Canon DR-3080CII - Manual (Page 54)

52 Using the Scanner
4.
Raise the upper unit as far as it will go.
5. Remove the jammed paper inside of the scanner.
When the jam occurred in the feed section
When the jam occurred in the eject section
IMPORTANT
Do not pull hard on the jammed sheet; remove it gently. If the sheet does rip,
be sure to remove all of the remaining pieces of paper.