User Guide

HP LaserJet 4350 wiring diagram
1
2
3
1
2
3
Multi-purpose
tray paper
sensor
Stacker
or
Staple
stacker
Paper stack
surface sensor
Paper feeder or Paper deck
Envelope feeder
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
24R
24R
24R
/MMFG
/MMDEC
/MMACC
GND
GND
GND
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
GND
3.3V
FPO
FPI
FPCK
/FPCS
GND
5V
1
2
3
4
5
6
7
8
C16
C16
B16
B16
A16
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
B1
B1
B2
B2
B3
B3
B4
B4
B5
B5
B6
B6
B7
B7
B8
B8
B9
B9
B10
B10
B11
B11
B12
B12
B13
B13
B14
B14
B15
B15
C15
C15
C14
C14
C13
C13
C12
C12
C11
C11
C10
C10
C9
C9
C8
C8
C7
C7
C6
C6
C5
C5
C4
C4
C3
C3
C2
C2
C1
C1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1
2
1
2
1
3
5
7
9
11
13
15
17
19
21
23
2
4
6
8
10
12
14
16
18
20
22
1
3
5
7
9
11
13
15
17
19
21
23
2
4
6
8
10
12
14
16
18
20
22
1
3
5
7
9
11
13
15
17
19
21
2
4
6
8
10
12
14
16
18
20
2
4
6
8
10
12
14
16
18
20
1
3
5
7
9
11
13
15
17
19
21
4
3
2
1
4
3
2
1
1
2
3
4
1
2
3
4
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
1
2
3
4
1
2
3
4
3
2
1
3
2
1
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
1
2
3
1
2
1
2
1
2
3
1
2
3
3
2
1
3
2
1
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
3
1
2
3
1 2 3
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
5
4
3
2
1
4
3
2
1
8
7
6
5
1
2
3
4
8
7
6
5
1
2
3
4
1
2
3
4
5
1
2
3
4
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
12
11
10
9
8
7
6
5
4
3
2
1
12
11
10
9
8
7
6
5
4
3
2
1
3
2
1
3
2
1
4
3
2
1
4
3
2
1
1
2
1 2 3
1 2 3
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
7
6
5
4
3
2
1
7
6
5
4
3
2
1
1
2
3
4
5
6
7
1
2
3
4
5
6
7
4
3
2
1
3
2
1
1
2
3
1
2
3
4
6
5
4
3
2
1
6
5
4
3
2
1
1
2
1
2
1 2
3
2
1
3
2
1
3
2
1
4
3
2
1
4
3
2
1
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
1
2
3
1
2
3
1
2
3
1 2 3
2
1
2
1
2
1
3
2
1
1 3
1 2 3
1 3
1 2 3
1
2
1
2
2
1
2
1
A6
A6
B6
B6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
1
2
1
2
1
2
3
1
2
3
6
5
4
3
2
1
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
1
2
3
4
3
2
1
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
3
2
1
4
3
2
1
1
1
2
1
2
1
2
1
2
1
1
2
1
2
1
1
2
1
PWRON
CAN-L
CAN-H
GND
GND
/PDLV
/PFED
/TOP
/CCRT
SCLK
SC
GND
/BD
GND
VDO2
/VDO2
GND
GND
/VDO1
VDO1
GND
GND
5V
5V
FPO
FPCK
/FPCS
FPI
PWRON
CAN-L
CAN-H
GND
GND
/PDLV
/PFED
/TOP
/CCRT
SCLK
SC
GND
/BD
GND
VDO2
/VDO2
GND
GND
/VDO1
VDO1
GND
GND
5V
5V
FPO
FPCK
/FPCS
FPI
FPCK
/FPCS
FPI
+5V
FPO
GND
SDL
SCL
GND
VDO1
/VDO1
GND
GND
GND
GND
VDO2
/VDO2
GND
/BD
GND
GND
SC
SCLK
GND
/CCRT
/TOP
GND
/PFED
/PDLV
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
GND
CAN-H
CAN-L
GND
PWRON
GND
GND
GND
GND
GND
FPCK
/FPCS
FPI
+5V
FPO
GND
SDL
SCL
GND
VDO1
/VDO1
GND
GND
GND
GND
VDO2
/VDO2
GND
/BD
GND
GND
SC
SCLK
GND
/CCRT
/TOP
GND
/PFED
/PDLV
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
GND
CAN-H
CAN-L
GND
PWRON
GND
GND
GND
GND
GND
24R
24R
/DMFG
/DMDEC
/DMACC
GND
GND
GND
/CSTSIZE0
/CSTSIZE1
GND
/CSTSIZE2
CSTSNSDR
GND
/CSTSNS
PLVLSNSDR
GND
/PLVLSNS
24R
/LMON
OPSCLK
OPSIN
OPSOUT
GND
/SEL0
24R
NC
GND
/SEL0
24VA
OPSCLK
OPSIN
OPSOUT
PRIPWM
/PRACCK
/DEVACCK
/DEVACON
TNRSP1
TNRSP2
/PRDCPWM
/DEVDCCK
DEVACCH
/TRFMCK
/PRDCCK
/TRFPCK
TRFPPWM
TRFAD
/DEVDCPWM
FSRPWM
/HISPD
GND
GND
24VB
24VB
PRIPWM
/PRACCK
/DEVACCK
/DEVACON
TNRSP1
TNRSP2
/PRDCPWM
/DEVDCCK
DEVACCH
/TRFMCK
/PRDCCK
/TRFPCK
TRFPPWM
TRFAD
/DEVDCPWM
FSRPWM
/HISPD
GND
GND
24VB
24VB
NC
ENVTMP
ENVTMPG
MFLK
/MFHF
MFFL
/CURLIM
CURRMS
/RLD
FSRSAFE
FSRD2
FSRD1
/ZEROX
/AC200
5V
5V
5V
5V
5V
GND
GND
GND
GND
NC
ENVTMP
ENVTMPG
MFLK
/MFHF
MFFL
/CURLIM
CURRMS
FSRSAFE
/RLD
FSRD2
FSRD1
/ZEROX
/AC200
5V
5V
5V
5V
5V
GND
GND
GND
GND
3.3V
GND
24VB
/FSRCK
COILA
COILB
3.3V
GND
24VB
/FSRCK
ENVTMP
ENVTMPG
ENVTMPG
MFDRV
MFLK
GND
N
H
N
H
/WIDTH2SNS
GND
WIDTH2DR
/MPSNS
GND
MPDR
/TOPSNS
GND
TOPDR
/PRESNS
GND
PREDR
/WIDTHSNS
GND
WIDTHDR
FULDR
GND
FULSNS
24R
/MPSL
24R
NC
/TRCL
24R
/SEL1
GND
OPSOUT
OPSIN
OPSCLK
24R
/SEL1
GND
OPSOUT
OPSIN
OPSCLK
GND
CAN-H
CAN-L
GND
GND
PWRON
24U
24U
VDO1
/VDO1
CNT0
CNT1
CNT2
VDO2
/VDO2
LPHI
PDOUT
GND
5V
24R
/SMACC
/SMDEC
GND
3.3V
/BDI
GND
MFDRV
MFLK
GND
IOTTXD
3.3V
IOTRXD
GND
GND
CAN-H
CAN-L
GND
GND
PWRON
24R
24R
SW800
SW101
M
J88
J901
J905
J905M
J118DA
J118D
J906
J118DB
SL
CL
1
2
1
2
PS104
SL102
CL101
PS103
PS108
J83
J84
J94
J78
J96
J85
J92
J89
J97
J87
J81
J73
J51
J1300
J50
J80
J99
J76
TB33
TB36
TB32
TB34
TB31
TB35
24VA
GND
GND
GND
3.3V
3.3V
M101
J122
J98
J77
J200
TB102 TB86
TB101 TB85
GND
3.3V
GND
3.3V
J82
J103
J121
J86
J91
J93
J105DA
J105LA
J105DB
J105D
J105L
J105LB
J1001(1500F)
M102
M
M
M103
J109
PS107
PS101
J120
SW102
J90
S1103
S1102
S1101
24R
/SEL2
GND
OPSOUT
OPSIN
OPSCLK
GND
FSRTYP
GND
DELTH
FSRTHG1
FSRTH1
DELSNS
GND
DELDR
J71
J72
J124DB
J124DA
J124L
J124LA
J124LB
J703
J128DWH
J128DA
J128DB
J128DDW
J128LDW
J136M
J136F
TB28
J134M
J134F
TB16
TB15
J131DH
J131D
J131L
TH1
PS108
TH2
J129
J128MB
J135
TB17
TP1
TP
TB18
J137
H2
H1
TH3
FN101
TB10
TB12
TB11
TB1300
TB1301
HEATER1
HEATER2
FUSERBIAS1
FG
HEATERC
FUSERBIAS2
TB14
J63
J64
FG
N
H
N
H
J1
J01
J150
J0150
J128LB
J106DB
J106DA
J106LB
J106LA
J1101
FN103
J143
J144
J145
TB26
J113
J103F
J103M
S931
S932
1 2 3
PS106
1 2 3
PS102
J106L
J106D
J600
J123
1
2
3
4
5
6
7
8
24VA
GND
GND
GND
3.3V
3.3V
J807F
(500F)
24R
/SEL2
GND
OPSOUT
OPSIN
OPSCLK
Thermoswitch
1
2
3
1
2
3
12
24VA
NC
24VC
FT1
FT3
J95
24R
/CSTSL
SL
1
2
SL101
J79
FG
Test switch
Fuser unit
Heater
Cooling fan #1
Duplexing unit
Fuser delivery
paper sensor
Paper temperature
sensor
Fuser temperature
thermistor
Top of page
sensor
Pre-feed
sensor
PS105
Cooling fan #2
Face-down tray
paper full sensor
Multi-purpose tray
pick-up solenoid
Memory tag
Door open
detection switch
Laser driver
Laser/scanner unit
BD PCA
Scanner motor
Feed roller clutch
Main motor
Drum motor
Lifter motor
Cassette pick-up
solenoid
Paper size
switches
Cassette paper
sensor
Formatter
Operation panel
Paper width
#1 sensor
Paper width
#2 sensor
200V
LINE INPUT
100V
LINE INPUT
Environment
temperature
sensor
Intermediate PCA
DC controller PCA
Power supply PCA
Figure 7-29 HP LaserJet 4350 wiring diagram
Printer and accessory wiring diagrams 429