ZPL4001 — Barcode without data

A barcode command reaches ^FS without a ^FD. There is nothing to encode, so the preview and the printer skip the barcode entirely.

Label that triggers it

^XA^FO50,50^BY2^BCN,100,Y,N,N^FS^XZ

Finding: ZPL4001 · line 1:16 — ^BC has no data (^FD); the barcode will be skipped

Open the broken label in the editor →

How to fix it

Add ^FD with the data to encode between the barcode command and ^FS.

Corrected label

^XA^FO50,50^BY2^BCN,100,Y,N,N^FD12345678^FS^XZ

Open the corrected label in the editor

Commands involved

^BC · ^FD

Related rules

ZPL4002 EAN-13 data is not 12–13 digits · ZPL4003 GS1 data without GS1 mode (no FNC1) · ZPL4004 GS1 check digit is wrong · ZPL4005 GS1 AI value has the wrong length · ZPL4006 GS1 check digit set by the printer

In CI

npx labelixa validate "labels/**/*.zpl" lints your files and prints this page's address next to each finding. /docs/cli

Lint your ZPL now