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CHAPTER IV. DISASSEMBLY/REASSEMBLY AND
LUBRICATION
CONTENTS
1. DISASSEMBLY/REASSEMBLY ............................................................................... IV-1
n Safety Precautions .................................................................................................. IV-1
n Preparation.............................................................................................................. IV-2
n How to Access the Object Component ................................................................... IV-2
n Disassembly Order Flow......................................................................................... IV-3
1.1 Lower Rear Cover .............................................................................................. IV-4
1.2 Access Plates R and F ....................................................................................... IV-4
1.3 Paper Cassette................................................................................................... IV-5
1.4 Document Tray ASSY ........................................................................................ IV-6
1.5 Upper Rear Cover .............................................................................................. IV-8
1.6 ADF Unit and Document Tray Open Sensor ...................................................... IV-9
[ Disassembling the ADF Unit ]........................................................................... IV-11
1.7 Scanner Unit and Control Panel ASSY............................................................... IV-16
[ Disassembling the Scanner Unit ] .................................................................... IV-19
[ Disassembling the Control Panel ASSY ]......................................................... IV-24
1.8 Relay PCB .......................................................................................................... IV-25
1.9 Speaker .............................................................................................................. IV-26
1.10 Scanner Mount ................................................................................................... IV-27
1.11 Paper Sub Tray and Tray Holder........................................................................ IV-30
1.12 VC Cover, VC Bracket, and VC Connector PCB (for models supporting
video capture)..................................................................................................... IV-31
1.13 Front Cover
Front Sub Cover (for models not supporting video capture) .............................. IV-32
1.14 Outer Chute and Paper Pinch Rollers ................................................................ IV-33
1.15 Main Cover ......................................................................................................... IV-34
1.16 Switch Cover (for models not equipped with a power switch) ............................ IV-35
1.17 Laser Unit ........................................................................................................... IV-36
1.18 Heat-fixing Unit and FU Lamp ............................................................................ IV-37
1.19 Fan ..................................................................................................................... IV-51
1.20 Drive Gear ASSY and Main Motor ASSY ........................................................... IV-53
1.21 NCU Shield and NCU PCB* ............................................................................... IV-55
1.22 Bottom Plate, Main PCB, and Bottom Insulation Film ........................................ IV-57
1.23 Low-voltage Power Supply PCB and Power Inlet............................................... IV-61
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