Open door C.
Open door G.
Pull out the staple cartridge holder.
Lift the staple guard, and then remove the loose staples.
Note: Do not insert the staples that came out of the cartridge.
Close the staple guard.
Insert the staple cartridge holder.
Close doors G and C.
Remove the loose staples in door J to continue printing and stapling documents.
Remove the paper that is stuck in the staple finisher bin to continue stapling and printing.