line cord first, and then
unplug the power cord from the
electrical socket.
b
Fully open the top cover by lifting up on
the handle (1).
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C
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