Brother HL-1650/1670N - Manual (Page 152)

5-12
™ CHANGE DRUM SOON message
CHANGE DRUM SOON
The printer uses a Drum unit to create the print images on paper. If the
display shows the above message, 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.
™ Replacing the Drum unit
This printer can print approximately 20,000 pages *1 with one Drum unit.
*1 At 5% coverage print (A4-Letter size). The actual number of printed pages
may vary depending on the average type of print job and paper.
✒ ✒ ✒ ✒
Note
There are many factors that determine the actual drum life, such as
temperature, humidity, type of paper, type of toner used, 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 printer should
be used only in a clean, dust-free environment with adequate ventilation.