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Decode FNC Symbols
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The GS1 association suggests using FNC characters to decode some symbologies, including Code 128 and Code 128. Four types of FNC symbols (FNC1-4) are supported. FNC1 is the most widely used one that is intended for GS1 Application Identifier (AI) marking. When a barcode does not relate to any of GS1 types (e.g. Code 128 or GS1 Code 128), the decoder processes FNC symbols as <FNC#>. These symbols can be removed from decoding results by passing the False value to the setStripFNC method.
