Brother MFC-J6920DW - Block Diagram

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