Brother MFC-7225N - Page 6

iv Confidential
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 Paper Eject Tray .................................................................................................. 5-5
5.1.2 Drum/Toner ASSY ............................................................................................... 5-5
5.1.3 Paper Tray ........................................................................................................... 5-6
5.1.4 Back Cover .......................................................................................................... 5-7
5.1.5 Rear Chute Cover................................................................................................ 5-8
5.1.6 Document Base ASSY......................................................................................... 5-9
5.1.7 Side Cover L ...................................................................................................... 5-10
5.1.8 Handset Holder.................................................................................................. 5-11
5.1.9 Speaker ASSY................................................................................................... 5-12
5.1.10 Side Cover R/Link Stopper ................................................................................ 5-13
5.1.11 Panel Unit .......................................................................................................... 5-14
5.1.12 Hook PCB ASSY ............................................................................................... 5-20
5.1.13 Top Cover .......................................................................................................... 5-21
5.1.14 NCU PCB ASSY ................................................................................................ 5-32
5.1.15 Paper Stopper L/S ............................................................................................. 5-34
5.1.16 Front Cover........................................................................................................ 5-35
5.1.17 Pickup Roller Holder ASSY ............................................................................... 5-36
5.1.18 Fixing Unit .......................................................................................................... 5-40
5.1.19 High-Voltage PS PCB ASSY ............................................................................. 5-45
5.1.20 Main PCB........................................................................................................... 5-46
5.1.21 PS PCB Unit/Fan 40 .......................................................................................... 5-48
5.1.22 Laser Unit........................................................................................................... 5-52
5.1.23 Sub Chute ASSY ............................................................................................... 5-53
5.1.24 Link Lever .......................................................................................................... 5-54