How to Resolve Epson WF-3640 Printer Error 0x97 After Cleaning and Testing Components Tags:

Question:

How do I address the Error 0x97 on my Epson WF-3640 printer after cleaning the printhead and checking the components?

Answer:

Error 0x97 on your Epson WF-3640 printer typically signifies a malfunction within the printhead or related components. Given your thorough approach in cleaning the printhead, testing the FFC cables, and inspecting the encoder strip, wheel, and sensors, you've covered many potential trouble areas. Your attention to detail, especially in assessing the paper detection switch and the ink waste system, is commendable. However, the issue persists, suggesting a more intricate problem possibly related to the printer's hardware that controls the printhead's movement.

The abnormal back-and-forth movement of the printhead you've observed suggests a communication or hardware issue, possibly related to the printer's control circuitry. This can be a complex issue to resolve, especially without specific diagnostic tools or software that manufacturers use for such tasks. However, given your skills and tools like a multimeter and an oscilloscope, you might delve deeper into the electronic components governing the printhead's movement.

1. Revisit the Mainboard and Connectors: Since you have excellent soldering skills, double-check the solder joints on the mainboard, especially those related to the printhead and its motor. A cold solder joint or a fracture could cause intermittent issues like what you're experiencing.
2. Sensor and Motor Check: Focus on the sensors, particularly those involved in printhead positioning and paper feed mechanisms. Since the printhead moves erratically before displaying the error, a sensor might be sending incorrect signals due to misalignment or failure.
3. Printhead Electrical Test: Although you've cleaned the printhead, an electrical fault within it could still cause the error. Use your multimeter to check the continuity and resistance of the printhead coils. An oscilloscope can help observe any erratic signals being sent to the printhead, which could hint at a control circuitry issue.

If these steps do not resolve the issue, considering a new printhead might be a necessary, albeit more costly, solution. Before taking that step, you may find additional diagnostic tips and repair advice on BCH Technologies' YouTube channel at https://YouTube.com/@bchtechnologies. Their videos provide valuable insights into printer repairs and maintenance.

Furthermore, for specific repair needs or to purchase parts, BCH Technologies offers a comprehensive printer repair service and a selection of printer parts at https://bchtechnologies.com/printer-repair-service/ and their main website www.bchtechnologies.com. They specialize in a range of services, including mainboard and component repairs, which could be particularly useful if you decide to further investigate the printer's electronic issues. Remember, if you opt for component-specific repairs, it's crucial to ensure all other printer parts are functioning correctly to avoid damage to newly repaired components.

In summary, the problem you're facing with the Epson WF-3640, marked by Error 0x97, is challenging but not insurmountable with the right approach and resources. Your technical skills are a significant asset in this troubleshooting process. Should you need further assistance or parts, BCH Technologies' resources and services could be invaluable.