Code 128A scanned but 128B doesn't

I'm currently creating some shipping labels using Code 128 for the barcode. I'm using Azalea UFL's and fonts to create the barcodes. When I used the 128A UFL to encode the text everything worked fine and the scanner read the information but when I switched to 128B all of a sudden it wouldn't scan. Does anyone know what the problem might be? There are 5 128 fonts narrow, very narrow, wide etc and I've tried them all but to no avail. Help very much appreciated.
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You have to use the font that your scanner can read. Usually fonts are not compatible with every machine. if the 128a worked why are you switching to 128b. I found the font for our barcode problem like you did with trial and error so it is painful little bit, but finally it will work.

Barcode Scanners can be configured to read any fonts. But once its set to read a font. it stays to identify this single font unless reconfigured. This scenario also applies to other settings like droping or retaining the check digit. I think you should deside what font you really want to use. You may and i think you want to use the font that is being read by your scanners on hand. That is if you dont want to reconfigure all your scanners. :)

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