Contents3.2.17.7 Removing the Face-Down Cover................................................................................................................................................................3-363.2.17.8 Removing the Top Cover ............................................................................................................................................................................3-363.2.17.9 Removing the Right Frame .........................................................................................................................................................................3-373.2.17.10 Removing the Left Frame .........................................................................................................................................................................3-373.2.17.11 Removing the Cassette Feeder ..................................................................................................................................................................3-373.2.17.12 Removing the Shield Plate ........................................................................................................................................................................3-373.2.17.13 Removing the Fan Duct ............................................................................................................................................................................3-373.2.17.14 Removing the Lower Case Assembly .......................................................................................................................................................3-383.2.17.15 Removing the Sub High-Voltage Power Supply PCB Unit......................................................................................................................3-383.2.17.16 Removing the High-Voltage Power Supply PCB .....................................................................................................................................3-383.2.18 Sub High-Voltage Power Supply PCB .................................................................................................................................... 3-383.2.18.1 Removing the Fixing Assembly..................................................................................................................................................................3-383.2.18.2 Removing the Rear Cover ...........................................................................................................................................................................3-393.2.18.3 Removing the Reader Assembly.................................................................................................................................................................3-393.2.18.4 Removing the Right Cover..........................................................................................................................................................................3-403.2.18.5 Removing the Left Cover............................................................................................................................................................................3-403.2.18.6 Removing the Power Supply Assembly......................................................................................................................................................3-403.2.18.7 Removing the Face-Down Cover................................................................................................................................................................3-413.2.18.8 Removing the Top Cover ............................................................................................................................................................................3-413.2.18.9 Removing the Right Frame .........................................................................................................................................................................3-423.2.18.10 Removing the Left Frame .........................................................................................................................................................................3-423.2.18.11 Removing the Cassette Feeder ..................................................................................................................................................................3-423.2.18.12 Removing the Shield Plate ........................................................................................................................................................................3-423.2.18.13 Removing the Fan Duct ............................................................................................................................................................................3-423.2.18.14 Removing the Lower Case Assembly .......................................................................................................................................................3-433.2.18.15 Removing the Sub High-voltage Power Supply Board.............................................................................................................................3-433.2.19 Internal Temperature Detection Thermistor ............................................................................................................................ 3-433.2.19.1 Removing the Rear Cover ...........................................................................................................................................................................3-433.2.19.2 Removing the Reader Assembly.................................................................................................................................................................3-443.2.19.3 Removing the Right Cover..........................................................................................................................................................................3-443.2.19.4 Removing the Left Cover............................................................................................................................................................................3-453.2.19.5 Removing the Power Supply Assembly......................................................................................................................................................3-453.2.19.6 Removing the Face-Down Cover................................................................................................................................................................3-453.2.19.7 Removing the Top Cover ............................................................................................................................................................................3-453.2.19.8 Removing the Right Frame .........................................................................................................................................................................3-463.2.19.9 Removing the Shield Plate ..........................................................................................................................................................................3-463.2.19.10 Removing the Machine Inside Temperature Thermistor ..........................................................................................................................3-473.2.20 Cooling Fan.............................................................................................................................................................................. 3-473.2.20.1 Removing the Rear Cover ...........................................................................................................................................................................3-473.2.20.2 Removing the Reader Assembly.................................................................................................................................................................3-473.2.20.3 Removing the Right Cover..........................................................................................................................................................................3-483.2.20.4 Removing the Left Cover............................................................................................................................................................................3-483.2.20.5 Removing the Power Supply Assembly......................................................................................................................................................3-493.2.20.6 Removing the Face-Down Cover................................................................................................................................................................3-493.2.20.7 Removing the Top Cover ............................................................................................................................................................................3-493.2.20.8 Removing the Left Frame ...........................................................................................................................................................................3-503.2.20.9 Removing the Fan Duct ..............................................................................................................................................................................3-503.2.20.10 Removing the Cooling Fan .......................................................................................................................................................................3-503.3 Document Feed/Exposure System ...............................................................................................................................3-513.3.1 Scanner Unit............................................................................................................................................................................... 3-513.3.1.1 Removing the Rear Cover .............................................................................................................................................................................3-513.3.1.2 Removing the Scanner Unit ..........................................................................................................................................................................3-513.3.2 ADF Unit ................................................................................................................................................................................... 3-513.3.2.1 Removing the Rear Cover .............................................................................................................................................................................3-513.3.2.2 Removing the Scanner Unit ..........................................................................................................................................................................3-523.3.2.3 Removing the SCNT Board Unit ..................................................................................................................................................................3-523.3.2.4 Removing the ADF Unit ...............................................................................................................................................................................3-523.3.2.5 Points to Note When Mounting the ADF Unit..............................................................................................................................................3-533.3.3 Scanner Cover Unit.................................................................................................................................................................... 3-533.3.3.1 Removing the Rear Cover .............................................................................................................................................................................3-533.3.3.2 Removing the Scanner Unit ..........................................................................................................................................................................3-53