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 [...]
There is a widely held belief these days that bar code quality isn’t as big an issue as it once was—say back in the 80’s and 90’s. We have consistently and emphatically taken the position that [...]
A barcode tester is a purpose-built device that reads and evaluates the quality of a printed barcode. It produces a final grade that represents the quality of the barcode. It is important to use [...]
It is a widely accepted fact that printing bar codes on corrugated is a challenge. TAPPI and other trade groups recognize that the verification grade is seldom better than ANSI D (ISO 0.5-2.3) [...]
The Scan Reflectance Profile or SRP is a graphic representation of the changing reflectance values of a linear bar code across its width, from leading quiet zone to trailing quiet zone. As the [...]
A test barcode is an image with known errors and attributes built into it. A properly working verifier will detect these errors and attributes and report them accurately. This is the only way an [...]
We have talked in the past about why you would want to test a bar code—read more about that here. This article is all about the nuts and bolts of how to test a bar code. To begin with, you must [...]
Finding the right bar code tester can be challenging. You immediately have to dive into some pretty technical issues just to try and figure out what you need, and then you have to figure out who [...]
“Bar code quality just isn’t a problem anymore—not nearly like it was back in the ‘80’s.” I hear this all the time. The rationale is often that print technology is so much better than it was, and [...]
Most people think of verification as something that is done during the on-press part of the printing process. What a shame this sort of thinking is. Consider that there are two major steps in the [...]
