Canon MF211 Manual page 285

6
Pull the sealing tape straight out.
The full length of the sealing tape is approximately 50 cm.
When pulling out the sealing tape
If the sealing tape remains inside the toner cartridge, the quality of printouts may deteriorate.
Do not pull out the sealing tape at an angle or sideways. If the tape breaks, you may not be able to pull it out completely.
If the sealing tape becomes stuck when pulling it out, keep pulling until it is completely removed.
7
Install the toner cartridge.
Align the right and left projections (
8
Close the toner cover, and lower the operation panel.
If you cannot close the toner cover
Make sure that the toner cartridge is inserted properly. Forcing it closed may cause damage.
LINKS
Before Replacing the Toner Cartridge
) with the toner cartridge guides, and push securely all the way in.