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Code 128

Code 128 barcode is a high-density linear symbology that encodes text, number, numerous functions and the entire 128 ASCII character set.  This is a very effective symbology for use where a relatively large amount of data must be encoded in a relatively small amount of space.  Its specific structure allows for numeric data to be essentially, encoded at double-density.

 

The parts of the 128 barcode are the "quiet zone", one of three start codes, the data itself, a check character, a stop character and a trailing "quiet zone".

 

Quiet Zone - the clear area, free from marks, before and after the bars and spaces.  This allows the scanner to establish base values.

 

Start Code - is one of three codes that signal the start of a Code 128 barcode and specifically defines which character set will be be used.

 

Data - is encoded in strips of bars and spaces. It is done using a binary system to represent the encoding, using a "1" for a single-width bar and a "0" for a space.

 

Check Character - is a digit that verifies that the data just read, was correct  The check/sum digit is a calculation based on the sum of the values of each of the digits in the message that is being encoded.

 

Stop Code - is the bar-and-space sequence that signals the end of the barcode.

ALG Labels and Graphics is a custom manufacturer of pressure sensitive labels and decals celebrating over 50 years in business.  Our focus is delivering value to our customers with responsive service, quality products and low cost production.  Our mission is to make it easy for you to do business with ALG.

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Birmingham, Alabama 35233

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