Amazon.com: Zebra - GK420d Direct Thermal Desktop Printer for Labels, Receipts, Barcodes, Tags, and Wrist Bands - Print Width of 4 in - USB and Ethernet Port Connectivity (Renewed) : Office Products
Choosing & Assigning an IP Address Using Zebra Setup Utilities (ZSU)
How to configure the Zebra GK420D printer for printing Royal Mail's 2D barcode labels