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how can i fix my sam4s er420m?
Programming SAM4S cash register till receipt?
Sam4ER-420M won't work?
I have a Sam4s ER-290, tape walks to the left when I run it making it jam?
how do I clear error code E00?
How to program % discount on Sam4s ER-5200?
How to remove E1 on Sam4s ER5115, key is turned on err occurs?
Our Sam4S ER5100 has high pitched noise on switch on?
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