 
                We may have found other answers which could help you.
Click here for Turn Switch Annoying 
                How can i clear extra lines appearing on screen?
 
                Samsung ER-5100?
 
                I need to reset my Samsung Cash Register?
 
                Cash Register?
 
                my samsung er-150 cash register makes a high pitched alarm sound on switch ?
 
                Why does the error code E1 show on screen and high pitched?