Canon FAX-L800 User Manual page 276

If the trailing edge of the jammed paper is under the cover, use both hands to
pull the paper up. After the trailing edge is free, pull the jammed paper forward
carefully to remove it.
Be careful not to make your hands dirty with the unfixed toner.
Avoid touching anything inside the fax.
15-6 Maintenance & Frequently Asked Questions
If you see any paper in this area, pull it in the direction indicated by the
arrow.
Chapter 15