How to mend Samsung Er-150/er-220

does not print full amount on till entry?

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

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

Samsung er290?

how can i fix my Samsung ER290 cash register?

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

Battery?

How can i clear extra lines appearing on screen?

Samsung ER 4915 not working?

Samsung ER-5100?

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

samsung 4615 cash reg ?

I need to reset my Samsung Cash Register?

cash registers ER-4615?

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

How do I mend Samsung ER4615?

Samsung er4615 closed?

Cash Register?

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

samsung er150?

My Samsung ER 650 screen is black?

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

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

How do I clear an error code pp?

fixing key issues on a samsung ER 5100?

samsung er290 cash register?

closed message? samsung er-4615?

change tax for er4940 samsung?

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

Memory All Clear a Samsung ER-4615?