5 - 8 ROUTINE MAINTENANCE
Drum unit
This printer can print up to 20,000 pages* with one drum unit.
* 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.
Change Drum message
If the LED shows the message below, it means the drum unit is near the end of it s lif e. We recommend
that you replace the drum unit with a new one before there is a notic eable deterioration in the print
quality.
Figure 5-14
Caution
■While removing the drum unit, handle it carefully becaus e it may conta in toner.
■Every time you replace the drum unit, you should clean the inside of the printer. See Cleaning
on page 5-12.
■There are many factor s that determine the actual drum life, such as t he temperature, humidity,
type of paper, type of toner used, number of pages per print job and so on. Under ideal
conditions, the average dr um life is estimated at up to 20,000 pages. The actual number of
pages that yo ur drum will print may be significantly less than this estimate. Bec ause we have no
control over the man y 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 shou ld be used only in a
clean, dust-free environment with adequate ventilation.
■Printing with a thi rd-party drum unit may r educe not only the print quality but also the q uality and
life of the printer itself. Warranty coverage does not apply to probl ems caused by the use of
third-party drum unit .