Panasonic LP-M Series, Operation Manual, Page: 279 / 308

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CODE128
Bar Code Symbol (entire width of bar code)
6. Bar Code Height
3. Data Character 5. Check Character
2. Start Character 2. Stop Character
1. Quiet Zone 1 Quiet Zone
Name Description
1 Quiet Zone Certain spacing is necessary for the back and forth to scan the barcode.
2 Start/Stop Character The particular characters to indicate the start and end of the bar code.
CODE128 has three types of start code (A, B, and C) and one stop code.
Depending on the start character, the character code set is defined as “Code A”, “Code B”
or “Code C”.
The code set is determined by data character contents.
The laser marker automatically selects the code set according to the input data.
3 Data Character On CODE128 bar code, a character consists of 11 modules (minimum unit consisting of
bars and spaces). It has four types of element width from 1 to 4 modules.
4 Function Character Entering “FNC1” just before the data characters indicates that the code is UCC/EAN128
(GS1-128).
5 Check Character Used to check if the read data is correct or not by putting the value calculated with the
certain formula (modulus 103) on just before the stop character for re-calculation.
6 Bar Code Height Usually 5 mm or 15% of the symbol width excluding the quiet zone, whichever is greater.
Content of code data
• The CODE128 bar code can indicate 128 characters of ASCII code consisting of numerical characters, alphanumerical
characters (capitals and small letters), symbols and control code.
ME-LPMSZ-OP-7