This is the motor kit for the journal take up on the SAM4s SPS-520R and SPS-520F cash register systems. This kit includes the gears required.
This is a simple repair and end-users replace this part when needed. If you are not comfortable you can arrange to send the register in for repair. If you repair this yourself make sure and unplug the register before starting. It is a good idea to make a back up of your data before beginning.