Brother MFC 9970CDW - Manual (Page 80)

72
l
Push the drum unit in until it stops.
m
Close the front cover of the machine.
Note
After you replace a toner cartridge, DO
NOT turn off the machine's power switch
or open the front cover until the LCD
clears the Please Wait message and
returns to Ready mode.
Replacing the drum unit
A
Model name: DR-340CL
A new drum unit can print approximately
25,000 A4 or Letter size single-sided pages.
IMPORTANT
For best performance, use a Brother
Original drum unit and Brother Original
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 machine itself. Warranty coverage
may not apply to problems caused by the
use of a third-party drum unit or toner unit.