This article applies to Wasp Printers and Wasp POS pole displays.
Issue:
Updating from Windows 8 to Windows 8.1 can leave your hardware inoperable. Some users may not be able to print or use their pole display.
Resolution:
Reinstalling the drivers for your hardware should resolve the issue.
Wasp WPL Printer Driver
https://support.waspbarcode.com/kb/articles/91
How to install the Wasp Pole Display
https://support.waspbarcode.com/kb/articles/740
Thermal Receipt Printers: Printer Driver
https://support.waspbarcode.com/kb/articles/410