Labelproof/rules
will failDT-02data

Accented characters print as mojibake

This label contains non-ASCII characters with no ^CI28 set. They print as mojibake.

Add ^CI28 after ^XA.

A label that trips it
^XA^FO50,50^A0N,30,30^FDMÜNCHEN^FS^XZ
What the check looks for

Non-ASCII bytes in ^FD with no ^CI28 (or later) in effect.

What Labelproof says about it2 findings · DT-02 highlighted
will failLY-02^XA · offset 0 · label 1

Neither ^PW nor ^LL is set. Both fall back to a value stored in the individual printer, not to a value in the spec — so the same ZPL prints differently on two printers of the same model.

Set ^PW and ^LL explicitly in every format.

the rule on this page
will failDT-02^FD · offset 3 · label 1

This label contains non-ASCII characters with no ^CI28 set. They print as mojibake.

Add ^CI28 after ^XA.

Essential for any non-English label.

Why this matters

Essential for any non-English label.

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