Sharp F0-2080, need to do full system reset, how?

[Cheetah8799]

Does anyone here know if Sharp printers have a generic reset method to get it back to the factory defaults? The f0-2080 has a built in network card, but we can't get it to reset itself and get a new address from DHCP and can't get a config page printed to show it's current settings. None of the manuals from Sharp have been helpful, and my google-fu has failed me.

Thanks for any advice.