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Possible Causes:
• Small X dimension (<0.10”) makes narrow spaces appear too narrow.
• Verifier aperture too large
Potential Solutions:
• Make narrow spaces slightly wider than narrow bars (if possible).
• Check for proper verifier aperture size (see Wand/Mouse Aperture
Selection Table on page
21.)
Problem: High Defects
Possible Causes:
• Ribbon/substrate mismatch (thermal transfer)
• Dirty printer
• Incorrect toner (laser)
• Verification aperture too small
Potential Solutions:
• Ensure proper ribbon/substrate match (check with suppliers)
• Clean printer
• Match toner to laser imaging drum (check with manufacturer)
• Check for proper verifier aperture size (see Wand/Mouse Aperture
Selection Table on page
21)
Dimensional Tolerance Failure or Cautions
Possible Problems:
• Bars exhibit excessive uniform growth
• Bars exhibit excessive uniform reduction
Potential Solutions:
• Increase or reduce ink and/or pressure (as appropriate) for wet ink
processes
• Check with film master manufacturer for bar width reduction/growth (wet
ink processes)
• Increase or reduce heat (as appropriate) for thermal printers
• Check for proper “break in” or excessive use of matrix impact ribbons.
Error messages
There are a few error messages you may see that are unrelated to the symbol
being verified. The error messages and causes are shown below.
Scanning Speed
34