Brother MFC-P2500 User Manual page 75

How to Replace the Drum Unit
The printer uses a drum unit to create the print images on paper. When the
'CHANGE DRUM SOON' message appears on the LCD display, it indicates that
the drum unit is near the end of its life. Purchase a new drum unit to replace the
current one.
!
Caution
When removing the drum unit, handle it carefully because it contains toner.
You should clean the printer when you replace the drum unit.
clean the printer" in this chapter
supplied CD-ROM.
Note
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, your typical type of print job and the
amount of toner it uses and the number of pages per print job, etc.. 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 drum.
For best performance, use only genuine Brother toner. The product should
only be used in a clean, dust-free environment with adequate ventilation.
and in the instructional video on the
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CHAPTER 3 MAINTENANCE
See "How to