How to mend Samsung Er-4391s

I need to reset my Samsung Cash Register?

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

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

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

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

How can i clear extra lines appearing on screen?

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

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

Battery?

samsung er150?

How do I mend Samsung ER4615?

how can i fix my Samsung ER290 cash register?

samsung 4615 cash reg ?

does not print full amount on till entry?

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?

fixing key issues on a samsung ER 5100?

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

Memory All Clear a Samsung ER-4615?

change tax for er4940 samsung?

Samsung er290?

Samsung ER 4915 not working?

Cash Register?

How do I clear an error code pp?

closed message? samsung er-4615?

cash registers ER-4615?

My Samsung ER 650 screen is black?

Samsung er4615 closed?

Samsung ER-5100?

samsung er290 cash register?