1. Remove the paper feed unit. (Paper Feed Unit)
  2. Remove the paper transport sensor unit [A] (×1, ×1).
  3. Remove the paper transport sensor [A].
  4. Remove the paper feed sensor unit [A] (×1).
  5. Remove the paper feed sensor [A].
  6. Press the claw shown by the blue circle, and remove the paper end sensor [A] (×1).
  7. Remove the upper limit sensor [A] (×1).