Epson ET-8550 Won't Power On After DTF Conversion - What to Do

Question:
I have a brand-new Epson ET-8550 printer that I was trying to convert into a DTF printer. Initially, it powered on fine, but after completing the conversion, it no longer turns on. I was careful not to touch the left side of the printer since I know that area is sensitive. I also tried resetting it, but that didn't help. What could be the issue, and if I send it in, would you be able to take a look at it?

Answer:

When a brand-new Epson ET-8550 won't power on after a DTF conversion, there are a few critical areas to check:

1. Power Supply Issues

The most straightforward possibility is that the printer's internal power supply or power board was affected during the conversion. Even if you were careful, disassembly and modification can shift connectors or cause an electrical short.

• Double-check that the AC power cord is firmly connected and try another outlet.

• If available, test with a different compatible power cord to rule out cord failure.

2. Main Board or Logic Board Damage

On the left side of Epson printers is the main logic board, which controls startup and power functions. Even if you avoided it, small amounts of static discharge, accidental flexing of the chassis, or spilled fluid can damage it. If this board fails, the printer will not power on at all.

3. Ribbon Cable or Internal Connection Problems

During conversion, it's common to disconnect components like the carriage unit, ink lines, or sensor cables. If a ribbon cable leading to the control panel or main board became loose or pinched, the printer may behave as if it's completely dead. Reseating internal cables can sometimes restore power.

4. Short Circuit from Ink or Moisture

With DTF conversions, there's always a risk of liquid (such as ink, cleaning solution, or adhesive) reaching sensitive areas. Even a tiny drop on the board or connectors can trigger a short circuit, preventing the printer from turning on. Inspecting for residue or burn marks inside can reveal this.

5. Factory Warranty Considerations

Since this is a brand-new machine, modifying it for DTF voids Epson's factory warranty. That means sending it to Epson won't be a viable option. Independent repair or evaluation would be required to identify and replace damaged parts, which could be costly depending on whether it's the power board or main board.

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 (https://bchtechnologies.com/printer-repair-service). Given the high demand, we operate on a first-come, first-served basis, and it might take a few weeks before we can get your printer evaluated once it's dropped off. Our services are structured to repair either a whole printer or specific parts, with clear instructions on how to proceed. 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 (https://youtube.com/@bchtechnologies). Use the search icon next to "About" on the right-hand side of the menu bar to look for specific videos. I receive dozens of queries daily about videos for specific topics, and since I've created hundreds of videos over the past nine years, it's hard to remember each one. Using YouTube's search function will be the most efficient, and it may also suggest helpful videos from other channels.

Thank you again for reaching out and trusting us with your printer concerns. We truly value your support and engagement with BCH Technologies.