Why won’t my barcode scan?
There are many things that prevent a barcode from scanning. Even the
best printers can produce improperly formatted and/or unreadable
barcodes. Ribbon wrinkles, blown printer heads, and incorrect heat
settings can cause a thermal printer to malfunction. Laser printers may
be using too much or too little toner, leading to bar width growth
problems. The barcode may even be formatted incorrectly, independent of
printer problems and thus not conform to data format conventions such as
those specified by GS1
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