If your Epson EcoTank is printing but skipping one or more colors, the culprit is almost always a clogged nozzle, an air bubble in the ink line, or a stale ink profile. This guide walks through the seven fixes that resolve the issue for over 90% of readers — in order of what to try first.
1. Print a nozzle check pattern
Before touching any settings, print a nozzle check so you can see exactly which color is failing. On the printer itself: Setup → Maintenance → Nozzle Check. A healthy pattern shows solid, continuous lines for all four colors.

If a whole block is missing or has gaps, note which color(s) so you know what to target with the cleaning cycle in the next step.
2. Run a head cleaning cycle
From the printer menu, run Head Cleaning — not Power Cleaning yet. This uses a small amount of ink to flush the affected nozzles. After it finishes, print another nozzle check.
Repeat up to 3 times. If there is no improvement after 3 cleanings, stop and move to the next step — repeated cleanings without progress waste ink and can create air bubbles.
Check ink levels visually
Look at the tanks with a flashlight. The software readout is an estimate — the physical level is the truth. If a tank is below the lower line, top it up and reset the level from the printer menu.
3. Power cleaning (last resort for clogs)

Power Cleaning uses significantly more ink and should only be run after 3 normal cleanings have failed. On most EcoTank models it lives under Setup → Maintenance → Power Cleaning. Do not run it more than once per day.
4. Reset the print driver defaults
A stale color profile in the driver can silently disable a channel. On macOS: System Settings → Printers & Scanners → Reset printing system, then re-add the printer. On Windows: uninstall via Programs & Features and reinstall the latest driver from epson.com.