Sony UP-20 Series-Use Correct Paper/Ribbon

UPC-21L makes a LARGE size print: 5 3/4” x 3 9/10”
UPC-21S makes a SMALL size print: 3 1/2” x 3 9/10”

Each print pack is entirely DIFFERENT and CANNOT be intermingled.


Each print pack has a ribbon that houses 3 sensor chips on the bottom.  To identify the correct ribbon and paper:


  • UPC-21L (large) – sensor chips are Silver/Black/Silver
  • UPC-21S (small) – sensor chips are Black/Silver/Black