^FS — Field Separator

Label StructureSupported

Plain English

Terminates the current field — tells the printer "that field is complete, commit it to the label". Fields are NOT implicitly closed: most field commands (`^FD`, `^GB`, `^GE`, etc.) need an explicit `^FS` to end them.

When to use

After every field — text, barcode, box, or any content element. Omitting `^FS` between two fields can cause them to merge or behave unpredictably depending on firmware.

Syntax

^FS

Example

^XA
^FO50,50^A0N,30,30^FDFirst^FS
^FO50,90^A0N,30,30^FDSecond^FS
^XZ

Each text field ends with `^FS`. Drop the first `^FS` and "First" + "Second" may merge.

Try it in the playground View all ZPL commands