You can exchange your Magtek Mini MICR RS 232 machine for a refurbished model with a one year warranty. The requirement is that your exchange must power up and not have main board damage such as a power surge or moisture. This must be part number 22522001 or 22522003. If you do not meet these requirements you will be charged the difference between the exchange price and the refurbished price but you will be contacted first. This must be the exact model or you will be charged the difference between the exchange price and the refurbished price plus and applicable sales tax.