GoDEX GS550 - Manual (Page 85)

6 - 27
UPC-E1
Most U.P.C. bar codes lead with the 0 number system. For these codes, use
UPC-E0 (page 6-24). If you need to read codes that lead with the 1 number
system, use the UPC-E1 On selection. Default = Off.
UPC-E1 On
EAN/JAN-13
* UPC-E1 Off
EAN/JAN-13 On/Off
* On
Off
Note: If you want to convert UPC-A bar codes to EAN-13 format, scan the UPC-
A Off bar code on page 6-21.