Have you finished removing it completely from the old device, once you've removed it, you then have to print off the deactivation complete code, then...
Found it - but it looks like it's the "User settings" you can lock - change softswitch 71 to HEX 08 - but you have to use the admin password - sorry...
I can't remember how, but I'm sure you can lock the "Utility" section with a password, and then have a separate password for "Administrator setting"...
if you're going to transport it in a vehicle, try and tie it down, but don't bend the scanner. I've seen a machine, that wasn't tied down, somersault...
Large MFPs and WSD/XPS are big No-no.
Maybe for smaller A4 USB home desktop printers they are OK but IMHO no MFP with LAN port should be using them....