HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL
Confidential
3-7
1.2 Drum Unit
A new drum unit can print approximately 25,000 A4 or Letter size single-sided pages at 5%
coverage.
NOTE:
* There are many factors that determine the actual drum life, such as the temperature,
humidity, type of paper, type of toner used, number of pages per print job and so on. Under
ideal conditions, the average drum life is estimated at approximately 25,000 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 the best performance, use only genuine Brother toner. The printer should be used only in
a clean, dust-free environment with adequate ventilation.
* Printing with a third-party drum unit may reduce not only the print quality but also the quality
and life of the printer itself. Warranty coverage does not apply to problems caused by the
use of a third-party drum unit.
<Change Drum Message>
(HL-5240/5250DN)
If the LED shows the message below, it means the drum unit is near the end of its life.
We recommend that you replace the drum unit with a new one before there is a noticeable
deterioration in the print quality.
Fig. 3-11
(HL-5270DN/5280DW)
Appears at intervals.
DRUM NEAR END
If the LCD shows “DRUM NEAR END”, it means the drum unit is near the end of its life. We
recommend that you replace the drum unit with a new one before there is a noticeable
deterioration in the print quality.
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