Understanding the Epson Power Supply for ET-2720/ET-2750: Pin Voltage and Output Specifications

Question:

Question regarding Epson Power Supply for ET-2720/ET-2750 Printer face has a 4-pin power supply. What are the voltages or uses of these pins, and what voltage(s) does this power supply output?

Answer:

Although we don’t have specific voltage levels for every single pin, I can still provide general usage for Epson printer power supply standard practices.

Pin Voltage and Functions:

This can go either way with how voltage for Epson printers is expressed on each model as the power supplies for such general output DC voltage. The standard voltage range is 24V to 42V. Most of these main power supplies have separate voltages for different sections of the printer that need supplying power, like the printhead and the electronics.

Output: The power supply commonly produces a higher DC primary voltage (around 24V to 42V), which supplies power to the printer’s motor and other essential parts.

Standby pin: A standby pin commonly lends a lower voltage ( 1.3V to 1.5V ) to the printer to signal that the power supply is ready to be turned on or off.

How to Find Out Specific Voltage:

I recommend using a multimeter to check the power supply's output and find exactly what volts each of the four pins has. You can quickly determine the pin by carefully measuring the voltage across it.

You can also consult the printer service manual for the pinout and voltage specs. The service manual usually contains the most accurate and detailed information for your printer model.

Sadly, we don't have a pinout diagram for this power supply yet. However, I hope this general information helps you understand how it works.

If you're interested, you can find more details about the product Epson Power Supply for ET-2720/ET-2750 (No Return).

Printer issues can be a maddening affair due to the hands-on nature of the problems — every other tidbit of advice you come across seems to be alien in some way. So, we cannot offer remote troubleshooting and suggestions or support the repair of the printer. Our local diagnostic facility BCH Technologies Printer Repair Service, provides an in person's diagnostic repair service. Because of high demand, we operate on a first-come-first-served basis, so please allow a few weeks for the pickup and drop off of your printer. If you face any issues, you can always bring your printer to us, as our service is designed to fix a complete printer or separate components, with detailed guidance on what to do next. However, we know that our rates are among the highest, so we recommend you do your research online and try to take the self-help route. Before getting started, be sure to browse YouTube or head over to our YouTube channel homepage. Use the search icon to look for specific videos next to “About” on the right-hand side of the menu bar. Every day, I get dozens of questions about whether I’ve made videos for particular topics, and though I’ve made videos for the past nine years, it’s hard to remember every single one. So really, you would want to use YouTube’s search function for finding those. Plus, YouTube may recommend videos from other channels that can help you.

Again, thanks for reaching out, and let us know if you need any more help!