Resetting the drum counter, Replacing the belt unit, Replace parts belt unit – Brother MFC 9970CDW User Manual
Page 87: Important

Routine maintenance
79
A
Resetting the drum counter
A
When you replace a drum unit with a new
one, you will need to reset the drum counter
by completing the following steps:
a
Press MENU.
b
Press a or b to display
Machine Info..
Press Machine Info..
c
Press Reset Menu.
d
Press Drum.
e
The machine will display
Reset Drum?.
f
Press Yes, and then press Stop/Exit.
Replacing the belt unit
A
Model name: BU-300CL
A new belt unit can print approximately
50,000 A4 or Letter size single-sided pages.
Replace Parts
Belt Unit
A
When the Replace Parts Belt Unit
message appears on the LCD, you will need
to replace the belt unit:
IMPORTANT
• DO NOT touch the surface of the belt unit.
If you touch it, it could degrade print
quality.
• Damage caused by incorrect handling of
the belt unit may void your warranty.
a
Make sure that the machine is turned
on.