Does Replacing the Mainboard Reset Firmware or Remove ReadyPrint Subscription on an Epson ET-16650U?

Question

I watched the tutorial about replacing the mainboard on an Epson ET-8550. If you replace the mainboard, does it reset the firmware, user data, and usage history? Also, if someone installs a standard ET-16650 mainboard into an ET-16650U (ReadyPrint version), would that remove the ReadyPrint subscription requirement that checks daily and during startup?

Answer

Regarding your question about mainboard replacement and data reset, most Epson printers store critical operational data directly on the mainboard (logic board). This typically includes:

• User configuration settings

• Network configuration (Wi-Fi credentials, IP settings)

• Printer usage counters (page counts, maintenance counters)

• Error history logs

• Calibration information

• Internal device identifiers tied to the board

Because of this design, replacing the mainboard usually resets most of these items. After installing a replacement board, the printer will often behave like a newly manufactured unit that has just been powered on for the first time. You may need to redo the initial setup, language selection, Wi-Fi configuration, and alignment procedures.

However, firmware itself is a different matter. The firmware version is embedded on the board you install. In other words:

• If the replacement board has older firmware, the printer will run that older firmware.

• If it has newer firmware, it will operate with that version.

So the firmware is not automatically reset to factory-it simply reflects whatever firmware is installed on the replacement board.

Now regarding the Epson ET-16650U ReadyPrint model, things become more complicated.

The ReadyPrint program is Epson's subscription printing service. Printers sold under this program are designed to operate within Epson's subscription ecosystem. The device periodically checks in with Epson's servers to confirm that the subscription is active. These checks can occur:

• During startup

• Periodically during operation

• When the printer connects to the internet

Because the subscription model is part of the product's design, the printer's identity and subscription status may be tied to multiple identifiers, such as:

• Device serial number

• Hardware identifiers stored in different components

• Server-side registration within Epson's ReadyPrint system

For that reason, installing a standard ET-16650 mainboard into an ET-16650U does not guarantee that the ReadyPrint checks will disappear. Even if the mainboard contains different stored data, the printer may still identify itself through other mechanisms when it connects to Epson's servers.

In addition, we should be clear about our position. At BCH Technologies, we do not perform or support modifications intended to bypass subscription systems or licensing controls. In fact, we previously declined a similar request from a customer and received a one-star review as a result. Nevertheless, we would rather accept negative feedback than assist with something that could be interpreted as bypassing a manufacturer's service model or misusing subscription hardware.

Because of this, the safest and most appropriate approach is to contact Epson directly regarding any ReadyPrint subscription device. Epson may be able to clarify transfer options, subscription status, or hardware replacement policies specific to the ReadyPrint program.

Addressing printer issues can be complicated due to the hands-on nature of many mechanical and electronic problems. Because of that, we're not able to provide remote troubleshooting or detailed repair support. However, we do offer an in-person diagnostic and repair service through our printer repair facility (https://bchtechnologies.com/printer-repair-service). Due to high demand, repairs are handled on a first-come, first-served basis, and it may take several weeks before we are able to receive your printer.

Our services are structured to repair either an entire printer or specific components, and we provide clear instructions on how the process works. That said, we understand that our repair rates may not always be the most economical option. For this reason, we strongly encourage self-guided research whenever possible.

A great place to start is our YouTube channel homepage (https://youtube.com/@bchtechnologies). If you're looking for a specific repair topic, use the search icon next to the "About" section on the right side of the channel menu. I receive dozens of questions daily asking whether we have videos on particular issues. After producing videos for more than nine years, it's difficult to remember every single one, so using YouTube's search function is the fastest way to find relevant content. YouTube may also recommend helpful videos from other creators that could assist with your repair.

Thanks again for reaching out and for supporting BCH Technologies. We truly appreciate your engagement and your interest in learning more about printer repair and maintenance.