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Hi, I just got myself a 2nd hand Casio SE-S300. The machine Reduction(-), Discount(%-) and Premium(%+) are all disabled. How can i enable these transaction key? thanks.

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  • dylanlee9 May 20, 2011

    i followed the instruction in the manual, PGM 3, 0622.
    all the 3 keys are not working at all.
    it seems like the 3 keys are disabled totally, as if there is no function program in the 3 keys.
    Please help.



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Hello, this is a link to the user manual for the Casio SE-S300 , it's onine as a PDF file, but it's also printable.

Posted on May 20, 2011

  • Lola Pop May 20, 2011

    Try to reset to factory setting, if it's still not working, it's probably the actual buttons (water damage / ware and tare).



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