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Fixing Missing Lines in Your DTF Nozzle Test

If your DTF printer shows missing or broken lines during a nozzle check, follow this step-by-step process to restore full nozzle performance.

A missing-line pattern in a nozzle test indicates partial blockage or interrupted ink flow within the printhead. This issue can appear even with regular maintenance if the printer has been idle, exposed to dry conditions, or has air in the ink system.

All Printomize America DTF printers—Hyper DTF, Peregrine, Nebula, Maverick AIO, and Eyas2—use precision Epson-based technology:

  • Hyper DTF, Peregrine, Nebula, Maverick AIO: Epson i3200-A1 DTF printheads

  • Eyas2: Epson XP600 printhead

Because these heads rely on microscopic nozzles to jet pigment-based inks, consistent cleaning and proper wet-capping are essential to avoid drying or air intrusion.

Common Causes of Missing Lines

Cause Description Typical Result
Dried ink on printhead surface Ink residue or mist dries over nozzle openings Consistent gaps in the same channels
Air in dampers or ink lines Small bubbles interrupt ink pressure Random or flickering missing lines
Weak cap seal Head not seated correctly on cap top Ineffective cleaning and suction
Separated or expired ink Pigments clump and restrict flow Color inconsistency or poor opacity
Dirty wiper or capping station Residue re-contaminates head after cleaning Repeated clogging after each cleaning cycle

Step-by-Step Recovery Procedure

1. Run a Standard Cleaning

Run one standard cleaning from your printer control software (A-Tools, WellPrint or PrintEXP).
Print a nozzle check immediately afterward.
If missing lines remain in the same color, proceed to the next step.

2. Inspect Cap and Wiper

  • Clean the capping station using lint-free swabs and approved cleaning solution.

  • Ensure the cap top sits evenly beneath the printhead.

  • Wipe the wiper blade thoroughly; replace if ink residue has hardened.

3. Perform a Power Cleaning

Execute one power cleaning if your model supports it.
Allow several minutes between cleanings to prevent overheating the printhead.
Re-test with a nozzle check.

4. Check Ink Lines for Air

  • Examine each ink line for air gaps.

  • If present, gently prime the affected dampers or trigger the ink charge/pump function.

  • Confirm that the white ink loop is fully opaque and circulating correctly.

5. Cap-Soak Cleaning

  1. Move the carriage to the maintenance position.

  2. Apply a small amount of cleaning solution to the cap top.

  3. Park the head directly over the cap and let it soak 20–30 minutes.

  4. Run a standard cleaning and re-test.

6. Replace Dampers if the Problem Persists

Persistent missing lines in one color channel may indicate a blocked damper.
Replace the affected damper with a Printomize-approved part.
After installation, run an initial ink charge or multiple cleanings to restore pressure.

Model-Specific Notes

 

Environmental Recommendations

  • Keep temperature between 65–75 °F (18–24 °C).

  • Maintain humidity between 45–60 %.

  • Avoid positioning the printer near vents, heaters, or direct sunlight.

  • Always wet-cap immediately after use.

When to Escalate

If missing lines continue after multiple cleanings and damper inspection:

  • The printhead may have permanent clogging or internal air intrusion.

  • Contact Printomize America Technical Support for guided diagnostics or inspection scheduling.

  • Include your printer model, serial number, and latest nozzle-test photo with your support request.