It’s only required if you need raw serial data over USB instead of keyboard emulation.
You forgot to scan the "USB Virtual COM Mode" barcode. Fix: The scanner retains settings in flash memory. Scan the "Factory Default" barcode, then scan "USB Virtual COM Mode" again. Reboot the PC. Zebex Z6170 Driver 20
: A steady purple (red/blue) light indicates a hardware failure that may require professional repair. It’s only required if you need raw serial