On screen is 'PCo' and nothing is functioning, how to correct?
Battery?
My Samsung ER 650 screen is black?
fixing key issues on a samsung ER 5100?
can non-upc codes function be disabled for samsung sps 520 register?
my samsung er-150 cash register makes a high pitched alarm sound on switch ?
I can't open the drawer. It has a squeal like a key is stuck?
samsung er290 cash register?
Why does the error code E1 show on screen and high pitched?
clear E3 error code on samsung er-290 cash register?
Samsung er4615 closed?
Paper in my Samsung ER4915 jammed. Now it doesn't work at all?