ALD PID over speed error

Error code
  • 100033 ALD PID over speed error
Occurrence condition
  • The ADF motor is rotating faster than expected.
Assumed cause
  • The motor was driven at a high speed relative to the motor speed control.
Related parts

  • Gear trains

  • Drive motor

  • Circuit board (Motor drive board)

  • Encoder scale

  • Encoder sensor

Troubleshooting

Step

Confirmation and action

YES

NO
1

Check harness connection

  • Is the harness connecting the motor and encoder properly connected?
    Reconnect the harness.
    Does the error still occur?
 Go to step 2 End of work
2

Check the gear trains

  • Check the gear trains of the ADF Unit for disengagement, damage, or abnormalities.
    Reassemble the gear train components.
    Does the error still occur?
 Go to step 3 End of work
3

Check the encoder

  • Check the encoder scale and encoder sensor for dirt and abnormalities.
    Replace the encoder sensor or scale.
    Does the error still occur?
 Go to step 4 End of work
4

Replace the other parts or components

  • Replace the following parts in sequence and check whether the symptom recurs after each replacement.
    (1) ADF Board, (2) Motor, (3) ADF Unit
    Does the error still occur?
 Contact Epson local service representatives. End of work