System Diagram
Service Manual
5-8
L
S
U
CN34
LSU 1&2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
LSU_LD_3_POWER
nLDON_LSU_3
GND
nHSYNC_3_P
nHSYNC_3_N
GND
5V_LSU
nSH_LSU_3_2B
GND
VDO_3_2B_N
VDO_3_2B_P
GND
VDO_3_1B_N
VDO_3_1B_P
GND
nSH_LSU_3_1B
(NC)
LSU_LD_4_POWER
nLDON_LSU_4
GND
nHSYNC_4_P
nHSYNC_4_N
GND
5V_LSU
nSH_LSU_4_1B
GND
VDO_4_1B_N
VDO_4_1B_P
GND
VDO_4_2B_N
VDO_4_2B_P
GND
nSH_LSU_4_2B
(NC)
CN34
LSU 1&2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
LSU_LD_1_POWER
nLDON_LSU_1
GND
nHSYNC_1_P
nHSYNC_1_N
GND
5V_LSU
nSH_LSU_1_2B
GND
VDO_1_2B_N
VDO_1_2B_P
GND
VDO_1_1B_N
VDO_1_1B_P
GND
nSH_LSU_1_1B
LSU_LD_2_POWER
nLDON_LSU_2
GND
nHSYNC_2_P
nHSYNC_2_N
GND
5V_LSU
nSH_LSU_2_1B
GND
VDO_2_1B_N
VDO_2_1B_P
GND
VDO_2_2B_N
VDO_2_2B_P
GND
nSH_LSU_2_2B
CN15
ACR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
INNER_TEMP
GND
CTD1_S
CTD1_P
PWM_CR_LED_1
GND
5V3_ACR
CTD2_S
CTD2_P
PWM_CR_LED_2
GND
5V3_ACR
CTD3_S
CTD3_P
PWM_CR_LED_3
GND
5V3_ACR
CN21
LSU P-MOTOR
1
2
3
4
5
6
7
8
9
10
24V4
GND
nSTART_LSU_MOT_1
nREADY_LSU_1_2
CLK_LSU_MOT_1
24V4
GND
nSTART_LSU_MOT_4
nREADY_LSU_3_4
CLK_LSU_MOT_4
CN100
LSU TEMP
1
2
LSU_TEMP
GND
CN39
WASTE MOT & LSU CLN
1
2
3
4
5
6
7
8
9
10
DMOT_LSU_CLN_OUTA
DMOT_LSU_CLN_OUTB
3.3V
GND
nSENS_LSU_CLEAN
24VS1
ON_DMOT_WASTE
3.3V
GND
nSENS_WASTE_MOT
CN18
COVER OPEN LOWER
1
2
3
4
5
24V1
24V1
(NC)
24VS1
24VS1
CN7
COVER OPEN UPPER
1
2
3
5V3
(NC)
5VS3
CN23
SMPS1(24V)
1
2
3
4
5
6
7
8
24V1
GND
24V2
GND
24V3
GND
24V4
GND
CN20
SMPS2(5V)
1
2
3
4
5
6
5V1_SMPS
GND
5V2_SMPS
GND
5V3_SMPS
GND
CN20
SMPS3(signal)
1
2
3
4
5
6
5V3_SMPS
EN_24V
24V4
(NC)
(NC)
(NC)
CN3
THERMISTOR
1
2
3
4
5
6
7
8
9
10
3.3V
GND
nDETECT_COVER_EXIT
FUSER_THERM1
GND
FUSER_THERM2
GND
FUSER_FUSE1
FUSER_FUSE2
GND
CN26
BLDC BK
1
2
3
4
5
6
7
8
9
10
11
12
13
3.3V
GND
nSENS_OPCHOME_4
BLDC_BK_DIR
CLK_BLDC_BK
nBLDC_BK_READY
nBLDC_BK_EN
5V3
BLDC_BK_BRAKE
GND
GND
24VS2
24VS2
CN16
T2 & BLDC ITB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
DMOT_T2_OUTB
DMOT_T2_OUTA
3.3V
GND
nSENS_T2_ENGAGE
BLDC_ITB_DIR
CLK_BLDC_ITB
nBLDC_ITB_READY
nBLDC_ITB_EN
5V3
BLDC_ITB_BRAKE
GND
GND
24VS2
24VS2
CN28
BLDC DEVE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
3.3V
GND
nSENS_OPCHOME_123
BLDC_DEV_DIR
CLK_BLDC_DEV
nBLDC_DEV_READY
nBLDC_DEV_EN
5V3
GND
GND
GND
24VS1
24VS1
(NC)
CN8
BASE & DUPLEX
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
3.3V
GND
nSENS_PAPER_UPLIMIT
3.3V
GND
nSENS_P_EMPTY
ON_DMOT_ELEV
24V3
3.3V
GND
nDETECT_CST
GND
nPAPERSIZE2
nPAPERSIZE1
nPAPERSIZE0
3.3V
GND
nSENS_PAPER_NEAREND
24VS1
DUPLEX_CLUTCH
PWM_DUPLEX1_FAN
SENS_FAN_DUPLEX1
GND
PWM_DUPLEX1_FAN
SENS_FAN_DUPLEX1
GND
3.3V
GND
nSENS_DUPLEX
(NC)
CN102
TB CRUM IF
1
2
3
4
5
6
7
8
9
10
11
12
ON_DMOT_TNR_1
EN_DMOT_TNR_1
ON_DMOT_TNR_2
EN_DMOT_TNR_2
ON_DMOT_TNR_3
EN_DMOT_TNR_3
ON_DMOT_TNR_4
EN_DMOT_TNR_4
GND
SCL0_LPEC3
SDA0_LPEC3
3.3V
CN101
ITB CRUM IF
1
2
3
4
GND
SCL2_LPEC3
SDA2_LPEC3
3.3V
CN29
CLUTCHS
1
2
3
4
5
6
24V4
PICKUP_CLUTCH
24V4
FEED_CLUTCH
24V4
REGI_CLUTCH
CN30
DUPLEX & TOP SENS
1
2
3
4
5
6
3.3V
GND
nSENS_DUPLEX_READY
GND
nSENS_TOP
5V3
CN77
DEVE CRUM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
24VS1
GND
TSEN_VCONT_1
TONER_CON_1
TSEN_VCONT_2
TONER_CON_2
TSEN_VCONT_3
TONER_CON_3
TSEN_VCONT_4
TONER_CON_4
5V3
EN_ERASER_123
EN_ERASER_4
GND
3.3V
SCL2_LPEC3
SDA2_LPEC3
GND
CN4
STEP MOTOR
1
2
3
4
5
6
7
8
B_STEP_EXIT
NB_STEP_EXIT
NA_STEP_EXIT
A_STEP_EXIT
B_STEP_DUPLEX
NB_STEP_DUPLEX
NA_STEP_DUPLEX
A_STEP_DUPLEX
CN38
MP
1
2
3
4
5
6
7
8
9
3.3V
GND
SENS_MP_EMPTY
24V4
MP_CLUTCH
24V4
MP_FEED_CLUTCH
SPK_P
SPK_M
CN37
FINISHER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
nDETECT_FINISHER
FINISHER_TXD
FINISHER_RXD
nRST_FINISHER
IF_FINISHER
3.3V
5V3
24V3
24V3
24V3
GND
GND
GND
GND
GND
CN32
SCF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
(NC)
(NC)
GND
GND
GND
nCMD_REQ_SCF
SCF_RXD
nRST_SCF
3.3V
24V3
24V3
(NC)
(NC)
GND
GND
(NC)
IF_SCF
nBUSY_SCF
SCF_TXD
3.3V
GND
24V3
CN24
BLDC OPC
1
2
3
4
5
6
7
8
9
10
11
12
BLDC_OPC_DIR
CLK_BLDC_OPC
nBLDC_OPC_READY
nBLDC_OPC_EN
5V3
BLDC_OPC_BRAKE
GND
GND
24VS1
24VS1
DMOT_T1_OUTA
DMOT_T1_OUTB
CN5
BLDC FUSER
1
2
3
4
5
6
7
8
9
10
BLDC_FUSER_DIR
CLK_FUSER_ITB
nBLDC_FUSER_READY
nBLDC_FUSER_EN
5V3
BLDC_FUSER_BRAKE
GND
GND
24VS2
24VS2
CN33
HVPS2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
GND
WASTE_FULL
GND
PWM_LSU_SIDE_FAN
READ_THV1_4
READ_THV1_2
GND
PWM_FUSER_BIAS
nEN_THV2
PWM_THV1_4
PWM_THV1_2
GND
24VS2
PWM_THV1_1
PWM_THV1_3
PWM_THV2
PWM_SAWPLATE
5V3
READ_THV1_1
READ_THV1_3
READ_THV2
SENS_FAN_LSU_SIDE
ON_WASTE_LED
5V3
CN25
HVPS1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
READ_MHV_4
READ_MHV_2
GND
PWM_DEV_DC_4
PWM_DEV_DC_2
PWM_MHV_4
PWM_MHV_2
GND
24VS2
PWM_AC_VPP_1
PWM_AC_VPP_2
PWM_AC_VPP_3
PWM_AC_VPP_4
PWM_AC_1
PWM_AC_2
PWM_AC_3
PWM_AC_4
nEN_AC_1
nEN_AC_2
nEN_AC_3
nEN_AC_4
24VS2
GND
PWM_MHV_1
PWM_MHV_3
PWM_DEV_DC_1
PWM_DEV_DC_3
5V3
READ_MHV_1
READ_MHV_3
CN27
FAN & FUSER & HUMI
1
2
3
4
5
6
7
8
9
10
11
12
13
24V3
SENS_FAN_SMPS
PWM_SMPS_FAN
GND
EN_RELAY_AC
ZERO_CROSS
HEAT_FUSER2
HEAT_FUSER1
24VS2
OUT_TEMP
GND
HUMIDITY
5V3
C
N
1
2
M
A
IN
_
IF
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
2
0
2
1
2
2
2
3
2
4
2
5
2
6
2
7
2
8
2
9
3
0
3
1
3
2
3
3
3
4
3
5
3
6
3
7
3
8
3
9
4
0
4
1
4
2
4
3
4
4
4
5
4
6
4
7
4
8
4
9
5
0
5
1
5
2
5
3
5
4
5
5
5
6
5
7
5
8
5
9
6
0
6
1
6
2
6
3
6
4
6
5
6
6
6
7
6
8
6
9
7
0
7
1
7
2
7
3
7
4
7
5
7
6
7
7
7
8
7
9
8
0
S
P
K
_
P
S
P
K
_
M
S
O
F
T
_
B
U
T
T
O
N
G
N
D
n
V
D
I_
1
_
1
B
G
N
D
n
V
D
I_
2
_
1
B
G
N
D
n
V
D
I_
3
_
1
B
G
N
D
n
V
D
I_
4
_
1
B
G
N
D
n
V
D
I_
1
_
2
B
G
N
D
n
V
D
I_
2
_
2
B
G
N
D
n
V
D
I_
3
_
2
B
G
N
D
n
V
D
I_
4
_
2
B
G
N
D
V
C
L
K
_
1
_
1
B
G
N
D
V
C
L
K
_
2
_
1
B
G
N
D
V
C
L
K
_
3
_
1
B
G
N
D
V
C
L
K
_
4
_
1
B
G
N
D
n
L
S
Y
N
C
_
1
_
1
B
n
L
S
Y
N
C
_
2
_
1
B
n
L
S
Y
N
C
_
3
_
1
B
n
L
S
Y
N
C
_
4
_
1
B
G
N
D
n
P
S
Y
N
C
_
1
n
P
S
Y
N
C
_
2
n
P
S
Y
N
C
_
3
n
P
S
Y
N
C
_
4
G
N
D
n
P
R
IN
T
n
E
N
D
P
A
G
E
n
R
S
T
_
S
Y
S
T
E
M
G
N
D
V
B
U
S
_
E
N
G
D
N
_
E
N
G
D
P
_
E
N
G
G
N
D
5
V
1
5
V
1
5
V
1
5
V
1
G
N
D
5
V
1
5
V
1
5
V
1
5
V
1
G
N
D
5
V
2
5
V
2
5
V
2
5
V
2
G
N
D
5
V
2
5
V
2
5
V
2
5
V
2
G
N
D
5
V
3
5
V
3
n
R
E
A
D
Y
_
E
N
G
IN
E
n
A
C
R
_
E
N
G
IN
E
n
E
R
R
O
R
_
E
N
G
IN
E
nINT_ENGI
N
E
n
E
X
IT
_
E
N
G
IN
E
n
P
R
IN
T
_
A
C
K
G
N
D
2
4
V
4
2
4
V
4
G
N
D
2
4
V
4
2
4
V
4
C
N
1
4
D
O
W
N
L
O
A
D
1
2
3
4
5
6
7
T
C
L
K
T
D
I
1
.8
V
3
.3
V
G
N
D
n
T
R
S
T
P
R
O
G
R
A
M
C
N
1
0
U
S
B
1
2
3
4
V
B
U
S
D
N
D
P
(D
P
U
L
L
U
P
)
G
N
D
C
N
9
P
A
N
E
L
1
2
3
4
5
G
N
D
5
V
3
P
A
N
E
L
_
T
X
D
n
R
S
T
_
P
A
N
E
L
P
A
N
E
L
_
R
X
D
C
N
1
1
D
E
B
U
G
1
2
3
4
3
.3
V
D
E
B
U
G
_
T
X
D
DEBUG_
R
XD
G
N
D
1
2
3
PHOTO
INTERRUPTOR
1
2
3
PHOTO
INTERRUPTOR
1
2
3
PHOTO
INTERRUPTOR
-Reflective
CN6
EXIT SENS
1
2
3
3.3V
GND
nSENS_P_EXIT
CN35
T1 ENGAGE SENS
1
2
3
3.3V
GND
nSENS_T1_ENGAGE
CN31
REGI SENS
1
2
3
GND
nSENS_REGI
5V3
CN1
EXIT
1
2
3
4
5
3.3V
GND
nSENS_OUTBIN_FULL
24V3
GATE_CLUTCH
1
2
3
PHOTO
INTERRUPTOR
1
2
ELECTRIC-
CLUTCH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
10
1
2
THERMISTOR
1
2
3
4
5
ACR/CTD
SEMSOR
1
2
3
4
5
ACR/CTD
SEMSOR
1
2
3
4
5
ACR/CTD
SEMSOR
1
2
3
PHOTO
INTERRUPTOR
1
2
ELECTRIC-
CLUTCH
1
2
ELECTRIC-
CLUTCH
1
2
SPEAKER
1
2
SWITCH
1
2
SWITCH
1
2
SWITCH
1
2
3
4
5
6
7
8
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
PHOTO
INTERRUPTOR
1
2
THERMISTOR
1
2
THERMISTOR
1
2
3
PBA-F_CRUM
1
2
3
PHOTO
INTERRUPTOR
1
2
3
4
5
6
7
8
9
10
BLDC
1
2
3
4
5
6
7
8
9
10
BLDC
1
2
DC MOTOR
1
2
3
PHOTO
INTERRUPTOR
1
2
3
4
5
6
7
8
9
10
BLDC
1
2
3
PHOTO
INTERRUPTOR
1
2
3
PHOTO
INTERRUPTOR
1
2
DC MOTOR
1
2
3
PHOTO
INTERRUPTOR
1
2
DC MOTOR
1
2
THERMISTOR
1
2
3
4
STEP MOTOR
1
2
3
4
STEP MOTOR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
3
PHOTO
INTERRUPTOR
1
2
3
PHOTO
INTERRUPTOR
1
2
ELECTRIC-
CLUTCH
ELECTRIC-
CLUTCH
1
2
ELECTRIC-
CLUTCH
1
2
1
2
3
4
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
PHOTO
INTERRUPTOR
1
2
DC MOTOR
1
2
3
4
5
6
7
PBA-CASSETE
1
2
3
PHOTO
INTERRUPTOR
1
2
3
PHOTO
INTERRUPTOR
1
2
ELECTRIC-
CLUTCH
1
2
3
FAN
1
2
3
FAN
1
2
3
PHOTO
INTERRUPTOR
1
2
3
4
5
6
1
2
3
FAN
1
2
3
4
HUMIDITY /
TEMPARATURE
SENSOR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
10
BLDC
1
2
3
4
5
6
7
8
9
10
BLDC
1
2
DC MOTOR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
P
B
A
-F
IN
IS
H
E
R
_
IF
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
D
R
A
W
E
R
ˀ
C
O
N
N
E
C
T
O
R
A
M
P
, 5
-2
9
2
1
7
8
-1
(se
e
S
C
F
p
a
rt
fo
r
m
o
re
in
fo
rm
a
tio
n
)
D
-S
U
B
7
5
0
1
S
-1
5
G
1
T
J11
J10
J9
J8
J7
J6
J5
J4
J3
J2
J1
J22
J21
J20
J19
J18
J17
J16
J15
J14
J13
J12
P
B
A
-H
V
P
S
_
L
CN7
1
2
3
4
5
6
7
8
9
10
11
12
GND
GND
GND
24VS2
24VS2
5V3
PWM_FUSER_BIAS
PWM_DEV_DC_4
PWM_DEV_DC_2
PWM_DEV_DC_1
PWM_DEV_DC_3
PWM_SAWPLATE
1
2
3
PWM_LSU_SIDE_FAN
SENS_FAN_LSU_DISE
GND
1
2
3
4
GND
WASTE_FULL
ON_WASTE_LED
5V3
CN3
CN4
CN34
CN33
CN1
CN2
1
2
3
4
PBA-
WASTE_SENSOR
1
2
3
FAN
12
11
10
9
8
7
6
5
4
3
2
1
P
B
A
-H
V
P
S
_
S
CN1
CN9
PB
A-TB_
CRUM
_IF
1
2
3
4
5
6
7
8
(NC)
(NC)
GND
SCL
DATA
VCC
(NC)
(NC)
CN1 (CRUM Y)
CN2 (CRUM C)
CN3 (CRUM M)
CN4 (CRUM K)
1
2
ON_DMOT_TNR_1
EN_DMOT_TNR_1
CN5 (MOT Y)
1
2
ON_DMOT_TNR_2
EN_DMOT_TNR_2
CN6 (MOT M)
1
2
ON_DMOT_TNR_3
EN_DMOT_TNR_3
CN7 (MOT C)
1
2
ON_DMOT_TNR_4
EN_DMOT_TNR_4
CN8 (MOT K)
CN1
P
B
A
-
IT
B
_
C
R
U
M
_
IF
CN11
1
2
3
4
5
6
7
8
TSEN_VCONT_1,2,3,4
24VS1
TONER_CON_1,2,3,4
GND
GND
SCL2_LPEC3
SDA_LPEC3
3.3V
CN12 (DEVE 1)
CN3 (DEVE 2)
CN4 (DEVE 3)
CN5 (DEVE 4)
1
2
5V3
EN_ERASER_123,4
CN7 (ERASER 1)
CN8 (ERASER 1)
CN9 (ERASER 1)
CN10 (ERASER 1)
P
B
A
-D
E
V
E
_
C
R
U
M
_
IF
PBA-
CLX8380_ENGINE
PBA-FDB
P
B
A
-S
M
P
S
5.2.2 Engine Controller
Summary of Contents for MFX-C4000
Page 2: ......
Page 14: ...Precautions Service Manual 1 6 ...
Page 35: ...Service Manual 2 21 Video Controller Power Distribution Product Specifications and Features ...
Page 37: ...Service Manual 2 23 Engine Controller Power Distribution Product Specifications and Features ...
Page 39: ...Service Manual 2 25 DADF Block Diagram Product Specifications and Features ...
Page 106: ...Maintenance and Disassembly Service Manual 3 44 ...
Page 216: ...Alignment Troubleshooting Service Manual 4 110 ...
Page 217: ...System Diagram Service Manual 5 1 5 System Diagram 5 1 Block Diagram 5 1 1 System ...
Page 218: ...System Diagram Service Manual 5 2 5 1 2 Video Controller ...
Page 219: ...System Diagram Service Manual 5 3 5 1 3 Engin Controller ...
Page 220: ...System Diagram Service Manual 5 4 5 1 4 OPE Unit ...
Page 221: ...System Diagram Service Manual 5 5 5 1 5 DADF ...
Page 222: ...System Diagram Service Manual 5 6 5 1 6 SCF HCF ...
Page 225: ...System Diagram Service Manual 5 9 5 2 3 OPE Unit ...
Page 226: ...System Diagram Service Manual 5 10 5 2 4 DADF ...
Page 227: ...System Diagram Service Manual 5 11 5 2 5 SCF HCF ...
Page 228: ...System Diagram Service Manual 5 12 ...
Page 237: ...Reference Information Service Manual 6 9 ...
Page 238: ...Reference Information Service Manual 6 10 ...
Page 239: ...Reference Information Service Manual 6 11 ...
Page 240: ...Reference Information Service Manual 6 12 ...
Page 279: ......