Canon LBP3310 User Manual page 341

If the paper feeder is installed, pull out the paper cassette of the paper feeder
also.
Even if you can see the paper here, do not remove it but proceed to Step 6.
6
Open the front cover.
While pressing the open button on the top of the front cover a, open it gently b.
A B C D E
8
a
b
8-10 Paper Jams