Epson Printer Ink Button Solid Red After Replacing Motherboard - How to Fix

Question:
After replacing the motherboard in my Epson printer, the ink button stays on as a solid red light. What does this mean, and how can I troubleshoot it?

Answer:

A solid red ink light on an Epson printer, especially after replacing critical components like the motherboard, usually points to a detected error within the ink delivery system or associated sensors. Unlike a blinking red light (which often signals a low or empty cartridge), a solid red ink light typically indicates that the printer has locked itself into an error state.

Here are steps to help you diagnose and address this issue:

1. Use the Epson Adjustment Program

   • Download or open the Epson Adjustment Program. This is the same diagnostic tool used by Epson technicians.

   • Select your printer by choosing the USB port that lists its name.

   • Click Particular Adjustment Mode and scroll down to Printer Information Check.

   • Once you click Check, you'll see a list of error codes. The most recent one will appear at the top.

2. Understand the Error Codes

   • Each Epson error is assigned a specific code that points to a faulty sensor, logic board miscommunication, or ink system issue.

   • For interpretation, search "BCH Epson Error" on Google, which will lead you to our dedicated page explaining Epson's Triple Secret Error Codes. For example, one common fault after motherboard replacement involves the APG sensor, which can trigger a persistent red light if not properly calibrated.

3. Why the Ink Light Appears After Motherboard Replacement

   • When you swap the mainboard, the new board may not recognize the existing cartridge or ink level data correctly. This mismatch causes the system to trigger a hard error, which the red light represents.

   • Some errors may also stem from loose ribbon cables, improperly seated cartridges, or initialization issues after hardware replacement.

4. Finding the Right Resources

   • The Epson Adjustment Program isn't always bundled with printers-it's a tool intended for service technicians, but some DTF printer sellers share it. If you don't already have it, you may need to search online to obtain a copy.

   • For a quick visual walkthrough of this process, watch our YouTube video guide (https://youtube.com/shorts/FPZzpyYuZLE), which demonstrates how to run the checks and locate error information.

Addressing printer issues can be a complicated affair due to the hands-on nature of the problems. So, we're not able to provide remote troubleshooting, suggestions, or support for printer repairs. We offer an in-person evaluation and repair service (https://bchtechnologies.com/printer-repair-service). Given the high demand, we operate on a first-come, first-served basis, so it may take a few weeks before we can accept your printer. Our services can cover either the entire printer or specific parts, with clear steps on how to proceed. That said, our rates may not be the lowest, so we strongly recommend starting with self-help resources through online research. A good starting point is our YouTube channel homepage (https://youtube.com/@bchtechnologies). Use the search icon next to "About" on the right-hand side of the menu bar to find videos on your issue. With nine years of content, it's impossible to recall every single video on demand, but searching will help you locate what you need, and YouTube's algorithm may also suggest related content from other channels.

Thank you again for reaching out with your question and for your support of our work. We truly appreciate your patience and the opportunity to help guide you through these printer challenges.