This article details reasons a barcode may fail barcode verification.
Note: the most common reasons for failure is insufficient quiet zones or bar height
The required minimum bar height and quiet zones are determined by the barcode magnification (size).
Each barcode type has a required magnification range and dimensions refer to Barcode Basic User Guide
and GS1 General Specifications for more detail
Print Quality (Overall ISO grade)
9 parameters are tested to determine the barcode print quality, the overall ISO grade is result of analysing these results. Contact your printer
If the barcode fails we add Business Critical comments to explain what the failure is and how to correct it
If we notice something that may affect the barcode but has not caused it to fail, we will enter an Educational comment to prompt you to possibly making changes in the next print run
If you have any questions please contact firstname.lastname@example.org or call 0800102356 option 1
Understanding the Barcode verification report
Barcode verification report page 1
Version 2.0 revised 05 Feb 2020