my samsung er-150 cash register makes a high pitched alarm sound on switch ?
clear E3 error code on samsung er-290 cash register?
Battery?
How can i clear extra lines appearing on screen?
Why does the error code E1 show on screen and high pitched?
change tax for er4940 samsung?
I can't open the drawer. It has a squeal like a key is stuck?
can non-upc codes function be disabled for samsung sps 520 register?
How do I get the register key to turn to "P" for updating the sales tax?