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Diagnostics and Troubleshooting
Judging Barcode Quality
6/28/17 ZT510 User Guide P1095460-001
Judging Barcode Quality
Figure 18 shows how printer settings such as darkness and print speed can affect the quality of
barcodes. Set the print darkness to the lowest setting that provides good print quality. Tests
such as the Print Test Format Option on page 220 and the Optimal Darkness and Speed Test
on page 225 can be used to help determine the optimal settings for your printer and media.
Figure 18 • Barcode Darkness Comparison
Too Dark Labels that are too dark are fairly obvious. They may be readable but not
“in-spec.”
• The normal barcode bars increase in size.
• The openings in small alphanumeric characters may fill in with ink.
• Rotated barcode bars and spaces run together.
Slightly Dark Slightly dark labels are not as obvious.
• The normal barcode will be “in-spec.”
• Small character alpha numerics will be bold and could be slightly filled in.
• The rotated barcode spaces are small when compared to the “in-spec” code, possibly
making the code unreadable.
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