If you are using a standard pricing gun, hold the gun’s handle with the sticker dispenser pointed away from you. Now pull the lever tabs on both sides of the upper cover and pull them towards you. It will remove the open cover with a click. Always remove about ten labels off the new roll before adding it to the gun. Place the roll in a dedicated section and make sure it is held well in the place. Now close the cap with a click and start using it.