How to mend Samsung Er6540

How do I mend Samsung ER4615?

samsung er290 cash register?

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change tax for er4940 samsung?

Battery?

Samsung er290?

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

does not print full amount on till entry?

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

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

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Memory All Clear a Samsung ER-4615?

My Samsung ER 650 screen is black?

How can i clear extra lines appearing on screen?

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

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

I need to reset my Samsung Cash Register?

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

Samsung er4615 closed?

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

how can i fix my Samsung ER290 cash register?

cash registers ER-4615?

Cash Register?

How do I clear an error code pp?

closed message? samsung er-4615?

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