We recently received an inquiry through the Barcode-Test website with this question: “Is it possible for two GS1-128 barcodes to have slightly different bar patterns, yet scan the exact same [...]
When you think about what is happening in the quality community as ISO 9001 and other quality protocols evolve into a risk management standard, you appreciate the unique perspective we have as [...]
What does barcode quality actually mean? Is barcode quality limited to the printed image or does it include the structure of the encoded data? What if the printed image and data structure are [...]
Everybody seems to agree that barcode verifiers are expensive—that’s why some “clever” people foolishly use scanners instead, and some others don’t verify at all. Eventually they will learn, but [...]
Barcode font problems are a common occurrence. Bar code fonts are a lousy way to generate a bar code. To prove our point, we did a very unscientific study by doing an online search of the term [...]
We received an urgent call from a company who found us online—they are printing a Code 128 symbol in black ink on a metal tag and it is not scanning consistently. Their verifier was [...]
The lab at Barcode-Test LLC receives a lot of compliance labels for verification. We see all sorts of problems, some of them quite unexpected, and we often wonder what the label printer was [...]
A friend sent me an image of a UPC symbol that “did not scan right” (his words) at the local big box store. As a barcode quality guy, I’m always on the lookout for problem barcodes; friends and [...]
The AIDC lab at the Russ College of Engineering and Technology at Ohio University has just released a months-long study of QR Code performance. Volunteers were asked to test a collection of QR [...]
You have never had a problem with a bar code, so you don’t do any barcode testing. Everything has been going fine for years. Your processes seem to be nailed down; you have never had a [...]
