Fuji Xerox Versant 3100 Press Optional Units Manual page 52

(6) Make sure there is no waste left inside, especially, beneath the frame that is located
behind the container.
Use the poker to remove any waste left inside.
Refer
3.
Close the cover.
4.
Check the curl direction of jammed paper, and correct paper curl.
Refer
52
Optional Units Manual
For information about the container, refer to "5.2 Trimmer Waste Container" (p.43).
For information about the Curl Correction, refer to "2.2 Curl Correction" (p.19).