Code 93

Code 93 contains the following 43 usable characters

• Numeric digits 0 - 9

• Uppercase letters A-Z

• Symbols % + $ / . -

• The space character

Additionally, it supports the encoding of the entire 128 ASCII character set with the use of shift characters.

Each character in a Code 93 symbol is made up of three bars and three spaces, each of which can be single, double, triple, or quadruple thickness. These six elements are spread out over a space of nine modules.

Code 93 contains the following symbology structure:

• Leading quiet zone

• Start character

• Input characters representing data

• Two check digits

• Stop character

• Trailing quiet zone