How to mend Samsung 6500-11

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

change tax for er4940 samsung?

fixing key issues on a samsung ER 5100?

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

how can i fix my Samsung ER290 cash register?

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

Samsung ER 4915 not working?

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

Battery?

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

samsung er290 cash register?

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

I need to reset my Samsung Cash Register?

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

How do I clear an error code pp?

Samsung er290?

closed message? samsung er-4615?

samsung 4615 cash reg ?

How do I mend Samsung ER4615?

cash registers ER-4615?

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

Samsung ER-5100?

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

samsung er150?

How can i clear extra lines appearing on screen?

Memory All Clear a Samsung ER-4615?

Cash Register?

Samsung er4615 closed?

My Samsung ER 650 screen is black?

does not print full amount on till entry?