Sharp MX-5500N User Manual page 553

Removing a staple jam from the finisher
To remove a staple jam, remove the staple case from the finisher unit and then follow the steps below.
To remove or reinsert the staple case of the finisher unit, see
1
2
Make a test print or copy in staple sort mode to verify that stapling takes place correctly.
"Replacing the cartridge in the
Lower the lever at the front end of the
staple case and remove the jammed
staple.
Remove the leading staple if it is bent. If bent staples remain, a
staple jam will occur again.
Return the lever to its original position.
55
finisher" (page 51).