10 Replacing toner cartridges and staples and emptying punch scrap box10-24 CS240/CS231To replace the staple cartridge in Finisher FS-5171 Open the front door.2 Grab handle FN7, and then pull out the stacker unit.– Slowly pull out the stacker unit as far as possible.3 Remove the staple cartridge holder.– Hold the lever on the staple cartridge holder, and then pullthe holder down to remove it.