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Troubleshooting JPS print quality

Use this troubleshooting guide for JPS print quality issues including faded text, smudging, streaks, and misaligned labels. Read on to learn how to clean, calibrate, and adjust settings for performance optimization.

Check the platen roller and clips

The rubberized platen roller feeds your labels and provides proper tension/pressure to transfer heat from the printhead to your media (labels). Attached to the platen roller are two plastic clips (shown below).

Check the clips for any damage. If you notice broken or missing clips, you will need to replace them.

How to clean the printhead and platen roller

Cleaning your Zebra ZD410/ZD411 printer regularly is essential for performance and longevity.

Materials needed:

  • Lint-free cloths or swabs

  • Rubbing alcohol (isopropyl alcohol)

  • Compressed air (optional)

Safety Precautions:

  • Ensure the printer is turned off and unplugged before cleaning.

  • Avoid touching the printhead with your fingers.

  • Use rubbing alcohol in a well-ventilated area.

  1. Unplug the printer and turn it off before you start the cleaning process.
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  2. Open the printer by lifting the top cover to access the printhead and internal components.

  3. Remove media (labels) inside the printer to prevent them from getting damaged or dirty during the cleaning process.

  4. Clean the printhead (this is found on the lid of the device) by moistening a lint-free cloth/swab with rubbing alcohol, then gently wipe the printhead with the cloth/swab. Avoid using excessive force to prevent damage.
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  5. Next, clean the platen roller (the rubber roller that feeds labels through the printer). Dampen a lint-free cloth with rubbing alcohol, remove the platen roller from the device, and gently clean the platen roller. Rotate the roller manually to clean the entire surface.

  6. Once this is done, you will need to clean the media sensor (the yellow sensor eye found on the main body of the printer).
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  7. Use a swab moistened with rubbing alcohol to clean the media sensor. This sensor detects the presence of labels and can become dirty over time.

  8. Before placing the printer components back in place, allow enough time for the cleaned parts to air dry.

  9. Next, reassemble the printer by placing the labels, platen roller, etc. back in the printer, then close and secure the printer cover.

  10. Finally, plug the printer back into a nearby power source and turn it back on.

If you have thoroughly cleaned the printhead and other components but are still having print quality issues, the printhead may be worn out due to repeated heating, cooling, and reheating.

If you run a test print and still see streaks, smudges, or other issues, please contact our support team.

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