How to mend Cash Register Samsung

How can i clear extra lines appearing on screen?

How do I clear an error code pp?

how can i fix my Samsung ER290 cash register?

samsung er150?

does not print full amount on till entry?

change tax for er4940 samsung?

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

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

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

Samsung ER 4915 not working?

cash registers ER-4615?

Cash Register?

I need to reset my Samsung Cash Register?

Samsung er290?

My Samsung ER 650 screen is black?

Battery?

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

samsung er290 cash register?

Samsung ER-5100?

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

samsung 4615 cash reg ?

Samsung er4615 closed?

fixing key issues on a samsung ER 5100?

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

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

How do I mend Samsung ER4615?

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 ?

Memory All Clear a Samsung ER-4615?

closed message? samsung er-4615?