Brother MFC-9420CN - Manual (Page 162)

Troubleshooting and routine maintenance
C - 37
C
Reset the Fusing Unit life counter
1
Press Menu/Set, 7, 4.
2
Press
▲ or ▼ to select Fusing Unit
and press Menu/Set.
The confirmation message appears on
the LCD.
3
Press 1 to reset the life counter.
—OR—
Press 2 to cancel.
Replacing the transfer belt
cleaner
1
Turn off the machine’s power switch.
2
Open the scanner unit.
3
Open the inside cover of the machine so
that it latches under the scanner unit.
CAUTION
Please be careful when replacing the
fusing unit. Do not put pressure on the
fusing unit; it should go in easily. If it does
not, make sure the fusing unit connector is
free to move.
Do not apply force! It could damage both
the fusing unit and the machine.
Fusing Unit
1.Reset 2.Exit
CAUTION
Both ends of the transfer belt cleaner roller
consist of metal bearings that connect the
bias element to the power supply. These
must be connected properly when you
install the transfer belt cleaner. Be sure to
check how to connect them properly by
looking at the old transfer belt cleaner
before you begin replacement.