Canon LBP7018C E-Manual page 77

8
Take out the new drum cartridge from the protective bag.
You can open the protective bag with your hands from the notch.
Keep the protective bag. Do not discard it. You will need it when you remove the drum cartridge for printer
maintenance or other purposes.
9
Remove the protective cover.
Keep the protective cover. Do not discard it. You will need it when you remove the drum cartridge for printer
maintenance or other purposes.
10
Install the drum cartridge.
Push the drum cartridge into the printer firmly until it touches the back of the printer while aligning (A) on both sides of the
drum cartridge with the drum cartridge guides inside the printer.