Brother MFC-P2500 User Manual page 70

2.
Place the drum unit assembly containing the old toner cartridge on a flat,
horizontal surface and pull the toner cartridge out of the drum unit assembly
while pushing the lock lever down with your right hand.
!
Caution
Handle the toner cartridge carefully. If toner scatters on your hands or clothes,
immediately wipe or wash it off with cold water.
3.
Unpack the new toner cartridge, and keep it horizontal as you gently rock it
from side to side 5 or 6 to distribute the toner evenly inside the cartridge.
Fig. 3-3 Removing the Old Toner Cartridge
Fig. 3-4 Rocking the Toner Cartridge
3-4
Hold down this lock
lever