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Add-On 2 3 numbers are transmitted: check number (c) and 2 informations (n).
The check number results from the remaining integer value of modul (4).
Example 1
Information
004
Remainder (0)
0
Example 2
Information
206
Remainder (2)
2
Example 3
Information
399
Remainder (3)
3
Example 4
Information
109
Remainder (1)
1
The check number always lies between "0" and "3"; it is not printed in the HRI line.
Barcode Printing 41