- Do the same procedure for the 1st optional paper feed unit from step 1 to step 6.
 - Do the following steps:
- Connect the harness [A] and heater connector for the 2nd tray.
 - Remove the cap on the 1st tray harness.
 - Connect the 2nd tray harness [B].
 - Attach three clamps [E] and route the harness through them. (
× 5)
 
- A: To the 2nd tray heater
 - B: To the 1st tray heater harness
 - C: Not used
 - D: Cap 
 
 - Reattach all the covers removed.