Block Diagram - Brother DCP-7057 Service Manual

2.4

Block Diagram

Document Scanner Unit
ADF Unit
ADF cover open sensor
Document detection sensor
Document scanning
position detection
sensor
Registration
front/rear sensor
Registration front sensor
Registration rear sensor
Fuser FAN
Fuser Unit
Center thermistor
Side thermistor
Back cover / DX
CIS unit
Document
scanner drive
ADF drive
motor
Main PCB ASSY
Low voltage power
supply PCB
Heater Switch
High voltage power
supply PCB
Front cover
sensor
Paper eject
sensor PCB
Paper eject
Wireless LAN
PCB ASSY
(Wireless LAN model only)
New toner sensor
PCB ASSY
T1 clutch ASSY
REG clutch ASSY
Main motor
Laser Unit
LD control PCB
ASSY
BD sensor
Polygon motor
NCU PCB ASSY
(Only for the models
with FAX)
Speaker
(Only for the models
with FAX)
Fig. 2-6
2-9
Paper edge
sensor PCB ASSY
Paper edge sensor
(only for paper edge
actuator model)
Panel PCB ASSY
FAX LED
SCAN LED
COPY LED
Back Light
Key (Matrix)
LCD
Confidential