Canon imageRUNNER ADVANCE 6055 Maintenance Manual page 23

1
Press [ ].
If a screen with instructions on how to replace the toner cartridge appears on the touch panel display, this step is not necessary.
2
Push the toner replacement cover, as shown below.
The toner replacement cover is open.
3
Turn the locking lever to the right until it stops.
Make sure to turn the locking lever to the right until it stops. (Otherwise, you may not be able to remove the toner cartridge.)
1
Main Unit 1-11