Disassembly Flow - Brother MFC8420 Service Manual

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY
2.

DISASSEMBLY FLOW

1
AC CORD
2
DRUM UNIT
3
PAPER TRAY
4
DX FEED ASSY
(MFC-8820D/8820DN, DCP-8025D/8025DN only)
5
ACCESS COVER/BATTERY
6
DRIVER PCB ACCESS COVER
(3.5 (1) and (2) are contained. )
7
ADF UNIT
8
DOCUMENT SCANNER
9
PANEL UNIT
10
REAR COVER C
(MFC-8420, DCP-8020 only)
11
OUTER CHUTE
(MFC-8420, DCP-8020 only)
13
REAR COVER L/R
22
MAIN PCB
12
REAR COVER MP ASSY / OUTER CHUTE MP ASSY
(MFC-8820D/8820DN, DCP-8025D/8025DN only)
19
NCU (MFC-8420/8820D/8820DN)
20
FIXING UNIT
14
16
SIDE COVER L/R
15
17
JOINT COVER
18
REAR COVER SENSOR
21
LASER UNIT
23
BASE PLATE / LV INSULATION SHEET
24
DX-SENSOR PCB ASSY
(MFC-8820D/8820DN, DCP-8025D/8025DN only)
25
ENGINE PCB
26
HIGH-VOLTAGE PS PCB ASSY
27
LOW-VOLTAGE PS PCB ASSY
28
PAPER FEEDER
29
FRAME L / DRIVE UNIT
30
REVERSING RELEASE SOLENOID
(MFC-8820D/8820DN, DCP-8025D/8025DN only)
31
THERMISTOR ASSY
4-2
FRONT COVER ASSY
(MFC-8420, DCP-8020 only)
MP UNIT
(MFC-8820D/8820DN, DCP-8025D/8025DN only)
32
FAN MOTOR 60 UNIT LV /
FAN MOTOR 60 UNIT
33
FRAME R