Epson WF-7720 Error 0x02AA
The Epson WF-7720 printer is a highly reliable and efficient printing device. However, like any other machine, it may encounter errors from time to time. One common error is the 0x02AA error code, which is displayed as “RASF PID excess speed error – Failed to read the RASF motor encoder.” This error indicates that there might be issues related to the RASF (Rear Auto Sheet Feeder) motor encoder.
There are several possible causes for this error. Firstly, it could be the result of contamination on the RASF encoder scale. If there is any dirt, dust, or other particles on the scale, it can interfere with the motor encoder reading.
Another potential cause could be the damage or skew of the RASF encoder FFC (Flexible Flat Cable). If the cable connecting the encoder to other components is damaged or misaligned, it can lead to error readings.
Additionally, the error can occur due to a failure of the RASF encoder sensor or the RASF motor driver. If any of these components malfunction, accurate readings from the motor encoder cannot be obtained.
Lastly, there is a possibility of a failure in the main board of the printer. This is a less common cause but it can result in error code 0x02AA.
To troubleshoot this error, it is recommended to clean the RASF encoder scale with a soft cloth and ensure that there is no contamination. Checking and properly aligning the RASF encoder FFC can also help in resolving the issue. If the problem persists, it is advisable to contact Epson customer support for further assistance or seek professional help to diagnose and resolve the error effectively.
| Printer Model | Epson WF-7720 |
| Error Code | 0x02AA |
| Display on | PRINTER |
| Description and troubleshooting | RASF PID excess speed error. Failed to read the RASF motor encoder. Contamination of the RASF encoder scale. Damage or skew of the RASF encoder FFC. Failure of the RASF encoder sensor Failure of the RASF motor driver. Failure of the main board. |
