Amazon.com : ZEBRA GK420d Direct Thermal Desktop Monochrome Printer Print Width of 4 in USB Serial and Parallel Port Connectivity GK42-202510-000 : Label Makers : Office Products
Ask POSGuys: How to calibrate a Zebra label printer (GK420, GX240, GC420) - YouTube
How to Factory Reset PrepWizard Printer (ZD410) - YouTube
ZD620 and ZD420 Factory Reset
Zebra Printers for sale in Roanoke, Virginia | Facebook Marketplace | Facebook