This is a python script (written in Python 2.7) to print barcode labels (tested and works on Zebra label printers). I developed this script to print barcodes for laboratory sample tubes where I worked ...

To solve issues printing 2 columns barcode label on Zebra Printer GK420t or some compatible devices with ZPL II. The 'printbar.php' contains header ^XA and footer ^XZ ZPL II command, as you see on ...