Understanding Modulation in the Barcode Verification Report

Recently we wrote about the ISO parameter Decodability. Now we will discuss Modulation, which is also somewhat difficult to understand. But first we must understand the various ways in which reflectivity is measured and graded in verification. Modulation grades the variability in light and dark reflectance values  Minimum Edge Contrast is an expression of the […]

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Barcode Verifiers and Radar Detectors

 Several years ago I got a speeding ticket on the Pennsylvania Turnpike. I was driving an uninspiring car and it was, well, the Pennsylvania Turnpike, an inspiring stretch of  road. I explained without success  to the nice trooper that I had simply lost awareness of how fast I was going and he unceremoniously handed me […]

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Barcode Validation—the Newest Barcode Quality Attribute

 When barcode technology was new, the concept of barcode quality was limited to the print quality of the symbol. In the ensuing years barcode data  structure also became an important attribute of barcode quality. Barcode validation is now becoming a significant barcode quality attribute. What precisely is barcode validation? It means different things to different people. […]

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blue glass tubes

Barcode Verifier Types

 As barcode technology has matured and expanded into ever more, and more critical roles, barcodes are now found on a wider variety of materials and packaging  configurations: metallic tubes and other cylindrical shapes, metallic-like bags, pouches and labels, parts and sub-assemblies of every imaginable size, shape and substrate.  This means that barcode verification has also […]

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Changes in Barcode Verification

In the 35+ years that barcodes have been around in significant numbers, barcode verification has evolved and changed, right along with the barcodes themselves.  In the earliest days, barcode verification was relatively unknown; some pioneers in the industry even believed that verification was unnecessary. Looking back, it is difficult to reconstruct their logic, but it […]

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Decodability: How to Improve Barcode Quality

 Decodability is one of the tested and graded ISO parameters that determine barcode quality. Why test and grade a barcode for quality? This is done in order to predict with  reasonable accuracy that the barcode will decode successfully using any type of scanner anywhere on the planet. That’s a tall order and that is one […]

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How do you know your barcode will work?

Whether it is the barcode on your product, or the barcode you printed for a customer, you are confident it should work right. Well maybe your confidence is misplaced; if  something goes wrong, soon enough you will know and it will be a memorable experience—one you do not want to relive. How do you find out for […]

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The Unhelpful Vendor

A global supplier to the packaging industry recently received a quality alert from an important building materials customer: their barcodes were failing in US home improvement stores. The UPC barcodes were not working on the packaging for certain products, but working fine on others. What was the problem? A Deepening Mystery Branding and product differences required […]

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The Ten Worst Barcode Bloopers

  The irony in this article is that barcodes were invented to prevent errors. That is probably what makes barcode bloopers so interesting. What are the ten worst barcode bloopers since we last wrote about it a year ago? That is debatable and I invite you to agree or disagree with our choices but either […]

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Macro view of barcode

The Present and Future of Barcodes

 Since their initial use in grocery checkout, barcodes have entered into an amazingly broad range of uses,  including:  The full spectrum of consumer retail goods  Manufacturing process tracking (WIP) of everything from light and heavy equipment and vehicles,  appliances,  subassemblies and parts  The movement of all of the above in supply chains  Access control of […]

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