Brother HL-1660E - Manual (Page 34)

USER’S GUIDE
2–8
3. Hold the toner cartridge with both hands. Rock it gently several times
at a 45° angle. This distributes the toner evenly inside the cartridge.
45°
45°
Fig. 2-10 Rocking the Toner Cartridge
4. Bend the tab up and down several times until it is detached from the
toner cartridge.
Fig. 2-11 Detaching the Tab