How to mend Samsung Cash Register Error

change tax for er4940 samsung?

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

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

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

Cash Register?

Memory All Clear a Samsung ER-4615?

does not print full amount on till entry?

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

How do I mend Samsung ER4615?

cash registers ER-4615?

samsung 4615 cash reg ?

closed message? samsung er-4615?

samsung er290 cash register?

How do I clear an error code pp?

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

Samsung er4615 closed?

I need to reset my Samsung Cash Register?

Samsung ER 4915 not working?

fixing key issues on a samsung ER 5100?

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?

My Samsung ER 650 screen is black?

Battery?

Samsung er290?

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

samsung er150?

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

Samsung ER-5100?

how can i fix my Samsung ER290 cash register?

How can i clear extra lines appearing on screen?