Cleaning the Print Heads on Your Epson EcoTank ET-2850, ET-2851 or ET-2852
Streaky prints, missing colours or faded output on your Epson EcoTank 2850 series printer almost always point to a clogged print head. Sublimation ink dries faster than standard dye ink, so if the printer has been sitting idle for more than a few days, dried ink in the nozzles is the most likely culprit. Fortunately, Epson provides built-in cleaning tools, and the 2850 series gives you two ways to access them: through the printer's own colour LCD screen, or through the utility software on your computer.
The cleaning process is identical on the ET-2850, ET-2851 and ET-2852. The differences between these three models are limited to connectivity. The ET-2850 is the standard model with USB and Wi-Fi. The ET-2851 is Wi-Fi only, with no USB connection. The ET-2852 adds an Ethernet port alongside Wi-Fi for wired network printing. None of these differences affect the ink system, print head or maintenance procedures.
Step 1: Run a Nozzle Check
Before running any cleaning cycle, print a nozzle check pattern first. This tells you exactly which colour channels are blocked and gives you a baseline to compare against after cleaning.
Via the Printer's LCD Screen
On the 2850 series, you can do this without a computer. Press the Home button on the printer, then go to Settings > Maintenance > Print Head Nozzle Check. Load a sheet of plain paper and confirm. The printer will print the test pattern directly.
Via Computer Utility Software
On Windows, open Settings or Control Panel, find your printer under Devices, right-click it and select Printing Preferences. Click the Maintenance tab, then select Nozzle Check.
On a Mac, go to System Settings (or System Preferences on older versions), then Printers & Scanners. Select your EcoTank printer, click Options & Supplies, open the Utility tab and launch the Epson Printer Utility. Select Nozzle Check from there.
The test pattern should show solid, unbroken lines in cyan, magenta, yellow and black. Any gaps, faint areas or missing segments indicate a blocked nozzle.
Step 2: Run a Head Cleaning Cycle
If the nozzle check shows issues, the next step is a standard Head Cleaning.
From the printer LCD: Go to Settings > Maintenance > Head Cleaning. The printer will run the cycle and prompt you to check the results with another nozzle check when it finishes.
From the computer: Use the same Maintenance tab (Windows) or Epson Printer Utility (Mac) and select Head Cleaning.
Head Cleaning pushes ink through the nozzles under pressure to clear partial blockages. It uses a moderate amount of ink, and the flushed ink goes into the printer's internal waste ink pad. This pad has a finite capacity, so you want to avoid running unnecessary cleaning cycles.
After the cycle completes, run another nozzle check. If the pattern is clean, you are done. If gaps remain, resist the urge to run another clean immediately.
Step 3: Wait and Recheck
This is the most underrated step in the whole process. After a Head Cleaning cycle, the ink that was pushed through the nozzles continues to work on any dried residue. Give it at least six hours, overnight if possible. Then run another nozzle check.
Many partial blockages clear themselves during this waiting period without needing any further intervention. Skipping straight to a second cleaning wastes ink and fills the waste pad unnecessarily.
Step 4: Power Cleaning
If the standard Head Cleaning and waiting have not resolved the issue, you can escalate to a Power Cleaning.
From the printer LCD: Go to Settings > Maintenance > Power Cleaning.
From the computer: Open the Maintenance tab or Epson Printer Utility and select Power Cleaning.
Power Cleaning forces a much larger volume of ink through the print head at higher pressure. It is significantly more effective at clearing stubborn or dried-in blockages, but it comes at a cost. It uses considerably more ink than a standard clean and drains the waste ink tank much faster. On EcoTank models, the waste ink pads are not designed for user replacement, so every Power Cleaning cycle brings the printer closer to a service warning.
Run a nozzle check after the Power Cleaning completes. If the pattern is still showing problems at this stage, the blockage may be too severe for the built-in utilities. Contact the supplier you bought the printer from for advice, as the print head may need a manual soak or professional attention.
Preventing Blocked Nozzles on Sublimation Printers
With sublimation ink, prevention matters more than with standard ink. Sublimation ink is formulated to convert from solid to gas under heat and pressure, and that chemistry also means it dries more aggressively in the nozzles when the printer is not in use.
The simplest prevention measure is to print something at least once a week. It does not need to be a real project. A quick colour test page or even a small test print on plain paper is enough to keep fresh ink flowing through all four channels and stop the nozzles from crusting over.
If you are going away and the printer will sit idle for more than a week, run a nozzle check before you leave and again when you get back. Catching a partial blockage early, when a single Head Cleaning can fix it, is far cheaper and faster than dealing with a fully dried head that needs Power Cleaning or worse.
Try to keep the printer somewhere with reasonable humidity. Very dry rooms, or spots next to radiators or in direct sunlight, accelerate ink drying in the nozzles.
Quick Reference: Cleaning Escalation Path
- Run a Nozzle Check to confirm the problem.
- Run Head Cleaning (moderate ink use).
- Wait at least 6 hours, then run another Nozzle Check.
- If still blocked, run Power Cleaning (heavy ink use).
- If still blocked after Power Cleaning, contact your supplier for further advice.
If you have an ET-2810, ET-2814 or ET-2862 instead, the process is very similar but those models lack the LCD screen, so everything is done through the computer utility. See our 2810 series print head cleaning guide for the full walkthrough.
A little regular maintenance goes a long way with these printers. A weekly print and an occasional nozzle check are enough to keep your EcoTank 2850 series producing sharp, consistent sublimation transfers for years.