Your serial number can be found on the FCC/CE compliance label, which is located on your Summa equipment. Depending upon which Summa product you own, the location of the label varies. Scroll down this page to see where the serial number can be found on your equipment.
At the front of the machine, right below the power switch.
At the back of the cutter body, just to the right of the power and communications connections.
At the back of the cutter body, just to the right of the power and communications connections.
At the back of the printer, on the left leg.
SummaSign SL
At the inside-back of the cutter end-cap, on the side of your cutter that is opposite your control panel.