Brother HL-5440D - Block Diagram

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