Brother QL820NWBC User Manual page 87

Printing Labels Using P-touch Template
g
Scan a barcode that contains the data you want inserted into the barcode object in the selected
downloaded template from step f.
Example:
h
Scan the "Begin printing" barcode to send the command to start printing.
i
The barcode in the printed template will contain the data from the barcode scanned in step g.
Example:
(CODE128/9-digit)
5
77