Block Diagram - Brother HL-5440D Service Manual

2.4

Block Diagram

(Wireless LAN model only)
Wireless LAN
Fuser unit
Center thermistor
Eject sensor
PCB
Side thermistor
Halogen-heater
LVPS PCB
Power switch
Panel PCB
(LED)
Panel PCB
(LCD)
HVPS PCB
Back cover
sensor
Relay front
PCB
DIMM
New toner
sensor
USB
function
Laser unit
Main motor
Toner LED
PCB
Toner sensor
LT
T2 relay PCB
connector
Main PCB
Fig. 2-3
2-8
Backlight
PCB
MP-PE sensor PCB
T1 paper feed sensor PCB
Registration front/rear sensor PCB
Duplex
solenoid
Toner sensor PCB
Toner sensor
Front cover sensor
Develop clutch
MP solenoid
T1 clutch
Registration clutch
Main fan
T2 paper feed sensor PCB
T2 clutch
LCD
Confidential