Epson WF-7610 Keeps Losing Head Alignment After F1 Fuse Replacement - Causes and Fixes

Question:
I replaced the F1 fuse and printhead on my Epson WF-7610 after it blew. The printer works again, but now every time I use it, I have to perform head alignment because it doesn't retain the settings. Why does this keep happening?

Answer:

What's Causing the Head Alignment to Reset?

What you're experiencing is actually a fairly common side effect after an F1 fuse failure and printhead replacement on Epson models like the WF-7610. While replacing the fuse and printhead restores basic functionality, several deeper issues can remain:

1. EEPROM Data Corruption or Reset

The WF-7610 stores calibration data (like head alignment) in non-volatile memory (EEPROM). When the F1 fuse blows, it often happens due to a short circuit in the printhead. That electrical event can:

• Disrupt or partially erase stored configuration data

• Cause the printer to revert to default settings

• Prevent new alignment data from saving properly

So even though you perform alignment, the printer may not retain it after a restart or power cycle.

2. Mainboard (Logic Board) Damage

The F1 fuse doesn't blow randomly-it's typically protecting the mainboard from a surge caused by a failing printhead. When that happens:

• The mainboard may suffer partial electrical damage

• Memory-writing circuits may become unstable

• The printer may fail to store settings consistently

This is one of the most common reasons alignment settings don't "stick."

3. Replacement Printhead Variance

Even if the replacement printhead is compatible, slight manufacturing differences can:

• Require more frequent recalibration

• Cause alignment values to be less stable

• Trigger the printer to "forget" or override previous settings

This is especially true if the printhead is refurbished or sourced from a different batch.

4. Power Instability or Incomplete Shutdown Cycles

If the printer loses power unexpectedly or isn't shutting down properly:

• EEPROM writes may not complete

• Settings like alignment may not be saved

• The printer may revert to requiring alignment again

Make sure you're always powering down the printer properly using the power button.

What You Can Try

Here are a few practical steps to help diagnose or improve the situation:

• Check if alignment holds after a soft restart vs. full power unplug

  • If it resets only after unplugging, EEPROM issues are likely

• Perform alignment and wait a few minutes before turning off

  • This allows time for memory write cycles

• Avoid frequent power interruptions

• Inspect the mainboard for signs of damage

  • Burn marks, overheating areas, or inconsistent behavior

• Consider replacing the mainboard

  • If the issue persists, this is often the permanent fix

Are There Any Error Codes?

In many F1 fuse cases, the printer may not show a clear error code after repair, but originally you might have seen:

• Error Code 0x9A / 0xEA / 0xF1-related failures (varies by firmware)
  These are typically tied to printhead electrical faults or overcurrent protection events.

Even if no error code appears now, the underlying electrical event can still cause the symptoms you're seeing.

Addressing printer issues can be a complicated affair due to the hands-on nature of the problems. Unfortunately, we're not able to provide remote troubleshooting, suggestions, or support for printer repairs. However, we do offer an in-person evaluation and repair service through our local diagnostic facility (https://bchtechnologies.com/printer-repair-service [https://bchtechnologies.com/printer-repair-service]). Due to high demand, we operate on a first-come, first-served basis, and it may take a few weeks before we're able to accept your printer.

Our services are designed to repair either complete printers or specific components, with clear guidance throughout the process. That said, we understand that our rates may not be the most budget-friendly option. For that reason, we strongly recommend exploring self-help resources first. A great place to start is YouTube, including our channel homepage (https://youtube.com/@bchtechnologies [https://youtube.com/@bchtechnologies]). Use the search icon next to the "About" section on the right-hand side to find videos on your specific issue. With hundreds of videos created over the years, this is the fastest way to locate relevant content-and YouTube may also suggest helpful videos from other creators.

Thanks again for your question and for supporting our work. We truly appreciate you being part of the community, and we hope this helps you get closer to a stable, long-term solution!