Barcode Verification in the History of Barcodes

It was a warm June day in 1974 when a seemingly ordinary pack of Wrigley’s Juicy Fruit Chewing Gum changed the course of retail history.

At Marsh’s Supermarket in Troy, Ohio, a Universal Product Code (UPC) Scanner by NCR Corp., a beacon of retail technology of its era, scanned the world’s first barcode. It might’ve seemed like an everyday action, but in that moment, an entire industry was born.

As industries quickly began adopting this innovative technology, it became clear that there needed to be a uniform standard.

Enter the Uniform Code Commission (UCC) of the early 70s. They laid down the first barcode symbol verification guidelines, famously known as “Traditional Measurements”.

Among the visual checks, it required:

• The correct characters in the code.
• An appropriate contrast.
• Standardised widths for bars and spaces.
• Adequate quiet zones.
• A consistent barcode height.

Yet, as with all pioneering efforts, imperfections surfaced. Printing companies found that these guidelines sometimes flagged good barcodes as bad and vice versa. It was evident that a more sophisticated approach to barcode verification was essential.

The American National Standard Institute (ANSI), recognising the inadequacies, took on the monumental task of refining the barcode quality standards. After eight diligent years of research and discussions, in 1990, they unveiled the ANSI X3.182-1990 BarCode Print Quality Guideline.

The game-changer? This guideline based its checks on what the scanner electronically detected, rather than relying solely on human visuals.