When the printer doesn't accept a label was printed correctly, it will attempt to re-print it.

Try the following steps to re-run "Automatic label identification" so printer can determine the label size.


① Turn power switch off . This clears any pending print jobs.  


② Turn power switch back on. Insert label from the back of the printer. Label will be automatically caught by the printer.


③ Press and hold the Feed Button until you hear one beep, then release. Printer will move the label back and forth to determine the gap size and other properties of your label.


④ When the label is positioned at the tear off point; continue to print. It should resume printing.


Check the video "Automatic label identification"