Rockwell Automation 2755-G6-D Scanner with RS-232 Option - Manual (Page 70)

Symbologies
Chapter 8
8–7
UPC to EAN Translation
You can cause UPC labels to be transmitted as
EAN-13 labels. To enable UPC to EAN translation,
scan label QJ.
QJ
Enable UPC to EAN
Translation
To disable UPC to EAN translation, scan label QK.
QK
Disable UPC to EAN
Translation *