Uniwell 875 Hi I have a uniwell 875 machine and have lost the manual and keys for this and also can we be advised on how to programm this. Many thanks

Question edited for clarity.

You can't. The key is simple but you need a key. You local supplier probably has spare keys. It does not appear to be a mainstream company here in North America.

https://www.google.com/search?q=Uniwell+LX+5750+replacement+keys

..

Hi. You have to use the special dealers manual which has engineers code to access programming. There is only one that I know of on the net at checkout tech
https://the-checkout-tech.com/manuals/cashregisters/Uniwell_DX-890_DX-895_DX-915_TX-870_TX-875_SX-700_SX-705_SX-800_SX-805_SX-7000_SX-7505_SX-8500_SX-8505_programming_manual.html

Hi. The old Uniwell registers are rare and Uniwell don't give out information for them. I don't have reset info since I dropped Uniwell years ago but there is a site with almost every model. Try these:
https://the-checkout-tech.com/manuals/cashregisters/Uniwell_EX-560_EX-570_EX-575_Type_05_Programming_manual.html

https://the-checkout-tech.com/manuals/cashregisters/Uniwell_EX-560_EX-570_EX-575_operation_manual.html

hope that helps

Probably lost the program. They will do that if the battery went flat from sitting unplugged. There are many uniwell programming manuals at Checkout tech: https://the-checkout-tech.com/manuals/cashregisters/Uniwell1.php

you need driver to fix it

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Uniwell LX-5700 programming manual is here: http://the-checkout-tech.com/manuals/cashregisters/Uniwell_LX-5600_LX-5700_LX-5750_Type_05_Programming_manual.html
also, the Uniwell EX series programming manual: http://the-checkout-tech.com/manuals/cashregisters/Uniwell_EX-560_EX-570_EX-575_Type_05_Programming_manual.html
and Uniwell PX series programming manual: http://the-checkout-tech.com/manuals/cashregisters/Uniwell_PX-5700_PX-5750_PX-6600_PX-6700_PX_6750_Type_05_Programming_manual.html

TRy with 5523

how to program DX- 895