Diagnostics and Troubleshooting
127
Ribbon Issues
For videos of some common procedures, go to http://www.zebra.com/zt400-info.
Broken Ribbon
Issue Possible Cause Recommended Solution
Broken or melted ribbon Darkness setting too high. 1. Perform the steps in Run the Print Wizard and Print
a Test Label on page 52.
2. If necessary, manually adjust the darkness or print
speed settings.
• Set the print darkness to the lowest setting that
provides good print quality. If you set the
darkness too high, the label image may print
unclearly, barcodes may not scan correctly, the
ribbon may burn through, or the printhead may
wear prematurely.
• Slower print speeds typically yield better print
quality.
Access the darkness and print speed settings from the
Home screen by touching
Menu > Print > Print
Quality
.
1. Clean the printhead thoroughly. See Clean the
Printhead and Platen Roller on page 98.
The ribbon is coated on the wrong
side and cannot be used in this
printer.
Replace the ribbon with one coated on the correct
side. For more information, see Determine the Type of
Ribbon to Use on page 47.
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