A bar code symbology that is discrete, variable length, and self-checking. It requires loose printing tolerances. It can be used interchangeably with Code 39 when higher density printing is required. The character set is the same as Code 39: A – Z uppercase, 0 – 9, dollar sign ($), period (.), slash (/), percent (%), space ( ), plus, (+), and minus (-). It can be extended to full 128 character ASCII by use of a four-character encoding scheme (see full ASCII). Its maximum density is 14.8 characters per inch.

Code 93 is the complimentary version of Code 39 and allows labels to be approximately 30 percent shorter than Code 39. EXAMPLE OF A CODE 93 BAR CODE

A code developed by Intermec that includes a character set that is identical to Code 39. Each character is constructed from nine modules arranged into three bars with adjacent spaces. Nominal bar code density is 13.9 characters per inch.

a code developed by the Intermec Corporation that encodes exactly the same characters as Code 39. Each data character is represented by 9 modules which make up three bars and three spaces. Two checksum parameters are recommended to increase code security.

variable length, continuous, alpha-numeric bar code. Code 93 encodes all 128 ASCII characters. Forty-three of code 93's character set correspond to code 39's character set, and 4 additional characters are used as control characters when encoding the full ASCII character set in code 93's expanded mode. Each character is encoded with 9 modules composed in a pattern of 3 bars and 3 spaces. Each bar and space width may be one, two, three or four modules wide.

Code 93 is a barcode symbology designed to provide a higher density and data security enhancement to Code 39. It is an alphanumeric, variable length symbology. Code 93 is used primarily by Canadian postal office to encode supplementary delivery information.