Fixing Epson Printer Error Code 031006 for WF-7720

Question:

I have an Epson Workforce 7720 that we converted to sublimation a couple of years ago. It worked perfectly until about two weeks ago, when we cleaned the printhead using a cleaning kit from Amazon. Ever since then, we've been getting an error code. Could you help us out?

Answer:

Thank you for reaching out to us at BCH Technologies [bchtechnologies.com]. We appreciate your support and engagement, especially with our YouTube channel [youtube.com/@bchtechnologies]. Your feedback is invaluable as it helps us to further enhance our technical expertise.

The issue you're encountering is related to error code 031006 on the EpsonWF-7720 printer. This error often indicates a problem with the mainboard, which is the printer's central control system. Here are some common causes and solutions for this error:

Causes of Error Code 031006:

1. Damaged or Faulty Mainboard: The mainboard might be malfunctioning due to wear or damage.
2. Loose, damaged, or Disconnected FFC Cables: Internal cables might have become loose or disconnected during cleaning or maintenance.
3. Power Surge or Electrical Problems: A sudden surge in power can affect the mainboard's functionality.
4. Faulty Printhead: When you clean the printhead, there could be some liquid gets in the printhead and thus damage the printhead, and/or FFC cable and the mainboard.

How to Troubleshoot and Repair Error Code 031006:

Step 1: Uncase the Printer

• Begin by turning off the printer and unplugging it from the power source. Follow your printer's user manual or relevant video tutorials to uncase the printer and access the mainboard.

Step 2: Remove the Mainboard

• Carefully disconnect all cables and connectors from the mainboard, noting their positions for reassembly. Unscrew and gently remove the mainboard from the printer. You can get an uncasing video here: 

Step 3: Inspect the Mainboard

• Examine the mainboard for visible signs of damage, such as burnt components, broken connections, or corrosion. This step is crucial to identify if the mainboard is the source of the problem. You will need to check the F1 fuse as in this page: https://bchtechnologies.com/f1-fuse-also-f2-f3-for... Scroll down and it gives you a picture where to find this fuse.

Step 4: Repair or Replace the Mainboard

• If the mainboard is damaged, you have two options: repair or replace it. If you have experience in electronics, you may attempt repairs yourself. Otherwise, consider consulting a professional technician or contacting Epson customer support for further assistance.

Step 5: Reassemble the Printer and Replace the Printhead

• 90%+ of chances that your printhead is no good anymore. Therefore, replace with a good printhead to prevent another burn-out for the mainboard.
• After addressing the mainboard issue, reassemble the printer by carefully reconnecting all cables and connectors. Use the user manual or video guides to ensure everything is correctly placed. Secure the mainboard and re-case the printer.

Step 6: Test the Printer

• Once reassembled, plug in the printer and power it on. Check if error code 031006 is resolved. If the error persists, consider repeating the process or seeking additional help.

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 via our local diagnostic facility [bchtechnologies.com/printer-repair-service]. Given the high demand, we operate on a first-come, first-served basis. So, it might take a few weeks before we can get your printer to drop it off or mail it to us. Our services are structured to repair either a whole printer or specific parts, with clear instructions on how to proceed if you opt for mail-in or local drop-off services. However, we acknowledge that our rates aren't the most economical. Thus, we highly recommend that you resort to self-help via online research. You can start by checking out YouTube or visiting our YouTube channel's homepage [youtube.com/@bchtechnologies]. Look for specific videos using the search icon next to "About" on the right-hand side of the menu bar. I receive dozens of queries every day asking about videos for specific topics. Having created videos over the past nine years, it's challenging to remember every single one. Therefore, using YouTube's search function would be most efficient. Plus, YouTube might suggest relevant videos from other channels that could assist you.

Thank you once again for reaching out to us. We hope this guide helps resolve your issue and gets your printer back to full functionality!