Routine maintenance
48
5
h
Put the drum unit and toner cartridge assembly back in the printer. Close the front cover of the printer.
Drum unit
5
This printer can print up to 12,000 pages
with one drum unit.
1
At 5% print coverage (A4 or Letter size). The actual number of printed pages will vary depending on the average type of print job and paper.
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 up to 12,000 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 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 third-party drum unit.
Change Drum message
5
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.
CAUTION
While removing the drum unit, handle it carefully because it may contain toner.
Every time you replace the drum unit, you should clean the inside of the printer. See
