Do bar codes need to be printed as close as possible to their nominal sizes?
No. The printing process and the material used will determine the size of the bar code that is more appropriate for the given packaging. The light and dark bars should be recognized by the scanner. Lower printing quality requires bigger symbols. The larger the symbol size, the larger the tolerance for distortions, that is, a smaller probability of problems related to the conventional printing processes (off-set; flexography; typography; etc).
