Epson PX-M781F Error 0x21
The Epson PX-M781F is equipped with advanced scanning capabilities, allowing users to effortlessly convert physical documents into digital formats. However, just like any other electronic device, it may encounter errors that need troubleshooting. One such error is the 0x21 error code, which displays a message related to the scanner. This error code indicates issues with the ALD PID excess speed, ALD motor failure, motor driver failure, or cable/FFC disconnection.
The ALD PID excess speed error refers to the acceleration and speed of the Automatic Document Feeder (ADF) scanning function, which might be operating at an abnormal rate. This could be due to a misconfiguration or software glitch, causing the scanner to exceed its normal operational limits.
If the ALD motor fails, it means that the motor responsible for pulling in documents for scanning has encountered an issue. This could be caused by motor wear and tear, electrical fluctuations, or other mechanical problems.
Motor driver failure occurs when the driver responsible for controlling the motor malfunctions or becomes defective. This can lead to the scanner not being able to perform its scanning functions effectively.
Lastly, a cable or FFC (Flexible Flat Cable) disconnection can occur if the physical connections between the scanner’s components are loose or unstable. This disconnection can disrupt the signal transmission between different parts of the scanner, leading to errors like the 0x21 code.
To troubleshoot these issues, it is advised to check the physical connections, ensuring that all cables and FFCs are securely connected. Restarting the device and updating the scanner’s drivers and firmware may also resolve the error. If the problem persists, contacting Epson customer support or seeking professional assistance is recommended to diagnose and fix the specific problem.
| Printer Model | Epson PX-M781F |
| Error Code | 0x21 |
| Display On | SCANNER |
| Description and troubleshooting | Scanner/ADF ALD PID excess speed error. ALD motor failure. Motor driver failure. Cable or FFC disconnection. |
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