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Routine Maintenance
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5
Replacing the drum unit 5
Order No. DR-331CL
A new drum unit can print approximately 25,000 pages.
12
1
Letter or A4 size single-sided pages.
2
Drum life is approximate and may vary by type of use.
NOTE
• There are many factors that determine the actual drum life, such as the temperature, humidity, type of
paper, type of toner used 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 best performance, use only genuine Brother toner. The machine should be used only in a clean,
dust-free environment with adequate ventilation.
• Printing with a non-Brother drum unit may reduce not only the print quality but also the quality and life of the
machine itself. Warranty coverage does not apply to problems caused by the use of a non-Brother drum unit.
Drum ! 5
Drum !
The corona wires are coated with paper dust or toner. Clean the corona wires in the drum unit (see Cleaning
the corona wires on page 154).
Drum End Soon 5
Drum End Soon
The drum unit is nearing the end of its rated life and will require replacement. We recommend you keep a
genuine Brother drum unit ready for installation. Buy a new drum unit (DR-331CL) and have it ready before
you get a Replace Drum message.
Replace Drum 5
Replace Drum
The drum unit has exceeded its rated life. Please replace the drum unit with a new one. We recommend a
genuine Brother drum unit be installed at this time.
After replacement, reset the drum counter by following the instructions included with the new drum unit.
Drum Stop 5
Drum Stop
We cannot guarantee the print quality. Please replace the drum unit with a new one. We recommend a
genuine Brother drum unit be installed at this time.
After replacement, reset the drum counter by following the instructions included with the new drum unit.