I have a royal 580 cash register and when the register is off it has this on it - - - - - - and when the cash register is on it has this on it - - - - - - and it makes my numbers look like this a one looks like this -1 and a zero is a 8 and a seven is a 9 can someone please help me Thank you

Mylisa long, December 2012

If you can still make sales on it, you probably have a fault in the display drive circuit. You will probably need to take it to a dealer.
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If anyone needs a programming manual for a Royal 580, one of the users has it here:

http://the-checkout-tech.com/manuals/cashregisters/Royal_Alpha-580_instruction_programming_manual.html

Registerman, January 2013