To erase volatile memory or buffered data, turn off the printer.
To erase non‑volatile memory or individual settings, device and network settings, security settings, and embedded solutions, do the following:
From the control panel, navigate to:
Settings > Device > Maintenance > Out of Service Erase > Sanitize all information on nonvolatile memory
For non‑touch‑screen printer models, press 
to navigate through the settings.
Select either Start initial setup or Leave printer offline.