Epson R1390 vs L1800: Are They the Same Printer or Just Similar? Key Differences Explained

Question:
I watched your video about the L1800 printhead unclogging machine and had a question-what's the difference between the Epson R1390 and the L1800? They look exactly the same. Are they actually different?

Answer:

Now, to your question-this is a great observation, and you're absolutely right to notice how similar the Epson R1390 and L1800 look.

If we're specifically talking about the printhead, then yes-they are not just similar-they are actually the same. Both printers use the same Epson Micro Piezo printhead model. This means from a hardware and repair perspective, especially when dealing with printhead cleaning, clogging, or replacement, the procedures and parts are interchangeable between the two models.

However, beyond the printhead, there are a few important distinctions:

1. Ink System (Major Difference)

• R1390: Uses traditional cartridge-based ink system.

• L1800: Comes with an integrated EcoTank (continuous ink supply system) from the factory.

This is the biggest functional difference. The L1800 is designed for high-volume printing with refillable tanks, while the R1390 typically requires cartridges or a third-party CISS modification.

2. Target Market and Usage

• R1390: Originally marketed as a photo printer for consumers and professionals.

• L1800: Designed for high-volume, low-cost printing, widely used in DTF (Direct-to-Film) and DTG (Direct-to-Garment) conversions.

3. Firmware and Chip Behavior

• The firmware in the L1800 is optimized for continuous ink flow and may behave differently when detecting ink levels or errors.

• The R1390, being cartridge-based, relies more on chip recognition and reset mechanisms.

4. Mainboard and Internal Configuration

While the mechanical structure is nearly identical, there may be slight differences in the mainboard configuration and firmware programming, especially related to ink delivery and monitoring systems.

5. Common Errors and Maintenance

Since both printers share the same printhead, they can experience similar issues such as:

• Clogged nozzles

• Air in ink lines (especially in modified R1390 units)

• Printhead overheating or misfiring

However, the L1800 may be more prone to ink flow issues if the tank system is not properly maintained, while the R1390 may encounter cartridge recognition errors.

In summary, from a printhead and mechanical standpoint, they are essentially identical. But from a system design and user experience perspective, the L1800 is a more modern, bulk-ink solution compared to the cartridge-based R1390.

Addressing printer issues can be a complicated affair due to the hands-on nature of the problems. As such, we're not able to provide remote troubleshooting or detailed repair guidance. However, we do offer an in-person evaluation and repair service through our local diagnostic facility (https://bchtechnologies.com/printer-repair-service). Due to high demand, we operate on a first-come, first-served basis, and it may take a few weeks before we can accept new drop-offs. Our services cover both full printer repairs and individual component fixes, with clear instructions provided along the way. That said, we understand that our services may not be the most budget-friendly option, so we strongly encourage self-guided research. A great place to start is YouTube, including our channel homepage (https://youtube.com/@bchtechnologies). Use the search icon next to the "About" section to find videos on specific topics. With hundreds of videos created over the past nine years, this is the fastest way to locate relevant content-and YouTube may even recommend helpful videos from other creators as well.

Thanks again for your question and for supporting BCH Technologies. We truly appreciate it!