Xerox 3450B Service Manual - Page 171

Print Engine Interconnect Diagram

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Phaser 3450 Laser Printer Service Manual 10-2 Registration Sensor Paper Out Sensor Output Full Sensor Thermistor 1 VCC 2 SIGNAL CN-2 3 GND Paper Size Board Fuser Exit Sensor Print Cartridge Fuser Heat Lamp AC Input Registration Clutch Tray 2 Solenoid Tray 1 Solenoid Tray 1 Empty Sensor Tray 2 Out Switch 1 2 3 1 2 1 2 CN-3 3 4 1 2 CN-1 3 4 3.3 V BIN_FULL GND THERM 1 THERM 2 GND P_REGI P_EMPTY 3.3 V P_SIZE 1 P_SIZE 2 P_SIZE 3 GND 1 3.3 V 2 SIGNAL 3 GND 1 MHV 2 NC 3 NC 4 OPC_GND 5 NC 6 SUPPLY 7 NC 8 DEV 1 2 1 2 3 24 V 1 NC 2 GND 3 24 V 1 GND 2 24 V 1 GND 2 5 V 1 SIGNAL 2 GND 3 NC 1 GND 2 CST_OUT 3 CN-8 CN-4 CN-9 CN-7 Print Cartridge Interconnect Board 12 GND 1 11 CART_CLK 2 10 CART_DATA 3 9 3.3 V 4 8 P_EMPTY 5 7 P_REGI 6 6 THERM 1 7 5 THERM 2 8 4 P_SIZE1 9 3 P_SIZE 2 10 2 P_SIZE 3 11 1 OUTBIN_FULL 12 2 NC 1 1 24 V 2 CN-4 4 DEV_PWM 3 3 24 V 4 6 MHV_PWM5 5 Power 5 24 V 6 Supply 8 GND 7 Board 7 GND 10 MHV_READ 8 9 CN-104 9 GND 10 12 1THV_READ 11 CN-3 11 14 3.3 V THV_EN 12 13 13 13.3 V 14 16 THV_PWM 15 15 GND 16 CN-2 18 24 VS 17 17 GND 18 20 VCC 19 CN-1 19 VCC 22 NC 20 21 21 P_EXIT 22 24 P_DUPLEX 23 23 FUSER 24 CN-14 Connector Board 8 24 VS 1 7 7MAIN_CLUT 2 CN-10 6 MP_CLUT 3 5 REGI_CLUT 4 CN-12 4 MP_EMPTY 5 3 3.3 V 6 CN-11 2 CST_OUT 7 1 GND 8 CN-13 SW-1 1 2 Main Board 3 4 5 CN-6 CN-10 6 7 8 9 0 1 2 LSUCLK /LREADY /PMOTOR GND 24 V 3.3 V VDO- VDO+ /LD_ON GND 5 VS /HSINK 1 2 3 Polygon 4 Motor 5 7 Laser 6 5 Laser 4 3 Diode 2 1 CN-18 CN-14 CN-20 1 24 V 2 24 V 3 24 VS 4 24 VS 5 GND 6 5 VS CN-1 Cover Interconnect Board CN-2 1 24 V 2 24 VS 1 2 CN-4 3 4 5 6 1 2 CN-8 3 4 1 2 3 4 CN-11 5 6 7 8 9 CN-1 VCC 3.3 V PANEL_TX PANEL_RX PANEL_RST GND PA_1 PA_2 PB_1 PB_2 24 VS 24 VS GND GND GND VCC /START_STOP MOT_READY MOT_CLK 3.3 V SCF_STS SCF_GND SCF_CLK SCF_RDY 24 V GND GND 6 5 4 3 CN-1 2 1 4 3 2 1 9 8 7 6 5 4 3 2 1 8 7 6 5 4 CN-9 3 2 1 1 CN-15 2 3 24 V NC GND 1 24 V CN-21 2 GND 1 VCC CN-17 2 GND Cover Open Board Front Panel Exit Motor Main Drive Motor 500 Sheet Feeder Main_Fan Sub_Fan Erase Lamp s3450-199 Print Engine Interconnect Diagram Use the following interconnect diagram to identify specific connectors (CN) within the printer with respect to the main components.

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10-2
Phaser 3450 Laser Printer
Service Manual
Print Engine Interconnect Diagram
Use the following interconnect diagram to identify specific connectors (CN) within
the printer with respect to the main components.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
2
1
4
3
6
5
8
7
10
9
12
11
14
13
16
15
18
17
20
19
22
21
24
23
NC
24 V
DEV
_
PWM
24 V
MHV
_
PWM5
24 V
GND
GND
MHV
_
READ
GND
1THV
_
READ
3.3 V
THV
_
EN
13.3 V
THV
_
PWM
GND
24 VS
GND
VCC
VCC
NC
P
_
EXIT
P
_
DUPLEX
FUSER
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
0
1
2
1
2
24 V
24 VS
1
2
3
4
5
6
1
2
3
4
1
2
3
4
5
6
7
8
9
1
2
3
1
2
1
2
24 V
GND
VCC
GND
24 V
NC
GND
8
7
6
5
4
3
2
1
3.3 V
SCF
_
STS
SCF
_
GND
SCF
_
CLK
SCF
_
RDY
24 V
GND
GND
9
8
7
6
5
4
3
2
1
24 VS
24 VS
GND
GND
GND
VCC
/START
_
STOP
MOT
_
READY
MOT
_
CLK
4
3
2
1
PA
_
1
PA
_
2
PB
_
1
PB
_
2
6
5
4
3
2
1
VCC
3.3 V
PANEL
_
TX
PANEL
_
RX
PANEL
_
RST
GND
LSUCLK
/LREADY
/PMOTOR
GND
24 V
3.3 V
VDO–
VDO+
/LD_ON
GND
5 VS
/HSINK
1
2
3
4
5
7
6
5
4
3
2
1
12
11
10
9
8
7
6
5
4
3
2
1
GND
CART
_
CLK
CART
_
DATA
3.3 V
P
_
EMPTY
P
_
REGI
THERM 1
THERM 2
P
_
SIZE1
P
_
SIZE 2
P
_
SIZE 3
OUTBIN
_
FULL
1
2
3
4
5
6
7
8
8
7
6
5
4
3
2
1
24 VS
7MAIN
_
CLUT
MP
_
CLUT
REGI
_
CLUT
MP
_
EMPTY
3.3 V
CST
_
OUT
GND
1
2
3
4
P
_
SIZE 1
P
_
SIZE 2
P
_
SIZE 3
GND
1
2
3
4
GND
P
_
REGI
P
_
EMPTY
3.3 V
1
2
THERM 1
THERM 2
1
2
3
1
2
3
3.3 V
BIN
_
FULL
GND
VCC
SIGNAL
GND
1
2
3
1
2
3
4
5
6
7
8
MHV
NC
NC
OPC
_
GND
NC
SUPPLY
NC
DEV
3.3 V
SIGNAL
GND
1
2
1
2
3
1
2
3
1
2
1
2
1
2
3
24 V
NC
GND
24 V
GND
24 V
GND
5 V
SIGNAL
GND
1
2
3
NC
GND
CST
_
OUT
Output Full
Sensor
Thermistor
Paper Size
Board
CN-1
CN-3
CN-20
CN-4
CN-8
CN-11
CN-1
CN-15
CN-21
CN-17
CN-10
CN-12
CN-3
CN-8
CN-4
CN-4
CN-104
CN-2
CN-18
CN-1
1
2
3
4
5
6
24 V
24 V
24 VS
24 VS
GND
5 VS
CN-1
CN-2
CN-9
CN-14
CN-6
CN-1
CN-14
CN-10
CN-11
CN-13
SW-1
CN-9
CN-7
CN-2
Paper Out
Sensor
Fuser Exit
Sensor
Print
Cartridge
Fuser Heat
Lamp
AC Input
Registration
Clutch
Erase
Lamp
Sub_Fan
Main_Fan
500 Sheet
Feeder
Main Drive
Motor
Exit Motor
Front
Panel
Cover Open
Board
Main Board
Power
Supply
Board
Print Cartridge
Interconnect
Board
Connector
Board
Laser
Laser
Diode
Polygon
Motor
Tray 2
Solenoid
Tray 1
Solenoid
Tray 1 Empty
Sensor
Tray 2 Out
Switch
Registration
Sensor
s3450-199
Cover
Interconnect
Board