Canon LBP6780x Manual page 103

(2) While holding the lock release levers (A), slide the paper guides in the directions of the arrows.
(3) Remove the packing material.
Check !
Checking if the packing materials are removed
Check that the following packing materials are completely removed.
*
Make sure that all the orange tape is completely removed.
Dispose of the left packing materials according to local
regulations.