I have a samsung ER 2710 cash register. After entering the amount and trying to enter into any department key (such as pop, food etc.) i just get a beep and nothing happens. The beep stops when i hit the clear key. There is a EC displayed in the green display. Any ideas of what is wrong and how to fix it ?

bob, August 2011

you likely have a printer problem remove the ribbon and check for jamed pieces of paper

Victor Business Machines, August 2011

Your model is extremely old. I have no notes on it, but I think it is asking you to sign on. Make sure you have a clerk number signed on.

Registerman, August 2011