Electronics General Block Diagram - Brother MFC-9320CW Service Manual

2.

ELECTRONICS GENERAL BLOCK DIAGRAM

Toner/New sensor PCB
Drum motor origin sensor PCB
Internal temperature thermistor
Fuser/eject drive motor
Registration solenoid
Density sensor shutter solenoid
Low-voltage power supply PCB
LED power relay PCB
LED head control PCB
Panel PCB (Backlight)
LCD
Eject rear sensor PCB
ADF sensor
HP sensor
ADF motor
FB motor
Engine PCB
Eject front sensor PCB
Fuser thermistor 1
Fuser thermistor 2
Fuser unit
LED head (K)
LED head (Y)
LED head (M)
LED head (C)
ADF driver
FB driver
HVPS
control
PCB
(External
THM/HUM
sensor)
Main PCB
Registration
mark relay
PCB
Fig. 2-2
2-2
Develop drive motor
Paper feed motor
Belt drive motor
Develop release motor
Drum drive motor
Pick-up solenoid
LV fan
High-voltage
power
supply
Main fan
PCB
Toner LED PCB (emission)
Waste toner sensor
Top cover open switch
Develop release sensor PCB
Registration front/rear sensor PCB
Manual sensor PCB
Belt thermistor
Registration mark L PCB
Registration mark R PCB
Back cover open switch
Wireless LAN PCB (Wireless LAN model)
USB direct interface relay PCB
(USB direct interface model)
NCU PCB (FAX model)
Btattery (FAX model)
Speaker
CIS
Confidential