Posiflex LS-1000 - Manual (Page 150)

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OMNIDIRECTIONAL SCANNER PROGRAMMING GUIDE
EAN/UPC + add on mandatory for 434/439
German Supplement requirement
optionally for other
To prevent confusion in code scanning, cover the
unwanted label and present the desired barcodes one by
one to the scanner.
EAN/UPC + add on mandatory for 419/414
Euro amounts Supplement requirement
optionally for other