|SAM4s SPS-520R Cash Register|
- The R in the model number indicates a raised keyboard. This style of tactile keyboard in most often asscoitated to retail stores.
- The F in the model number tells you the model features a flat keyboard designed for food service.
- A 520 has both a receipt and journal printer and uses 2.25″ thermal paper
- A 530 has only one printer which uses 3 1/8″ thermal paper designed for a guest check or large receipt
Hope that helps.