Canon CLC5151 Reference Manual page 375

3
Grip the top notch on the toner cartridge, and pull the toner cartridge
out (only halfway) of the toner supply port.
Pull the toner cartridge out halfway, and then remove it completely while supporting it with your
other hand from underneath.
WARNING
Do not burn or throw used toner cartridges into open flames, as this may cause the
toner remaining inside the cartridges to ignite resulting in burns or a fire.
4
Hold the new toner cartridge in your hands, as shown below, and
rotate it gently to the left and right several times.
Replacing the Toner Cartridge
7
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