Brother MFC-9420CN - Page 6

iv Confidential
CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR
4.1 TRANSFERRING RECEIVED FAX DATA ................................................................4-1
CHAPTER 5 DISASSEMBLY/REASSEMBLY AND LUBRICATION
5.1 DISASSEMBLY/REASSEMBLY ...............................................................................5-1
 Safety Precautions........................................................................................................5-1
 Tightening Torque......................................................................................................... 5-2
 Preparation ...................................................................................................................5-3
 How to Access the Object Component ......................................................................... 5-3
 Disassembly Flowchart ................................................................................................. 5-4
5.1.1 AC Cord................................................................................................................5-5
5.1.2 OPC Belt Cartridge............................................................................................... 5-6
5.1.3 Paper Tray............................................................................................................ 5-6
5.1.4 Fusing Unit ...........................................................................................................5-7
5.1.5 Side Cover LR ....................................................................................................5-11
5.1.6 Top Side L ..........................................................................................................5-12
5.1.7 ADF Unit.............................................................................................................5-13
5.1.8 Scanner Unit....................................................................................................... 5-28
5.1.9 Pull Arm/Scanner Slider L, R..............................................................................5-29
5.1.10 IS Lock Lever ASSY...........................................................................................5-30
5.1.11 Tray (TP) ............................................................................................................5-30
5.1.12 Panel ..................................................................................................................5-31
5.1.13 Battery ASSY......................................................................................................5-35
5.1.14 Main PCB ...........................................................................................................5-36
5.1.15 NCU PCB ASSY.................................................................................................5-37
5.1.16 Top Side R .........................................................................................................5-38
5.1.17 Cleaning Roller Cover PU / Cleaning Roller PU.................................................5-38
5.1.18 Top Cover...........................................................................................................5-39
5.1.19 Center Cover ......................................................................................................5-40
5.1.20 Right Side Cover PU ..........................................................................................5-40
5.1.21 Side Cover LF ....................................................................................................5-41
5.1.22 Interlock Switch PU (Front) ................................................................................5-41