Epson L805 Light Cyan Nozzle Problem: Half Nozzles Not Spraying Ink

Question:
On an Epson L805 printer, the Light Cyan (LC) nozzle only sprays ink on half of the area, while the other half does not spray at all. Can this issue be fixed by removing the top plate on the printhead and cleaning it? Is there any video link that shows how to repair this?

Answer:

From your description, the problem you are experiencing with the Epson L805-where the Light Cyan (LC) nozzle only sprays on half of its area-is unfortunately a common and serious one. Here are the key points to understand:

1. Partial Nozzle Loss
   When only half of a nozzle bank sprays, it often indicates that a portion of the ink chamber inside the printhead has become permanently blocked or damaged. Unlike a simple clog, which may clear with cleaning cycles, a partial spray pattern usually points to internal failure.

2. Limitations of Cleaning
   Removing the top plate of the printhead and cleaning it externally does not reach the internal ink chambers or piezoelectric elements that control the nozzles. This means that even with manual cleaning, the missing nozzles usually will not recover. Cleaning methods can help with soft clogs caused by dried ink, but they cannot restore damaged or permanently blocked nozzle groups.

3. Why Nozzles Don't Come Back
   Once part of the printhead is damaged-whether due to air entering the chamber, long-term clogging, or micro-cracks in the piezo elements-those nozzles cannot be restored. Epson printheads are precision components, and unlike some older models, they are not designed for disassembly or repair at the nozzle level.

4. Replacement as the Only Reliable Fix
   If the Light Cyan channel is critical to your printing quality (especially for DTF printing, where color accuracy matters), the only long-term solution is replacing the printhead. Continued cleaning attempts may waste ink without improving the output.

At this time, we do not have a video that demonstrates a successful fix for this specific issue, since once the nozzles are permanently lost, they typically cannot be brought back.

Addressing printer issues can be challenging since many problems require physical inspection and specialized tools. Because of this, we are unable to provide remote troubleshooting or direct repair support. However, we do provide in-person printer repair services at our local diagnostic facility (https://bchtechnologies.com/printer-repair-service). Please note that repairs are scheduled on a first-come, first-served basis and may involve some wait time. Our services can cover full printer repairs or targeted part replacements, with clear instructions on next steps. That said, we recognize that professional repair costs may not always be the most budget-friendly option. For those seeking alternatives, we strongly recommend using online resources. A good starting point is our YouTube channel (https://youtube.com/@bchtechnologies), where you can use the search icon under the "About" tab to locate videos on specific topics. YouTube may also suggest other creators' videos that could help.

Thank you again for reaching out and for your continued support of BCH Technologies. We value your trust and engagement, and we wish you the best in resolving your Epson L805 issue.