Canon 3433B010 Basic Manual page 19

Clear any jammed paper from inside the Top Cover
1
Open the Top Cover and move the Carriage to the left or
right side manually, away from the jam.
Do not move the Carriage over jammed paper. This may damage the Printhead .
2
Clear any jammed paper from inside the Top Cover .
After removing the paper, make sure there are no other
scraps of paper in the printer.
3
Close the Top Cover .
4
Pull the Release Lever forward.
19
If Roll Paper Jams