Lexmark MX931
Open the finisher door.
Remove the staple cartridge holder.
Remove the empty staple cartridge.
Unpack the new staple cartridge.
Insert the new staple cartridge until it clicks into place.
Insert the staple cartridge holder.
Close the door.
Replace the empty cartridge in the staple finisher to continue the automatic stapling of your documents.
Follow these steps to install the staple, hole punch finisher into your printer properly.