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Do barcodes always have to be printed black on white?

April 26, 2017barcodes Black printed white

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Do barcodes always have to be printed black on white?

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A. Scanners read the barcode by recognising the pattern of bars. To do this they must be able to distinguish between the bars and the background colour. Black and white gives the best contrast level, but it is possible to use other colours, which may compliment the package design.