# Rear Unit Before Parts Replacement

#Procedure

1. Start service support mode. (Starting Service Support Mode)
2. Select [05 Adjustment for Replacement Parts].
   
3. Select [501 Main Unit].
   
4. Select [50102 Paper Feed/Eject Parts].
   
5. Select [5010212 Rear Unit].
   
6. Select [Before Parts Replacement].
   
7. Press [Start].
   
8. Turn the power OFF.
   When the power of the product is turned on, the product starts in service support mode, and the “After replacement” screen of the Rear Unit is displayed.