If your barcodes aren't scanning, reduce the print speed to "3" or "4" in the settings.
Increase the "Darkness" setting in Printing Preferences (try 8 or 10). Run the Calibration (Step 3) again. Paper Jam Ipiel-la3 Manual
Ipiel-la3 Manual: The Complete Setup and Troubleshooting Guide If your barcodes aren't scanning, reduce the print
The cover is not closed properly or the printer is out of paper. If your barcodes aren't scanning