Epson WF-5790 Error 0x008E
The Epson WF-5790 is a high-performance printer that occasionally encounters error code 0x008E, resulting in the display showing “STK PID excess speed error. Failed to read the Stacker motor encoder.” This error is commonly caused by various factors, including contamination of the Stacker motor encoder scale, a damaged FFC (Flat Flexible Cable), sensor failure, failure of the Stacker motor, or even failure of the main board.
One of the potential causes for this error is contamination of the Stacker motor encoder scale. Dust particles or debris might accumulate on the encoder scale, obstructing the reading process and resulting in the error message. Cleaning the encoder scale with a soft, lint-free cloth can often resolve this issue.
Another possible cause is a damaged FFC, which connects various parts of the printer, including the Stacker motor. Inspect the FFC for any visible damage or loose connections. If damaged, replacement may be necessary.
Sensor failure is another potential cause for the error code. In such cases, contacting Epson customer support or a certified technician is recommended to diagnose and replace any faulty sensor.
If none of the above troubleshooting steps resolves the error, it could indicate a failure of either the Stacker motor or the main board. In such instances, it is advisable to seek professional assistance to assess the issue accurately and replace the faulty component if needed.
It is important to note that error code 0x008E can have various causes, and troubleshooting steps may vary depending on the specific issue. Consulting the printer’s user manual or reaching out to Epson support can provide more precise guidance for addressing this error.
| Printer Model | Epson WF-5790 |
| Error Code | 0x008E |
| Display on | PRINTER |
| Description and troubleshooting | STK PID excess speed error. Failed to read the Stacker motor encoder. Contamination of the Stacker motor encoder scale. Damaged FFC. Sensor failure. Failure of the Stacker motor. Failure of the main board. |
