Canon D480 - ImageCLASS B/W Laser Basic Operation Manual page 184

Hold the grip (A) on the right front side of
3
the toner cover.
Open the toner cover.
4
Remove the toner cartridge.
5
Remove the new toner cartridge from the
6
protective bag.
Do not open the drum protective shutter (A).
Save the protective bag. You may need it later
when you remove the toner cartridge from the
machine.
Gently rock the toner cartridge several
7
times to evenly distribute toner inside.
Replacing the Toner Cartridge
10-13