HP LaserJet Enterprise flow M830 Multifunction Printer series - Manual (Page 44)

2. Push the button on the lever, and then rotate the
toner-cartridge lever to the down position.
3. Grasp the handle of the used toner cartridge and
pull out to remove it.
4. Remove the new toner cartridge from its
protective bag.
34 Chapter 3 Parts, supplies, and accessories ENWW