Electronics General Block Diagram - Brother HL-3040CN Service Manual

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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
LCD
Panel PCB (Backlight)
Eject rear sensor 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)
Engine PCB
High-voltage
HVPS
control
PCB
(External
THM/HUM
sensor)
Main PCB
Registration
mark relay
PCB
USB direct interface relay PCB (HL-3070CW only)
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
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 (HL-3070CW only)
Confidential

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