Datalogic Scanning QUICKSCAN QS6500BT - Manual (Page 90)

Symbologies
6-2 QuickScan ® QS6500/QS6500 BT
UPC-A
The following options apply to the UPC-A symbology.
Disable/Enable UPC-A
When disabled, the imager will not read UPC-A bar codes.
Checksum Transmission
Enable this option to transmit the checksum along with UPC-A bar
code data.
Expand UPC-A to EAN-13
Enable this option to add a leading zero to a UPC-A bar code which
‘expands’ the data to the EAN-13 data format. Selecting this feature also
changes the symbology ID to match those required for EAN-13.