1. Remove the upper right cover. (Upper Left Cover, Upper Right Cover)

  2. Pull out the toner supply unit. (Toner Supply Unit)
  3. Remove the right side stay [A].

    • In the case of MP C6503/C8003, remove the operation panel bracket [A].

  4. Remove the scanner drive motor [A] along with the bracket.
  5. Remove the bracket [A] from the motor.
  6. Remove the motor cushion [A] from the motor.

    • When attaching the motor, make sure that the timing belt does not come off. Slide the motor a few times. Screw the motor into place while the spring is pulled.