My Samsung ER 650 screen is black?
How can i clear extra lines appearing on screen?
Paper in my Samsung ER4915 jammed. Now it doesn't work at all?
my samsung er-150 cash register makes a high pitched alarm sound on switch ?
change tax for er4940 samsung?
How do I clear an error code pp?
how can i fix my Samsung ER290 cash register?
does not print full amount on till entry?
On screen is 'PCo' and nothing is functioning, how to correct?