1. Remove the waste toner bottle. (Waste Toner)
  2. Remove the rear lower cover. (Rear Lower Cover)
  3. Remove the left cover. (Left Cover)
  4. Remove the ozone exhaust fan (FAN3). (Ozone Exhaust Fan (FAN3))
  5. Remove the power supply box. (Power Supply Box)
  6. Remove the FFC [A] and CN163 [B] of paper transport IOB (PCB1).
  7. Remove the connectors of waste toner bottle full sensor (S34) [A] and waste toner bottle set sensor (S35) [B].
  8. Remove the waste toner bottle sensor unit [A].
  9. Remove the waste toner bottle full sensor (S34) [A].
  10. Remove the waste toner bottle set sensor (S35) [A].