Canon imageCLASS LBP913w User Manual page 220

5
Shake the drum cartridge 5 or 6 times as shown below to evenly distribute the toner
inside the drum cartridge, and then place it on a flat surface.
6
Replace the drum cartridge.
7
Close the toner cover.
8
Replace the output cover.
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Consumables(P. 222)
Maintenance
215