Brother DCP-8250DN

iv
Confidential
9.10 Panel cover / Printed panel cover...................................................................................... 3-53
9.11 Document scanner unit...................................................................................................... 3-60
9.11.1 First side CIS unit ................................................................................................ 3-62
9.12 Joint cover ......................................................................................................................... 3-67
9.13 Wireless LAN PCB ASSY.................................................................................................. 3-68
9.14 USB host PCB ASSY......................................................................................................... 3-68
9.15 Speaker unit ...................................................................................................................... 3-69
9.16 NCU PCB ASSY................................................................................................................ 3-70
9.17 Main PCB ASSY................................................................................................................ 3-71
9.18 Fuser unit........................................................................................................................... 3-73
9.19 Laser unit........................................................................................................................... 3-76
9.20 Low-voltage power supply PCB ASSY .............................................................................. 3-77
9.21 Toner LED PCB ASSY ...................................................................................................... 3-80
9.22 Main fan............................................................................................................................. 3-82
9.23 Air duct / Filter.................................................................................................................... 3-84
9.24 Relay front PCB ASSY ...................................................................................................... 3-85
9.25 Registration clutch / T1 clutch............................................................................................ 3-86
9.26 Main frame L ASSY ........................................................................................................... 3-87
9.27 Main motor ASSY .............................................................................................................. 3-89
9.28 Develop joint gear 37 / Develop joint ................................................................................. 3-91
9.29 LT drive gear 29................................................................................................................. 3-92
9.30 Toner sensor PCB ASSY................................................................................................... 3-93
9.31 MP solenoid....................................................................................................................... 3-94
9.32 Develop clutch 51R / Develop one way clutch 53.............................................................. 3-95
9.33 New toner actuator ............................................................................................................ 3-96
9.34 Internal temperature thermistor ......................................................................................... 3-97
9.35 Fuser drive gear 39............................................................................................................ 3-98
9.36 Duplex solenoid ............................................................................................................... 3-100
9.37 Back cover sensor ........................................................................................................... 3-101
9.38 LT connector (T1) ............................................................................................................ 3-102
9.39 T1 roller holder ASSY...................................................................................................... 3-103
9.40 High-voltage power supply PCB ASSY ........................................................................... 3-104
9.41 Eject sensor PCB ASSY.................................................................................................. 3-107
9.42 MP roller holder ASSY / MP separation pad ASSY / MP separation pad spring ............. 3-108
9.43 T1 paper feed sensor PCB ASSY /
T1 paper feed actuator / T1 paper feed actuator spring .................................................. 3-109
9.44 MP paper empty sensor PCB ASSY / MP paper empty actuator 1 /
MP paper empty actuator 2 ............................................................................................. 3-111
9.45 Registration front/rear sensor PCB ASSY / Registration front actuator /
Registration rear actuator / Registration actuator spring ................................................. 3-114
10. DISASSEMBLY PROCEDURE (LT UNIT)............................................................................... 3-117
10.1 Paper tray 2 ..................................................................................................................... 3-117
10.2 T2 roller holder ASSY...................................................................................................... 3-119