How to mend Samsung Er655

my samsung er-150 cash register makes a high pitched alarm sound on switch ?

samsung er290 cash register?

cash registers ER-4615?

My Samsung ER 650 screen is black?

Cash Register?

Why does the error code E1 show on screen and high pitched?

Samsung er290?

I need to reset my Samsung Cash Register?

How do I clear an error code pp?

fixing key issues on a samsung ER 5100?

Operator's Manual - Samsung ER-290 Electronic Cash Register?

On screen is 'PCo' and nothing is functioning, how to correct?

Battery?

Memory All Clear a Samsung ER-4615?

does not print full amount on till entry?

How do I get the register key to turn to "P" for updating the sales tax?

samsung er150?

Samsung er4615 closed?

change tax for er4940 samsung?

Samsung ER 4915 not working?

Paper in my Samsung ER4915 jammed. Now it doesn't work at all?

samsung 4615 cash reg ?

How do I mend Samsung ER4615?

closed message? samsung er-4615?

how can i fix my Samsung ER290 cash register?

I can't open the drawer. It has a squeal like a key is stuck?

clear E3 error code on samsung er-290 cash register?

How can i clear extra lines appearing on screen?

Samsung ER-5100?

can non-upc codes function be disabled for samsung sps 520 register?