Brother MFC-9420CN Service Manual - Page 5
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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
iv
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