Chapter 5 Periodic Maintenance; Consumable Parts; Drum Unit - Brother DCP 8040 - B/W Laser - All-in-One Service Manual

CHAPTER 5
To avoid creating secondary problems by mishandling, follow the warnings below during
maintenance work.
(1) Always turn off the power switch and unplug the power cord from the power outlet
before accessing any parts inside the machine.
(2) Some parts inside the machine are extremely hot immediately after the machine is
used. When opening the front cover or rear cover to access any parts inside the
machine, never touch the shaded parts shown in the following figures.
1.

CONSUMABLE PARTS

The consumable parts described in this section are parts which are subject to deterioration or
damage and should be replaced at least once during the period of warranty of the product if
any print quality problem appears.
1.1

Drum Unit

Life expectancy:
NOTE:
There are many factors that determine the actual drum life, such as 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 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 machine 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 machine itself. Warranty coverage does not apply to problems
caused by the use of third-party drum unit.
PERIODIC MAINTENANCE
20,000 pages
(When printing A4 or Letter size paper at 5% print coverage)
*The actual number of printed pages will vary depending on the
average type of print job and paper.
MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN
WARNING
5-1
SERVICE MANUAL