How to Fix Epson L1800 Double Red Light Error

Question:

I own an Epson L1800 with a new print head and cables. It worked perfectly until it stopped, and now, double red lights blink. I’ve been troubleshooting with support, sending videos back and forth at all hours, but they can’t solve the problem. I don’t want to keep blindly buying parts—how do I diagnose the problem?

Answer:

Step 1: Application Epson Adjustment Program

Epson’s Adjustment Program is a diagnostic utility that allows you to pinpoint the cause of the error more precisely. Here’s how to get started:

Open the Adjustment Program and select the USB port where your Epson L1800 is plugged.

Select “Specific Modification”, then scroll down and click “Printer Information Check.”

Click “Check” to output a list of the most recent errors. The latest error will be shown at the top as Error #1

Step 2: Decode the Error Code

Now that you’ve retrieved the error code, it's time to check its meaning. Triple Secret Error Codes Specific to Epson Printers → Google “BCH Epson Error.” Our website will have a complete guide that describes this code.

Flashing double red lights on L1800[edit] Some common errors associated with flashing double red lights on the L1800 are:

APG Sensor Error: Indicates a problem with the auto paper gap sensor; perhaps dirty or defective.

Carriage Jam Error: This error can occur if the printhead cables are not seated correctly or an object interferes with their smooth movement.

Waste Ink Pad Counter Error: If your printer's waste ink pad counter is complete, it may need reset using the Adjustment Program.

If you haven't heard of the software before, it is typically only issued to Epson technicians and occasionally shared by DTF printer sellers. If not, you might have to look online for a copy.

Step 3: Follow along with a Step-by-Step Video

For a video guide on the Adjustment Program, watch our YouTube short video tutorial:

How to Verify Errors in Epson L1800 (https://youtube.com/shorts/FPZzpyYuZLE)

Further Troubleshooting Instructions:

If the error code indicates a hardware problem, here are some possible solutions:

Inspect the printhead cables – Ensure they're adequately connected and not damaged.

Check the carriage movement – Open the printer lid and move the printhead by hand. If it’s not moving, clear path impediments.

Reset the waste ink counter – If you have an error related to the waste ink pad, reset it using the Adjustment Program.

APG sensor cleaning: Clean the sensor of dust or ink buildup using compressed air or a lint-free cloth.

Need Further Assistance?

Printer troubleshooting is not easy, and the ability to diagnose a problem remotely has limits. At BCH Technologies, we provide local diagnostic services for in-person printer evaluations and repairs. You can learn more here:

If you are several weeks out, I apologize, but due to high demand we serve on a first-come, first-served basis, and my charges are quite inexpensive. BCH Printer Repair Service (https://bchtechnologies.com/printer-repair-service)

For those looking to try and fix the issue yourself, we suggest you search YouTube for troubleshooting videos. Alternatively, go to our BCH Technologies YouTube channel (https://youtube.com/@bchtechnologies) and use the search bar to look up relevant topics (following the "About" tab). YouTube will also recommend helpful videos from other creators.

I appreciate you taking the time to contact us again, and thank you for your patience and for supporting our content. We hope this guide has assisted you in resolving your Epson L1800 double red light error. Happy printing!