Brother MFC-7290 - Page 6

iii
Confidential
6. OVERVIEW OF GEARS............................................................................................................... 3-7
7. HARNESS ROUTING................................................................................................................. 3-10
8. DISASSEMBLY FLOW CHART................................................................................................. 3-23
9. DISASSEMBLY PROCEDURE .................................................................................................. 3-24
9.1 Preparation ........................................................................................................................ 3-24
9.2 Paper tray .......................................................................................................................... 3-26
9.3 Cord hook .......................................................................................................................... 3-29
9.4 Back cover ......................................................................................................................... 3-30
9.5 Outer chute ASSY ............................................................................................................. 3-31
9.6 Fuser unit cover................................................................................................................. 3-32
9.7 Front cover ASSY.............................................................................................................. 3-33
9.8 Document tray ASSY......................................................................................................... 3-34
9.9 Side cover L....................................................................................................................... 3-35
9.10 Side cover R ...................................................................................................................... 3-35
9.11 Upper back cover............................................................................................................... 3-36
9.12 Handset holder (Upper cover L for no Handset model) / Upper cover R........................... 3-37
9.13 Hook switch PCB ASSY / Hook actuator........................................................................... 3-38
9.14 Unfold support flap............................................................................................................. 3-38
9.15 Control panel cover link ..................................................................................................... 3-38
9.16 Document chute ASSY...................................................................................................... 3-39
9.17 Document chute upper ASSY............................................................................................ 3-41
9.18 Separation pad ASSY........................................................................................................ 3-42
9.19 Control panel ASSY........................................................................................................... 3-43
9.20 Document separate roller .................................................................................................. 3-45
9.21 ADF motor ......................................................................................................................... 3-47
9.22 CIS unit.............................................................................................................................. 3-48
9.23 Control panel cover sensor................................................................................................ 3-49
9.24 Modem PCB ASSY............................................................................................................ 3-50
9.25 Inner chute cover............................................................................................................... 3-51
9.26 Inner chute ASSY .............................................................................................................. 3-52
9.27 Fuser unit........................................................................................................................... 3-53
9.28 Low voltage power supply PCB ASSY .............................................................................. 3-56
9.29 Main fan............................................................................................................................. 3-59
9.30 High voltage power supply PCB ASSY.............................................................................. 3-60
9.31 New toner sensor PCB ASSY............................................................................................ 3-61
9.32 Filter................................................................................................................................... 3-62
9.33 Laser unit........................................................................................................................... 3-63
9.34 Pick-up roller ASSY ........................................................................................................... 3-65
9.35 Rubber foot........................................................................................................................ 3-66
9.36 Main PCB ASSY................................................................................................................ 3-67