will failST-01^XA · offset 0 · label 1
The label format is not opened and closed correctly. An unterminated format sits in the printer buffer and nothing prints at all.
Open every format with ^XA and close it with ^XZ. Never nest ^XA.
The label format is not opened and closed correctly. An unterminated format sits in the printer buffer and nothing prints at all.
Open every format with ^XA and close it with ^XZ. Never nest ^XA.
^XA^FO50,50^A0N,40,40^FDHELLO^FS
Field commands appear outside any ^XA…^XZ pair, OR a ^XA is encountered while a format is already open (nesting), OR a format is never closed by ^XZ.
The label format is not opened and closed correctly. An unterminated format sits in the printer buffer and nothing prints at all.
Open every format with ^XA and close it with ^XZ. Never nest ^XA.
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.