How do I program a negative department?

The reason I need a negative key is to issue credits to customers deducting it from the sale amount. I buy and sell books so oftentimes a customer has a credit for the books I bought but I want to deduct this from the sale of the new books he is purchasing.

Janet C.
March 2013

How do I program and create negative department for refund on XE-A102 sharp

caroline
May 2011

Why don't you just turn the key to void mode and enter the item you want to void, then the payment type?
It's easier than trying to make negative departments.
Make sure you remember to turn the key back to reg afterwards.

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If anyone needs a Sharp XE-A106 manual, C-tech collective have it here:

http://the-checkout-tech.com/manuals/cashregisters/Sharp_XE-A106_operation_manual.html

Registerman
March 2011