We carry most of the replacement parts for the SAM4s SPS-345 cash register. If we don't have them in stock we can drop ship from the factory pretty quickly. Please feel free to call us to enquire about parts availability at 800-863-2274
There are not many moving parts in the modern cash register to fail but from time to time you may need to make a minor repair. Please be sure to unplug the register before making any repairs and we strongly encourage you to make a current back up before proceeding with a repair.