CHAPTER 3 MAINTENANCE
How to replace the Drum Unit
The printer uses a drum unit to create the print images on paper. If the
is on, it indicates the drum unit is nearly at the end of its life. We recommend you
obtain a new drum unit to replace the current one. Even if the
LED is on,
you may be able to continue to print without replacing the drum unit for a while.
If there is a noticeable deterioration in the output print quality even before the
LED lights, then the drum unit should be replaced.
Fig. 3-12 Drum unit nearly at the end of its Life
When removing the drum unit, handle it carefully as it may contain toner.
You should clean the printer when you replace the drum unit
. See “How to
clean the printer” in this chapter
and in the instructional video on the supplied
The drum unit is a consumable, and it is necessary to replace it periodically.
There are many factors that determine the actual drum life, such as
temperature, humidity, type of paper and toner that you use, the number of
pages per print job, etc. Under ideal conditions, the average drum life is
estimated at approximately 20,000 pages. The actual number of pages that
your drum will print may be significantly less than this estimate. Because we
have no control over the many factors that determine the actual drum life, we
cannot guarantee a minimum number of pages that will be printed by your
For best performance, use only genuine Brother toner. The product should only
be used in a clean, dust-free environment with adequate ventilation.