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What Checksums are used for Code 39- 93- 128

Can you tell me what Checksums are used for Code 39, 93, 128.

Thank you

Hi Fred,


Thank you for contacting support. We’re looking into the matter and will get back to you soon.

Hi Fred,


Thank you for being patient. This is from the specifications of each barcode symbology. You can find some information from the following links:
http://en.wikipedia.org/wiki/Code_39#Code_39_mod_43
http://en.wikipedia.org/wiki/Code_128#Check_digit_calculation
http://en.wikipedia.org/wiki/Code_93

Please feel free to reply us back in case of any confusion or questions.