1. Open the right door.

    • If you find paper dust in the registration section when you open the duplex unit, remove the dust. Otherwise, the dust can cause lines on the image.

  2. Pull down the guide plate [A].
  3. Remove the sensor cover [B]. ( × 2)
  4. Remove the sensor bracket [A]. ( × 2, × 2)
  5. Remove the registration sensor [A]. (Hook × 2)
  6. Remove the paper feed sensor [B]. (Hook × 2)