The rear cover must be removed to pull out the ground wire of the scanner drive motor.

 

  1. Remove the DF unit. (Document Feeder)
  2. Remove the rear cover. (Rear Cover - MF Model)
  3. Remove the controller box cover [A].

  4. Grip both ends of the rear top cover [A], and lift it off its hinges.

  5. Open the rear top cover [A], and then remove by lifting it up.

  6. Remove the scanner covers [A].

  7. Release the ground wire of the scanner drive motor.

  8. Remove the scanner top cover. (Scanner Top Cover (Left Scale, Top Scale, Exposure Glass, Sheet-through Glass))
  9. Press the pulley, and then remove the timing belt [A] by bending it.

  10. Remove the three screws of the motor bracket [A].

  11. Lift up the guide rod, and then remove the motor bracket [A].
    Pull out the ground wire [B] from the hole in the scanner base.
    As there is grease on the guide rod, be careful that grease does not transfer onto other parts.

  12. Remove the scanner drive motor [A].

When attaching the scanner drive motor, be careful not to position the ground plate (1) over the guide rod (2).

If you do, the ground plate will interfere with the CIS and prevent it moving to the right end, causing the timing belt’s teeth to disengage and the belt to slip.

  • [A]:  Correct
  • [B]:  Incorrect