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Brant

Switch to Set B in GS1-128 when using ~m to calculate the MOD10 check digit


There is a mode switch to Set B in GS1-128 when using ~m to calculate the MOD10 check digit for an even set of numbers Code 128 Auto. This issue applies to all IDAutomation products that can use the ~m to calculate the MOD10 check digit. Normally in Code 128, if there are an even number of digits, there will be no switch to set B.


09-26-18     333 day(s) ago    

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Brant

Best Answer

In some cases ~m processing causes a switch to B because the data is evaluated for code switching before the ~m is computed. The solution is to obtain the barcode number with the MOD10 check digit already added to the data before encoding the data into the barcode.

More information:
The switch to B is identified as dark bars that are 1-4-3 with exactly one white bar on each side of the “4” bar.
image

Posted 333 day(s) ago

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