iii
Confidential
3.13.4 Low voltage power supply PCB ASSY failure .................................................... 2-103
3.13.5 NCU ASSY failure .............................................................................................. 2-103
3.14 Other Problems ............................................................................................................... 2-104
3.14.1 The machine is not turned ON, or the LCD indication does not appear ............. 2-104
3.14.2 Fuser fan does not rotate ................................................................................... 2-104
3.14.3 The room temperature is high or low .................................................................. 2-104
3.14.4 Problem associated with Secure Function Lock ................................................ 2-104
CHAPTER 3 DISASSEMBLY/REASSEMBLY
1. SAFETY PRECAUTIONS ........................................................................................................ 3-1
2. PACKING ................................................................................................................................. 3-2
3. SCREW CATALOGUE ............................................................................................................. 3-3
4. SCREW TORQUE LIST ........................................................................................................... 3-4
5. LUBRICATION ......................................................................................................................... 3-6
6. OVERVIEW OF GEARS ........................................................................................................... 3-7
7. HARNESS ROUTING ............................................................................................................. 3-10
8. DISASSEMBLY FLOW CHART ............................................................................................. 3-26
9. DISASSEMBLY PROCEDURE .............................................................................................. 3-27
9.1 Paper Tray ........................................................................................................................ 3-29
9.2 Cord Hook ......................................................................................................................... 3-32
9.3 Back Cover ....................................................................................................................... 3-33
9.4 Outer Chute ASSY ............................................................................................................ 3-34
9.5 Fuser Cover ...................................................................................................................... 3-35
9.6 Inner Chute ASSY, Eject Pinch Roller R ASSY and Eject Pinch Roller L ASSY .............. 3-36
9.7 Front Cover ASSY, Support Flap 1 ................................................................................... 3-38
9.8 Side cover L / Handset holder ASSY ................................................................................ 3-40
9.9 Side Cover R .................................................................................................................... 3-43
9.10 ADF Unit (For models with ADF) ...................................................................................... 3-44
9.10.1 ADF Unit ............................................................................................................... 3-44
9.10.2 Hinge ASSY L / Hinge Arm R / Hinge R / Hinge R support .................................. 3-46
9.10.3 Document Stopper ............................................................................................... 3-47
9.10.4 Document Sub Tray ............................................................................................. 3-48
9.10.5 ADF Cover ASSY ................................................................................................. 3-49
9.10.6 Gear Cover ........................................................................................................... 3-50
9.10.7 Separation Roller ASSY ....................................................................................... 3-51
9.10.8 Separation Rubber Holder ASSY ......................................................................... 3-52
9.10.9 Upper Document Chute ASSY SX ....................................................................... 3-53
9.10.10Document Feed Roller ASSY ............................................................................... 3-54
9.10.11Lower Document Chute ASSY ............................................................................. 3-55
9.10.12Ejection Roller ASSY ............................................................................................ 3-56
9.10.13ADF motor ............................................................................................................ 3-57
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