If you need to be sure that your printed barcode will scan everywhere, how can you check it? Using a scanner to test the barcode will only tell you if it can be read by that particular scanner, but a barcode verifier will allow you to grade each barcode’s quality.
Most verifier models available today are offline, meaning they are handheld or desktop models used outside of a production line. To keep pace with production, most producers will only verify a sample of codes in any batch. The sampling standard is determined by the producers’ quality control statistical requirements and sometimes customer specifications. The problem with random sampling is that barcode quality issues are often not caught in real time. Codes not sampled are not available for diagnostic examination after problems are discovered.
Inline verifiers, or verifiers installed in a fixed position on a production line, have traditionally been too slow to handle most line speeds since the verification process takes much longer than simply reading a code. Until recently, inline verifiers have also been limited to verifying only 1D linear barcodes. Developing an inline verifier is no small task but a few companies have developed products that can now verify codes, including 2D codes, at much faster speeds.