- Remove the rear cover [A].
 - Remove the rear lower cover [A].
 - Remove the power supply box [A] (
x6, Among them, tapping screw x1)
 - Release the 5 clamps.
 - Remove the HVP-CB (PCB19) with the bracket [A] (Hook x2).
 Connect the combined Blue/White harness to the back frame [A].
- The harness will be connected to the relay board. See the details in step 8.
 
- Reinstall the HVP-CB unit and power supply box.
 - Secure the relay board to the main machine and connect the Blue/White harness to the socket on the board (
× 1,
× 3).
 Connect the harnesses on the relay board to the sockets on the PSU.
- Two types of harnesses are packed with the heater. Both the Blue/White one [A] and the Gray one [B] must be connected as shown below.
 
- Two types of harnesses are packed with the heater. Both the Blue/White one [A] and the Gray one [B] must be connected as shown below.
 - Remove the right rear cover [A] (
x4, among them, tapping screw x1)
 - Remove a screw.
 - Remove the scanner right cover [A].
Remove the hook at the upper part, and then slide the cover in the rear direction. - Route the harness around the outside of the PSU and pull the harness out of the electrical box through the hole [A] (
x 4).
 Route the harness in the direction of the scanner (
x 6).
- Fasten the clamp between the bindings of the harness at the location indicated by the red circle. 

 
- Fasten the clamp between the bindings of the harness at the location indicated by the red circle. 
 - Attach the connector to the frame.
Connect it to the heater harness in step 25.
 - Remove the scale [A]
 - Remove the sheet-through exposure glass [A]
 - Remove the rear scale [A]
 Remove the left scale and exposure glass [A]
- The exposure glass and the left scale are attached with double-sided tape.
 
- Move the scanner carriage to the right.
 - Attach the heater [B] to the bracket [A] provided with the accessories (
× 2).
 - Remove the release paper [A] on the back side of the bracket, and secure the heater [B] with the seal, aligning it with the boss on the frame.
 - Pull the harness [A] out of the frame hole.
Route the harness into the harness guide. - Attach the heater cover [A] (
× 1).
 - Connect the heater harness that was pulled out of the frame hole to the connector which was mounted in step 15. 
 - Reattach all the removed covers.