Why won’t CardKing work with flat bed scanners?
Flat bed scanners send a scattered array of omni-directional laser lights with the hope that one of the lasers catches or scans a barcode in their proximity, like a shotgun effect. A number of these lasers are actually out of alignment and that is why you sometimes have problems scanning products. All of these laser lights tend to reflect and refract on the highly polished, reflective surfaces on iPhones and iPods, creating laser light havoc which in simple terms is known as interference. Handheld lasers are unidirectional, and therefore you can direct them at a 90 degree angle to the surface, thereby reducing any surface reflectivity.
