How to Fix Printhead Issues on Epson WF-3640 and Perform a Dye Ink Conversion

Question:

It is an Epson WF-3640 that had been in storage since 2019. Printhead still blocked, even after multiple cleans. I was wondering if someone could assist me in sourcing a good replacement printhead and also guide me how I go about converting this printer for a dye ink conversion?

Answer:

Thank you for reaching out to us! At BCH Technologies, we sincerely appreciate your engagement and support, especially with our YouTube channel (https://youtube.com/@bchtechnologies). Your feedback and inquiries play a pivotal role in shaping our expertise, and we're grateful for the opportunity to assist you with your Epson WF-3640.

Issue 1: Printhead Replacement for Epson WF-3640

It sounds like you’ve been through a thorough process in attempting to revive your WF-3640’s printhead. Unfortunately, despite your diligent cleaning efforts, the printhead may have sustained permanent damage, especially if there are still flow issues even after using a syringe and ultrasonic cleaning.

If you're looking for a replacement, here are your options:

eBay Listings – You can find new and refurbished WF-3640 printheads on eBay. Expect prices to range from $180 to $250. If you come across listings offering printheads for significantly less, be cautious, as these could be low-quality knockoffs or scams.

Purchase directly from BCH—We do stock quality printheads, but they are typically reserved for refurbishing WF-7720 printers. If you want to purchase one from us, we can offer it for $200. However, this would be a final sale with no returns or refunds.

I recommend using eBay for availability and price comparisons. Just be mindful of the seller's reputation and product quality.

Issue 2: Dye Ink Conversion for Epson WF-3640

If you’re considering converting your WF-3640 to dye ink, it’s an exciting project but does require several components. Here’s a list of everything you’d need to perform the conversion successfully:

Refillable Ink Cartridges – These cartridges are essential for switching from regular ink to dye ink, as they allow you to refill the ink tanks yourself without purchasing new cartridges.

Tank Fill Plugs – These small components are necessary to ensure the refillable cartridges maintain a proper seal after refilling. They help prevent leaks and ensure smooth ink flow.

Bulk Ink Refill Bottles (Black, Cyan, Magenta, Yellow)—Your printer needs high-quality dye ink, which can be purchased in bulk bottles. To avoid clogging issues, make sure to source inks that are compatible with the WF-3640’s printhead.

Installation Tools include syringes for refilling cartridges, gloves, and any other tools necessary to ensure the conversion is done cleanly and without error.

Unfortunately, we don't have all the parts listed on our website, but you can find refillable ink tanks and compatible dye ink kits through specialized online retailers. If you're interested, we can also draft a comprehensive plan for you to follow, including part numbers and recommendations for trusted suppliers.

Is It Worth It?

From a cost perspective, undertaking a full dye ink conversion for the WF-3640 can be expensive. If you decide to go that route, you’re likely looking at around $250 for the conversion components alone, plus another $100 to $150 for chipless firmware.

After investing so much into this older printer model, you’re building an EcoTank-like system, which you could easily purchase for around $150, with a new printhead and pre-installed ink system.

While the conversion is certainly doable, I’d recommend considering whether the total cost and effort are worth it for the WF-3640 versus simply purchasing a used or refurbished EcoTank printer. Many EcoTank models are designed for efficient ink use right out of the box and might save you time and hassle in the long run.

In-Person Printer Repair Services

Addressing printer issues can be hands-on, so we cannot offer remote troubleshooting or repair services. However, BCH Technologies does offer an in-person evaluation and repair service at our local diagnostic facility (https://bchtechnologies.com/printer-repair-service). Given the high demand, our services operate on a first-come, first-served basis, and it may take a few weeks to get your printer checked if you decide to mail it in or drop it off.

Our services cover complete printer repairs or specific part replacements. If you choose to mail in your printer, we will be sure to provide detailed instructions to guide you through the process. While our rates may not be budget-friendly, we highly recommend researching self-help options before committing to repairs.

For more DIY solutions, visit our YouTube channel (https://youtube.com/@bchtechnologies), where we have a wealth of tutorials and troubleshooting videos. The channel's search bar can help you locate specific videos quickly, including content on printhead repairs, ink conversions, and more.

Thank you again for reaching out. If you have any further questions or need more detailed assistance, feel free to let us know. We're happy to support your journey in maintaining and upgrading your printer!