Drum unit; Change Drum message; Replacing the drum unit- Page 76

6. Routine Maintenance

68

Drum unit

A new drum unit can print approximately 25,000 A4 or Letter size single-sided pages at 5% coverage.

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 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 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 a third-party drum unit.

Change Drum message

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.

Replacing the drum unit

CAUTION

While removing the drum unit, handle it carefully because it may contain toner.

Every time you replace the drum unit, clean the inside of the printer. See 

Cleaning

 on page 73.