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Mend Casio Cash Registers

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Mend Casio Error Cash Register Code

e4 error?

I have a casio 3400 cash register. When I turn it on I get error code e4. Can't do anything but turn it off. Any ideas?

Roger
September 2011
e4 means the key is in the wrong position.usually you can turn the key to x & press subtotal

dennis
September 2011

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Free repair help for Casio cash registers