Barcode Education

 

Barcode Symbologies

Code 93

Code 93 encodes the full 128 ASCII character set using 9 modules arranged into 3 bars with adjacent spaces. Two of the characters are check characters. Code 93 is similar to Code 39 but encodes more characters per inch. Code 93 encodes the full 128 ASCII character set and is encoded similarly to the extended Code 39.

 

Append

It is sometimes advantageous to break up long messages into multiple, shorter symbols. If the first character of a Code 93 symbol is a space (ASCII 32), then the scanned symbol is appended to a storage buffer. This operation continues for all successive Code 93 symbols with a leading space being added to previously stored ones. When a Code 93 symbol is scanned which does not include a leading space, it is appended to the buffer, the entire buffer is transmitted, and the buffer is cleared.

 



 

 

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