Block Diagram - Brother MFC-J3520 Service Manual

2.4

Block Diagram

ADF unit
Second side document
scanning position sensor
Document width sensor
Document detection sensor
First side document scanning
position sensor
ADF cover sensor
Document scanner sensor
PF encoder sensor
Switchback sensor
Registration sensor PCB
Registration sensor
Purge cam sensor
Paper feed
motor
Carriage
motor
AC line
Document scanner unit
Second side
First side CIS unit
CIS unit
Document
scanner
ADF
motor motor
AFE/ AFE/
LED Driver
LED Driver
ASIC
Main PCB
USB
Host
MS MSdu o
USB
SD
Wireless LAN PCB
Power supply PCB
Ink cartridge cover sensor
EEPROM
DDR3 RMII
LAN
(MAC)
Back up
ROM
ROM
Control panel
LCD PCB ASSY
Panel PCB
Touch
LCD
panel
Power key
Fig. 2-5
2-8
PC
USB
Ethernet
LAN
(PHY)
MJ PCB
SPI
SDAA
Modem
AMP
Speaker
Head/carriage unit
Print head
Head thermistor
Carriage PCB
CR encoder sensor
Paper width sensor
Ink refill ASSY
Ink cartridge IC chip
Ink remaining sensor PCB
Ink remaining sensor
Ink cartridge PCB
Ink cartridge detection sensor
NFC
Casing internal thermistor
PCB
Tel line
Ext Tel line
Confidential