Brother HL 1270N - Manual (Page 57)

CHAPTER 3 MAINTENANCE
3-9
How to replace the Drum Unit
The printer uses a drum unit to create the print images on paper. If the Drum LED is lit it
indicates the drum unit is near the end of its life. Purchase a new drum unit to replace the
current one. Even if the
Drum LED is on, you may be able to continue to print without
replacing the drum unit for a while. However, if there is a noticeable deterioration in the
output print quality even before the
Drum LED lights, then the drum unit should be replaced.
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 CD-ROM.
Drum
Ready
Alarm
Paper
Toner
Data
Fig. 3-12 Drum unit near the end of its Life
!
Caution
When removing the drum unit, handle it carefully because it contains toner.
✒ 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 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 drum.

For best performance, use only genuine Brother toner. The product should be used only in
a clean, dust-free environment with adequate ventilation.