Replacing a Staple Cartridge
Open the cover in the right side of the Finisher.
Pull out the Staple Cartridge from the Finisher.
Lift an empty Staple Case while holding its both edges, then pull out it from the Staple Cartridge.
Remove the spare Staple Case from the holder.
Mount a new Staple Case in the Staple Cartridge.
Insert the Staple Cartridge until it clicks.
To use it in future, replace the spare Staple Case.
Close the cover in the right side of the Finisher.