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Programming SAM4S cash register till receipt?
How to fix error code E39 (reg. valid) Sam4s ER-5200m?
How to fix it?
Register Closed?
How to program % discount on Sam4s ER-5200?
How do I clear the memory on my SAM4s ER5115II cash register?
sps1000 non preset key use?
VAT rate change?
My sam4s Er-5200 sequence error will not go off ?
Our Sam4S ER5100 has high pitched noise on switch on?
how can i fix my sam4s er420m?
How can I mend ER-5240M?