
Since round containers can rotate on the conveyor, it can be difficult to align the GS1 barcode on the label for automatic scanning on the packaging line. Many companies set up “scan tunnels” with multiple machine vision scanners to capture the barcode data, a complicated and expensive method. The helper code is printed before the container arrives at the labeling station. The Datamatrix is the perfect barcode type for this application; it can be read in any orientation, so the data in the helper code can be captured with a single imaging scanner head.