2. Press the orange lever of the staple cartridge holder and pull out the cartridge.
3. Squeeze the sides of the empty staple case and remove it from the cartridge.
Installing a Stapler Cartridge
1. Slide the tip of the new staple case into the cartridge and press the end into place.
2. Holding the orange lever, push the staple cartridge back into the holder until it clicks into place.