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
Summary of Contents for Quick Check PC600
Page 1: ...Quick Check PC600 Bar Code Verifier User s Guide ...
Page 6: ...5 ...
