• Marking processes drift from nominal settings ultimately leading to unreadable marks
  • Verification is a metrology tool to ensure consistent mark quality
  • Verifier can tell not only that mark is readable but also how close it is to edge of readability
  • Analogy: Inspection vs. SPC (Statistical Process Control)
  • Verification allows adjusting marking process before bad marks are made

Why verify? Because all marking systems degrade over time.

Barcode Quality Over Time Using a READER to Check Quality

Without verification, some "bad" parts escape into the process.

Barcode Quality Over Time Using a VERIFIER to Check Quality

With verification, we prevent bad marks from ever being made.