Epson EW-M630T Error 0x003F
The Epson EW-M630T printer may occasionally encounter an error code 0x003F with the message “ASF (1st) PID reverse error” displayed on its screen. This error indicates a problem with the Automatic Sheet Feeder (ASF) mechanism, leading to various issues such as paper feed failures, paper jams, mechanism overload, broken gears, encoder errors, contaminated encoder scales, disconnected or broken Flexible Flat Cables (FFC), encoder sensor failures, or even main board failures.
One of the possibilities leading to this error is a paper jam that causes the PID (Proportional, Integral, Derivative) controller to reverse its direction. This can result in a malfunctioning paper feed mechanism or an overload situation. Additionally, broken gears within the printer can interfere with the smooth operation of the ASF.
Another potential cause for this error is an issue with the encoder system. The encoder scale, which helps the printer detect the position of various components, may become contaminated or dirty, leading to incorrect readings and subsequent errors. Furthermore, a faulty FFC connection or a broken FFC could disrupt the communication between the encoder sensor and the printer’s main board, triggering the error code 0x003F.
In some cases, the error may be a result of a malfunctioning encoder sensor or even a failure of the printer’s main board.
To troubleshoot this error, it is recommended to check for any paper jams and remove them carefully. Inspecting the ASF mechanism for any broken gears is also advised. Cleaning the encoder scale with a lint-free cloth and ensuring a secure connection of the FFC may help eliminate the error. However, if the issue persists, it might require professional assistance to replace the encoder sensor, repair the main board, or fix any other internal faults causing the error code 0x003F.
| Printer Model | Epson EW-M630T |
| Error Code | 0x003F |
| Display On | PRINTER |
| Description and troubleshooting | ASF (1st) PID reverse error. Paper feed fails. Paper jam. Mechanism overload. Broken gear. Encoder error. Contaminated encoder scale. Disconnected or broken FFC. Encoder sensor failure. Main board failure. |
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