Engine Pcb - Brother mfc8440 Service Manual
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Also See for mfc8440:
- User manual (426 pages) ,
- Software user's manual (183 pages) ,
- Quick setup manual (52 pages)
Table of Contents
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3.25
Engine PCB
(1) Disconnect the connectors.
NOTE:
• After disconnecting flat cable(s), check that each cable is not damaged at its end or
short-circuited.
• When connecting flat cable(s), do not insert them at an angle. After insertion, check
that the cables are not at an angle.
Fan motor 60 unit connector
Polygon motor connector
Fan motor 60 connector
LVPS connector
HVPS connector
Engine PCB ASSY
Cassette sensor PCB connector
(2) Remove the two bind B M4x12 Taptite screws, and then remove the engine PCB ASSY.
Engine PCB ASSY
LT connector
MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN
Fig. 4-121
Taptite, bind B M4x12
Fig. 4-122
4-69
SERVICE MANUAL
Toner sensor
(light reception) connector
Document cover sensor connector
Thermistor relay PCB connector
Main motor connector
Main PCB connector
Toner sensor
(light emission) connector
MP tray PCB connector
Reversing release solenoid connector
FR solenoid connector
PF solenoid connector
DX sensor connector
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Troubleshooting
