Your laser printer can do more than just print. Enhance your printer with the SF-4000 Finisher and instantly increase your productivity by automating document stapling. Ideal for businesses with high print volumes that need a space-saving and professional finishing option. The compact SF-4000 Finisher installs quickly and easily on your Brother printer and is ready to use in no... time. The Brother SF-4000 Finisher comes factory-fitted with staples so you can get started straight away. Your stapled documents are neatly staggered in the paper output tray so that stacks can be removed one at a time with ease.