Epson WorkForce Series Printhead Replacement Issues: Troubleshooting Tips for Persistent Printing Problems

Question:
I’ve replaced the printhead on my Epson WorkForce printer (models WF-7710, WF-7720, WF-7110, WF-7610, WF-7620, WF-3620, WF-3640, using T1881/T252 cartridges), but the printer still doesn’t print correctly. What steps can I take to resolve this?

Answer:
1. Parking the Printhead Properly

Make sure the printhead is correctly parked on the capping station. Turn the printer on and allow the printhead to settle naturally—this ensures proper alignment and sealing. This process is safe to do with the power on. If the head doesn’t park correctly, ink flow and priming can fail.

2. Priming with DTF Ink Considerations

If you are using DTF ink, remember that it is thicker than standard dye or pigment ink. This means you may need to help the ink flow manually at the start.

• Attach a syringe and tube to the waste ink line.

• Gently draw 1.5 ml of air first—you should feel slight resistance. If you only pull air without resistance, it could mean the printhead isn’t sealed correctly or there’s a leak in the capping station.

• If you feel total resistance and cannot pull, the capping station may be clogged and will need cleaning before you proceed.

• After the initial draw, you might hear the damper membrane crinkle—this indicates the nozzles are open. Slowly draw up to the 2 ml mark, making sure the black rubber on the syringe passes this point, and hold for 10 seconds.

3. Checking for Capping Station and Seal Issues

Even with a new printhead, if the capping station is damaged, dirty, or has a poor seal, ink won’t be pulled through effectively. Look for:

• Cracks in the rubber seal

• Dried ink blocking the pad or pump

• Weak suction when manually testing

Cleaning or replacing the capping station can often restore normal operation.

4. Running Cleaning Cycles

Once the above steps are completed, use the printer’s built-in cleaning routine.

• Avoid strong (power) cleaning cycles within 12 hours of each other.

• Don’t run back-to-back cleanings—give the printer rest time to avoid overheating the pump and wasting ink.

5. Other Causes to Consider

If you still have printing issues after replacing the printhead:

• Ink Dampers – These can clog and restrict ink flow, especially with DTF ink.

• Air Leaks in Ink Lines – Check for tiny bubbles or loose fittings.

• Firmware-Related Issues – Rare, but sometimes a reset or firmware reinstall may be necessary.

• Electrical Connection – Ensure the ribbon cables to the printhead are clean, firmly connected, and free of corrosion.

Addressing printer issues can be a complicated affair due to the hands-on nature of the problems. We’re not able to provide remote troubleshooting or repairs, but we do offer in-person diagnostics and repair services through our local printer repair facility (https://bchtechnologies.com/printer-repair-service). Due to high demand, repairs are handled on a first-come, first-served basis, and wait times can be a few weeks. We repair entire printers or specific parts with clear instructions for the process. While our rates may not be the lowest, you can save money by attempting self-help repairs—start with YouTube searches, including our own YouTube channel (https://youtube.com/@bchtechnologies). Use the search icon next to the “About” tab to quickly find relevant videos. YouTube may also recommend other helpful channels.

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