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How can i reprogram my cash register NX5400-02?

i would like to replace the current items and prices in the cash register with new items and prices. How do i do that.
Robert, March 2012
This is a very rare machine. I can't find any programming information. You may have to resort to a programming manual. c-tech has one:

http://the-checkout-tech.com/manuals/cashregisters/Uniwell_NX-5400_type_01_programming_manual.html

Registerman, March 2012