Brother MFC-3340CN User Manual

3-39 Confidential
3.3 CONTROL ELECTRONICS
3.3.1 Components
The following illustration shows the hardware components for this machine. The corresponding
wiring diagram appears in Appendix 5.
Main PCB
4-pin
ROM MODEM
SDRAM
MJ PCB
2-pin (MJ-line)
2-pin (MJ 1)
2-pin (MJ 2)
2-pin
Speaker
Control panel ASSY
8-pin
10-pin (FAX1940CN only)
Cover open sensor
Carriage PCB
CR encoder sensor
Head thermistor
17-pin (Head 1)
19-pin (Head 2)
Head/
carriage
unit
Paper width sensor
2-pin
Carriage motor
Paper feed motor
2-pin
12-pin
CIS unit
4-pin
Scanner motor
SCANNING
INK JET PRINTING & PAPER FEEDING
6-pin
Hook switch PCB
Media 1
(SM/XD/SD/MS
card)
Media 2
(CF card)
Line
External telephone
LAN
PC
*
1
Ink refill ASSY
9-pin
EEPROM
DC motor driver
Stepping motor driver
Ink cartridge PCB
Ink cartridge
sensors
Purge cam switch
Maintenance unit
*
1
7-pin
5-pin
Sensor PCB
PF encoder sensor
Registration sensor
7-pin
2-pin
2-pin
*
2
8MB (MFC3240C and FAX1840C/1835C)
16MB (MFC3340CN and FAX1940CN)
LAN I/F
USB
Power supply
PCB
AC line
SDAA
Main
ASIC
MEDIA
GA
2MB (MFC3240C and FAX1840C U.S.A./Canadian models)
8MB (Other models)
Large-volume
ink cartridge
sensor
Document rear sensor
Document front sensor
Control panel PCB
Rubber keypad
Hook switch sensor
*
3
*
3
*
3
Machine Components
*1 MFC3340CN and FAX1940CN
*2 FAX1940CN/1840C
*3 MFC3340CN only

Brother MFC-3340CN Specifications

General

Brand	Brother
Model	MFC-3340CN
Category	Fax Machine
Language	English