How do I enable or disable the Cartridge Protection feature on the HP LaserJet Pro MFP M227?

To enable Cartridge Protection from the control panel, go to Setup > System Setup > Supply Settings > Cartridge Protection and select 'Protect Cartridges,' then confirm by selecting 'Continue.' To disable it, follow the same path and select 'Off.' Be aware that once enabled, all subsequently installed cartridges are automatically and permanently protected — turning the feature off does not unprotect cartridges that are already installed. (Pages 31–32)