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Code 128 is a variable length, one dimensional, very
high density and alphanumeric barcode symbology capable
of encoding uppercase and lowercase letters, digits,
other special functions and whole ASCII character set.
Code 128 is a compact barcode font
build in 1981 by Computer Identics.
Code 128 barcode symbology can be renowned as UCC-128,
GS1-128, EAN-128 and others.
Character set of Code 128 symbology
Code 128 barcode symbology hold
three dissimilar sets of characters
1.
Set A
– Set A contains uppercase alphabets, numeric values,
control codes, punctuation.
2.
Set B
– Includes capital letters, numeric values, lowercase
letters and punctuation.
3.
Set C
– Set C comprises of dual density numeric values varying
from 00 to 99.
Structure of Code 128 symbology
A
Code 128 barcode structure consists of the following
elements:
·
A begin character
·
Message to be encoded
·
Check digit or character
·
End Character
·
Termination bar (bar+space+bar)
Each character of Code 128 is characterized by six parts
(3 bars and 3 spaces).
Applications of Code 128 barcode
symbology
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Confirmation services use Code 128
barcode symbology to print barcode labels
·
Applied in industries
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Subset C is employed by USS Code 128 to print barcode
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