Valid Characters

Explanation

• Code 128 is a high-density alphanumeric symbology.
• Used extensively worldwide.
• Code 128 is designed to encode 128 full ASCII characters.
• The symbology includes a checksum digit.
• Code 128A handles capital letters
  Code 128B handles capital letters and lowercase
  Code 128C handles group of 2 numbers
• Your browser may not be able to write the special characters (NUL, SOH, etc.) but you can write them with the code.