Barcode Glossary Q


Barcode-Glossary Q

  • Quiet Zone, Light Margin, Clear Area

  • The zone before the start and after the stop character of a barcode symbol that is free of any interfering features and that has to surround the entire barcode symbol. The quiet zone is necessary for the barcode reader to adjust to the decoding (bar coding). Usually, a minimal width of 10 times X-module is used; however, the width must be at least 2.5 mm. In case of scanner applications with a large depth of field, a much higher value must be selected.