Hi. Uniwell do not release this information to the public. You need the codes from the programming manual. One of the users has the manual here:
http://the-checkout-tech.com/manuals/cashregisters/Uniwell_UX-60_UX-60F_UX-70_UX-70F_UX-75_UX-75F_UX-M720_type_05_programming_manual.html
hope this helps :)
Registerman, August 2014