Argox AS-9500 - Manual (Page 75)

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UPC-E0
Most U.P.C. bar codes lead with the 0 number system. For these
codes, use the UPC-E0 selection. If you need to read codes that
lead with the 1 number system. Default = On.
UPC-E0 Expand
UPC-E Expand expands the UPC-E code to the 12 digit, UPC-A
format. Default = Off.
Addenda Required
When Addenda Required is set to on, the imager will only read
UPC-E bar codes that have addenda.
Addenda Separator
When this feature is on, there is a space between the data from the
bar code and the data from the addenda. When turned off, there is
no space.
Check Digit
Check Digit specifies whether the check digit should be
transmitted at the end of the scanned data or not. Default = On.
Number System
The numeric system digit of a U.P.C. symbol is normally
transmitted at the beginning of the scanned data, but the unit can
be programmed so it will not transmit it. Default = On.