Fig. 5-4; Fig. 5-5; Fig. 5-6- Page 117

CHAPTER 5  PERIODIC MAINTENANCE

5-3

(4)   Remove the protective cover. (Fig. 5-4)

(5)   Install the new toner cartridge into the

drum unit until it locks into place,
indicated by a click.  When the toner
cartridge is installed correctly, the lock
lever is lifted automatically.

Fig. 5-4

(6)   Clean the primary corona wire inside the

drum unit by gently sliding the wire
cleaner (blue tab) to the right end and
left end several times. (Fig. 5-5)

(7)   Return the cleaner to the home position

before re-installing the drum unit.

(8)   Re-install the drum unit into the printer

and close the front cover.

Fig. 5-5

!

CAUTION:

• 

Keep the drum unit level after removing the toner cartridge to avoid possible toner spill or
scatter.

• 

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.

• 

Only unpack a toner cartridge immediately before you need to install it into the printer.  If a
toner cartridge is left unpacked for a long period of time, the toner life is shortened

• 

If an unpacked drum unit is subjected to excessive direct sunlight or room light, the unit
may be damaged.

• 

Use a Brother genuine toner cartridge which is specially formulated to ensure top print
quality.

• 

Printing with a 3rd party toner or toner cartridge may reduce not only the printing quality but
also the quality and life of the printer itself.  It may also cause serious damage to the
performance and life of a genuine Brother drum unit.  Warranty cover is not applied to
problems caused by the use of 3rd party toner or toner cartridges.

• 

Make sure that the wire cleaner on the drum unit is returned to the home position (

▲

 mark

position) before re-installing the drum unit into the printer, or printed pages may have
vertical stripes. 

 (Refer to Fig. 5-5.)

• 

Install the toner cartridge immediately after you remove the protective part.  Do not touch
the development roller and photosensitive drum colored red as shown below;

Fig. 5-6