Question: How can I fix my Epson ET8550 printer that makes a screeching noise, stays on the left side, and shows error code 000023 even though there’s no paper jam after converting it to DTF and installing a CISS system?

Thank you for contacting us at BCH Technologies. We appreciate your engagement and support, especially with our YouTube channel (BCH Technologies). Your feedback is invaluable in helping us improve our technical expertise. Let's address the issue with your Epson ET8550 printer.

The error code 000023 indicates a "CR PID reverse error," which can arise from several issues:

• CR Encoder Failure: This may be due to a contaminated or detached scale, or a malfunctioning encoder sensor.
• External Forces: Stopping the CR Unit abruptly during operation or vibrations affecting the printer can cause this error.
• CR Timing Belt Issues: A skipped tooth on the CR Timing Belt might be the culprit.
• Paper Jam: Although there's no paper jam, related issues can still trigger this error.
• Main Board Failure: This could involve a failure in the motor driver on the main board.

To troubleshoot, follow these steps:

1. Inspect the Clear Belt: Check the clear belt behind the CR (printhead carriage). Ensure it is clean and correctly inserted into the encoder reader. A dirty or misaligned belt can disrupt the printer's ability to read the carriage's position, causing noise and movement issues.
2. Check the Drive Belt Tension: Ensure the drive belt is properly tensioned. A loose belt can cause the motor's spin speed to differ from the CR encoder reading, leading to errors.
3. Look for Obstructions: Ensure there are no external obstructions affecting the printhead's movement. A stuck printhead lock can prevent the printhead from moving, regardless of the motor's operation. For more detailed guidance, watch our troubleshooting video on a stuck printhead lock here.
4. Examine the Main Board: If these steps don’t resolve the issue, the main board might be faulty. Diagnosing this requires professional equipment.

Addressing printer issues can be complex due to the hands-on nature of these problems. While we cannot provide remote troubleshooting or support, we offer in-person evaluation and repair services at our local diagnostic facility, which you can find more about here. We operate on a first-come, first-served basis, and due to high demand, it may take a few weeks to service your printer. We recommend utilizing self-help resources such as our YouTube channel (BCH Technologies) for immediate assistance.

Thank you once again for reaching out. We appreciate your support and are here to help with any further issues you may encounter.