Datalogic Gryphon I GFS4400 Quick Reference Manual page 14

Setting Up the Reader
To simulate a serial interface, scan the bar code below:
$P,HA47,P(CR)
IMPORTANT
USB-OEM (for use with OPOS/UPOS/JavaPOS)
4
Interface Selection: USB-COM
Download the correct USB COM driver from:
http://www.datalogic.com.
Select USB-OEM
Gryphon™ GFS4400