How do I reset the Zebra ZD420 printer to Factory Defaults?

Instructions on how to reset the printers configuration to the factory default values for the Zebra ZD420

  1. Turn OFF the printer.
  2. While turning ON the printer, press and hold PAUSE + FEED
    While turning ON the printer, press and hold PAUSE + FEED
  3. Keep holding the PAUSE + FEED until the STATUS indicator is the only indicator lit.
    Keep holding the PAUSE + FEED until the STATUS indicator is the only indicator lit.

Source: “ZD620 & ZD420 Factory Reset” Zebra, https://supportcommunity.zebra.com/s/article/ZD620-ZD420-Factory-Reset?language=en_US