HP laserjet m712 Fehlerbehebungsanleitung
Circuit diagrams
Figure 2-59
General circuit diagram (1 of 2)
A
6
5
4
3
21
B
C
D
TP
A10
7
M
M
B10
SL
B10 A10
B5
A4
CL
CL
PSPWR
GND
FSROUTS
S3FSR
TH
GND
GND
S2FSR
TH
GND
S1FSR
TH
FSRD2
TON
S2
PRIACCNT
DEVACCLK
PRIDCCNT
PRIACCLK
DEVDCCNT
PRIACVPS
PRIACVDS
TRFVCNT
TRFCLK
RLD
PGND
PGND
PGND
PGND
VDO2
GND
CNT2
CNT1
CNT0
GND
/VDO1
VDO1
GND
GND
+5V
PDOUT
GND
/VDO2
TB957
TB951
TB953
TB954
TB955
TB956
/FMFGI
/FMDEC
/FMACC
PRI
DEV
PA
1
PA
2
TR
DIS
FSR
GND
GND
+24V
+24V
GND
GND
GND
/UCST SIZE0
/UCST SIZE1
GND
/UCST SIZE2
/LCST SIZE0
GND
/LCST SIZE2
/UCST SIZE3
GND
/UCST SIZE4
N.C
/LCST SIZE3
GND
/LCST SIZE4
N.C
/LCST SIZE1
HEA
TER1
HEA
TERC
HEA
TER2
FG
+3.3U
CLKA
CLKB
SNS3.3
GND
GND
+5V
SNS3.3
SNS3.3
+5V
/ZEROX
/PSTYP100
GND
+3.3V
GND
GND
GND
GND
SNS3.3
GND
SNS3.3
/CRGS
GND
SNS3.3
FULLS
U_LMTRDR1
L_LMTRDR1
L_LMTRDR2
U_LMTRDR2
TRFVS
+3.3V
MPTSL
DPX_EXST
DEVACCNT
TON
S1
S3FSRTH
S2FSRTH
S1FSRTH
MFSRTH
FSRD1
FSRTHLOW
GND
GND
FAN2LK
FAN2DR
+3.3VC
+3.3VC
+3.3VD
FSRCUR
/LOOPS
TRMCLK
/TOP_IN
DISCLK
PRIDCCLK
DISVCNT
TB952
SNS3.3
GND
LCSTS
GND
SNS3.3
/SMACC
/SMDEC
+24V
GND
GND
GND
+3.3VC
GND
+24VC
+24VD
+24VC
+24VB
UCSTS
FAN1DR
FAN
1L
K
GND
LCST_CL
UCST_CL
PWRLED
/PWRSW
GND
GND
FAN3LK
FAN3DR
DELS
/DMFGI
/DMDEC
/DMACC
+24VC
+24VB
/MPTS
GND
SNS3.3
+24VB
DPX CLK
DPX CMD
DPX STS
FDR_CMD
FDR_CLK
FDR_STS
+24VB
+24VB
+24VD
+24VD
+24VD
+24VD
+24VD
/SM_BDI
CRGDSW
GND
RMT_PFC
RMT_24V
HOT
NEUTRAL
GND
MFSR
TH
MFSR
TH
GND
S1FSR
TH
GND
S2FSR
TH
GND
GND
S3FSR
TH
FSROUTS
GND
PSPWR
RIGHTDSNS
+24VB
+24VB
+24VB
DPX_TMG
UCST_LUPS
LCST_LUPS
/MTRSTOP
FSROUTS
/ZEROX
/FDOFF
1
2
3
J15
321
SR7
SR5
CL2
CL1
1
2
3
J7
12
J18
1
2
J1800L
123
J9
J20DH
123
J20D
1234
J51D
3
2
1
FM1
J12D
123456
J43
123456
J48
21
J61D
1
2
J62D
1234567
J53
10
9
8
2
3
4
5
6
1
7
J4(P)
10 9
8
2
3
4
5
6
1
7
J32
123
J33
1
2
3
4
J400
3
2
1
FM3
1
2
3
J34
1
2
3
4
5
6
J45
2
1
J61DH
123
J41
12
J62DH
321
J51DH
13
12
1
1
10
9
8
2
3
4
5
61
7
J37
J57DH
J58LH
J15DH
1
2
3
J15D
J1800DH
J55DH
2
1
J1800D
J28DH
1
2
3
4
J51L
321
SR20
1
2
3
J1
1
2
3
J20L
12
J28L
1
2
J28D
123
J15L
20
18
16
1
2
3
4
5
6
7
8
9
10
1
1
13
15
17
19
21
23
12
14
22
J901
123
J44
J54DA
J54D
J54DB
14
13
12
11
10
9
8
2
3
4
5
6
1
7
J903
1234567
J54
1234
J63
1
2
3
4
J74
21
J3(P)
1
2
J21F
2
1
SW3
2
1
SW9
2
1
SW1
2
4
13
2
J36
5
3
1
4
3
2
1
10
J1DA
3
2
1
4
J1D
J1DWH
5
J1DB
9
321
FM2
12
SL1
1
1
6
10
8
J1LB
4
1
2
3
J1L
J1LWH
J56DH
21
J57D
12
J57L
3
1
2
J3
21
SW2
321
SR10
3
2
1
SR6
321
SR8
3
2
1
SR1
1
2
3
J22
2
1
M4
TB203
3
2
1
J10
2
1
J5
1
2
J4
12
M5
J12DA
1234567
J52
2345
1
J19
2345
1
J46
FFC2
2
1
J62L
12
J61L
14
12
21
19
17
15
13
1
1
10
9
8
7
6
5
4
3
2
1
16
18
20
J61
3
2
1
J12
123
J13
21
J35
1
2
J56D
18
17
16
15
14
13
12
11
10
9
9
8
23456
17
J51
J6DH
2
1
J56L
1
2
3
4
J27
22
14
12
23
21
19
17
15
13
1
1
10
9
8
7
6
5
4
3
2
1
16
18
20
J62
7
16
5
4
3
2
8
9
1
01
1
1
21
31
41
5
J71
TB901
TB902
TB907
TB905
TB903
TB904
2
3
4
1
J31
2
1
J6D
2
1
J6L
3
2
1
J8
1
5432
J1
100
1
2
J21M
4
3
2
1
J1900
1
2
3
4
J26
321
J23
4321
J24
J1LA
2
1
J49
1
2
3
J21
1
5432
J47
TB200
TB201
TB202
14
13
12
1
1
10
9
8
2
3
4
5
61
7
J58L
7
16
5
4
3
2
8
9
1
01
1
1
21
31
4
J58D
1
3
4
2
SW6
2
431
SW4
4321
J25
2
431
SW5
1
3
4
2
SW7
2
3
5
6
7
3
8
7
6
1
21
TH4
1
2
TH3
MT2
12
TP1
TB2
TB1
9
1
J3F
1
J3M
1
2
TH2
21
TH1
4
5
6
1
2
H2
21
H1
4
2
3
5
4
2
7
9
10
8
7
6
5
3
2
1
4
4
1
2
3
7
8
9
10
15
14
13
12
11
10
9
9
8
23456
17
J801
20
18
16
1
2
3
4
5
6
7
8
9
10
1
1
13
15
17
19
21
12
14
J902
FFC3
3
2
1
SR3
3
2
1
SR4
3
2
1
SR9
321
SR1
1
1
2
3
4
5
6
J55L
123456
J55D
3
2
1
SR6
TB101
TB102
ENVTEMP
ENVHUM
Fusing motor (M3)
Main switch
Environment
sensor
E-label
Scanner motor
(M2)
Laser driver PCA
Drum motor (M1)
Duplexing unit
(accessory)
Fusing accessory
Low-voltage
power supply PCA
DC controller PCA
High-v
oltage
po
w
er supply PCA
Paper deck (accessory)
172
Chapter 2 Solve problems
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