Toner Cartridge - Brother MFC8420 Service Manual

(4) Unpack the new drum unit.
(5) Put the toner cartridge in the new drum
unit until you hear it lock into place with
a click. When the toner cartridge is
installed correctly, the blue lock lever is
lifted automatically. Make sure you fit
the toner cartridge properly, or it may
separate from the drum unit when you
pick up the drum unit assembly.
(6) Put the drum unit assembly in the machine.
(7) Reset the drum counter referring to the instructions supplied with the new drum unit.
(8) Press the Clear/Back button.
(9) Press 1 key and when the LCD shows accepted, and close the front cover.
!
CAUTION:
• Only unpack a drum unit immediately before you need to install it into the machine. If an
unpacked drum unit is subjected to excessive direct sunlight or room light, the unit may be
damaged.
• Handle the drum unit and toner cartridge carefully. If toner scatters on your hands or
clothes, wipe or wash it off with cold water immediately.
• Discard the used drum unit according to local regulations, keeping it separate from
domestic waste. If you have questions, call your local waste disposal office.
• Be sure to seal up the drum unit tightly so that toner powder does not spill out of the unit.
• Do not reset the drum counter when replacing the toner cartridge only.
• It is recommended to clean the machine when you replace the drum unit. Refer to
subsection 3. 'PERIODICAL CLEANING' in this
1.2

Toner Cartridge

Life expectancy:
NOTE:
•
There are many factors that determine the actual toner life, such as temperature, humidity,
type of paper that you use, the number of pages per print job, etc.
•
The amount of toner used varies according to what is printed on the page and the print
density setting.
•
The more that is printed, the more toner will be used.
•
If you change the print density setting for lighter or darker printing, the amount of toner that
is used will change
•
Wait to unpack the toner cartridge until immediately before you install it in the machine.
6,500 pages / high-yield toner cartridge
3,300 pages / standard cartridge
(When printing A4 or Letter size paper at 5% print coverage)
5-3
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
Fig. 5-4
Chapter.
SERVICE MANUAL