Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man18) Service Manual ▷ View online
MX-4101N ELECTRICAL SECTION 10 – 37
3. Signal list
Signal
name
Name [Type]
Function/Operation
Connector level
Connector
No.
Pin
No.
No.
PWB
name
NOTE
"L"
"H"
1TNFD
Waste toner full detection
switch [Mechanical switch]
switch [Mechanical switch]
Detects waste toner full.
Empty
Full
CN14
7
PCU
1TUD_CL
Transfer belt separation CL
detection
detection
Detects the transfer belt
separation CL.
separation CL.
Separated
Contact
CN16
23
PCU
1TUD_K
Transfer belt separation BK
detection
detection
Detects the transfer belt
separation BK.
separation BK.
Separated
Contact
CN16
19
PCU
1TURC
Primary transfer separation
clutch [Electromagnetic clutch]
clutch [Electromagnetic clutch]
Controls the primary transfer
separation mode.
separation mode.
Separated
Contact
CN11
16
PCU
1TURC_R
Primary transfer separation
reverse clutch
[Electromagnetic clutch]
reverse clutch
[Electromagnetic clutch]
Controls the primary transfer
separation mode.
separation mode.
Separated
Contact
CN11
30
PCU
ADUGS
ADU gate solenoid
[Electromagnetic solenoid]
[Electromagnetic solenoid]
Controls the ADU gate.
ON
OFF
CN7
24
PCU
ADUM_L
ADU motor lower
[Stepping motor]
[Stepping motor]
Drives the right door section.
–
–
CN8
3,5,7,
9
9
PCU
Drives with the
4-phase signal.
4-phase signal.
ADUM_L_
C
C
ADU motor lower current
select
select
Selects the ADU motor lower
current.
current.
Large
current
Small
current
CN8
1
PCU
ADUM_U_
C
C
ADM upper motor current
select
select
Selects the ADM upper motor
current.
current.
Large
current
Small
current
CN12
14
PCU
APPD1
ADU transport path detection 1
[Transmission type]
[Transmission type]
Detects paper pass in the ADU
upper stream section.
upper stream section.
Pass
–
CN7
4
PCU
APPD2
ADU transport path detection 2
[Transmission type]
[Transmission type]
Detects paper pass in the ADU
medium stream section.
medium stream section.
Pass
–
CN7
18
PCU
BTM_CNT
Belt motor current select
Selects the belt motor current.
Large
current
Small
current
CN12
4
PCU
CAFM_LD
Cartridge fan lock detection
Detects the cartridge lock.
–
Lock
detection
CN16
27
PCU
CAFM_V#
Cartridge fan
Cools the cartridge.
OFF
ON
CN16
26
PCU
CCFM_LD
Process suction fan motor lock
detection
detection
Detects the process suction fan
motor lock.
motor lock.
–
Lock
detection
CN20
7
PCU
CCFM_V
Process suction fan motor
Cools the process.
Stop
Drive
CN20
4
PCU
CCFT
LCD backlight
[CCFT cool cathode ray tube]
[CCFT cool cathode ray tube]
LCD backlight
ON
OFF
CN13
6
SCU
CL
Scanner lamp
Radiates lights to the document
for the CCD to scan the
document images.
for the CCD to scan the
document images.
ON
OFF
CN5
3
SCU
CLUD1
Tray 1 upper limit detection
(Lift HP detection)
[Transmission type]
(Lift HP detection)
[Transmission type]
Detects the tray 1 upper limit.
–
Upper
limit
CN9
3
PCU
CLUD2
Tray 2 upper limit detection
(Lift HP detection)
[Transmission type]
(Lift HP detection)
[Transmission type]
Detects the tray 2 upper limit.
–
Upper
limit
CN9
4
PCU
CLUM1
Paper tray lift-up motor (Paper
feed tray 1) [DC brush motor]
feed tray 1) [DC brush motor]
Drives the paper tray lift plate.
Stop
Drive
CN5
8
PCU
CLUM2
Paper tray lift-up motor (Paper
feed tray 2) [DC brush motor]
feed tray 2) [DC brush motor]
Drives the paper tray lift plate.
Stop
Drive
CN5
10
PCU
CPED1
Tray 1 paper empty detection
[Transmission type]
[Transmission type]
Detects paper empty in the tray
1.
1.
YES
NO
CN9
9
PCU
CPED2
Tray 2 paper empty detection
[Transmission type]
[Transmission type]
Detects paper empty in the tray
2.
2.
YES
NO
CN9
10
PCU
CPFC
Tray vertical transport clutch
[Electromagnetic clutch]
[Electromagnetic clutch]
Controls ON/OFF of the paper
transport roller in the paper feed
tray section.
transport roller in the paper feed
tray section.
ON
OFF
CN5
1
PCU
CPFD1
Tray 1 transport detection
(Paper entry detection)
[Transmission type]
(Paper entry detection)
[Transmission type]
Detects paper pass in the tray 1.
Pass
–
CN9
15
PCU
CPFD2
Tray 2 transport detection
(Paper entry detection)
[Transmission type]
(Paper entry detection)
[Transmission type]
Detects paper pass in the tray 2.
Pass
–
CN9
16
PCU
CPFM_D
Paper feed motor
[Brushless motor]
[Brushless motor]
Drives the paper feed section.
Drive
Stop
CN6
24
PCU
CPFM_LD
Paper feed motor lock
detection
detection
Detects the paper feed motor
lock.
lock.
–
Lock
detection
CN6
22
PCU
CPUC1
Paper feed clutch (Paper feed
tray 1) [Electromagnetic clutch]
tray 1) [Electromagnetic clutch]
Controls ON/OFF of the roller in
the paper feed tray section.
the paper feed tray section.
ON
OFF
CN5
3
PCU
CPUC2
Paper feed clutch (Paper feed
tray 2) [Electromagnetic clutch]
tray 2) [Electromagnetic clutch]
Controls ON/OFF of the roller in
the paper feed tray section.
the paper feed tray section.
ON
OFF
CN5
5
PCU
CSPD1
Tray 1 remaining paper
quantity detection
quantity detection
Detects the remaining paper
quantity in the tray 1.
quantity in the tray 1.
Remaining
quantity
–
CN9
21
PCU
Detects during
lifting up.
lifting up.
CSPD2
Tray 2 remaining paper
quantity detection
quantity detection
Detects the remaining paper
quantity in the tray 2.
quantity in the tray 2.
Remaining
quantity
–
CN9
22
PCU
Detects during
lifting up.
lifting up.
CSS11
Tray 1 paper size detection 1
Tray 1 paper size detection 1
YES
NO
CN9
27
PCU
MX-4101N ELECTRICAL SECTION 10 – 38
CSS12
Tray 1 paper size detection 2
Tray 1 paper size detection 2
YES
NO
CN9
29
PCU
CSS13
Tray 1 paper size detection 3
Tray 1 paper size detection 3
YES
NO
CN9
31
PCU
CSS14
Tray 1 paper size detection 4
Tray 1 paper size detection 4
YES
NO
CN9
33
PCU
CSS21
Tray 2 paper size detection 1
Tray 2 paper size detection 1
YES
NO
CN9
28
PCU
CSS22
Tray 2 paper size detection 2
Tray 2 paper size detection 2
YES
NO
CN9
30
PCU
CSS23
Tray 2 paper size detection 3
Tray 2 paper size detection 3
YES
NO
CN9
32
PCU
CSS24
Tray 2 paper size detection 4
Tray 2 paper size detection 4
YES
NO
CN9
34
PCU
DHPD_C
C phase detection
Detects the C phase.
–
Reference
CN11
20
PCU
DHPD_K
BK phase detection
Detects the BL phase.
–
Reference
CN11
17
PCU
DHPD_M
M phase detection
Detects the M phase.
–
Reference
CN11
23
PCU
DHPD_Y
Y phase detection
Detects the Y phase.
–
Reference
CN11
26
PCU
DL_BK
Discharge lamp BK [LED]
Discharges electric charges on
the OPC drum.
the OPC drum.
OFF
ON
CN10
1
PCU
DL_C
Discharge lamp C [LED]
Discharges electric charges on
the OPC drum.
the OPC drum.
OFF
ON
CN10
21
PCU
DL_M
Discharge lamp M [LED]
Discharges electric charges on
the OPC drum.
the OPC drum.
OFF
ON
CN10
2
PCU
DL_Y
Discharge lamp Y [LED]
Discharges electric charges on
the OPC drum.
the OPC drum.
OFF
ON
CN10
22
PCU
DM_CL_
CNT
CNT
Drum motor (CL) current
select
select
Selects the drum motor (CL)
current.
current.
Large
current
Small
current
CN12
1
PCU
DM_K_
CNT
CNT
Drum motor (K) current select
Selects the drum motor (K)
current.
current.
Large
current
Small
current
CN12
11
PCU
DSW_
ADU
ADU
ADU transport open/close
detection [Transmission type]
detection [Transmission type]
Detects open/close of the ADU
cover.
cover.
Open
Close
CN2
7
RD I/F
DSW_C
Tray 1, 2 transport cover open/
close detection
close detection
Detects open/close of the tray 1,
2 transport cover.
2 transport cover.
Open
Close
CN8
28
PCU
DSW_F
Front door open/close switch
[Micro switch]
[Micro switch]
Detects open/close of the front
door, and fusing, motor, LSU
laser power line.
door, and fusing, motor, LSU
laser power line.
Open
Close
CN17
4
PCU
DSW_R
Right door open/close switch
[Micro switch]
[Micro switch]
Detects open/close of the right
door unit, and fusing, motor, LSU
laser power line.
door unit, and fusing, motor, LSU
laser power line.
Open
Close
CN17
2,3
PCU
DVM_CL_
D
D
Development drive motor (CL)
[Brushless motor]
[Brushless motor]
Drives the development section,
the color OPC drum, and the
transfer section.
the color OPC drum, and the
transfer section.
Drive
Stop
CN11
12
PCU
DVM_CL_
LD
LD
Development drive motor (CL)
lock detection
lock detection
Detects the development drive
motor (CL) lock.
motor (CL) lock.
–
Lock
detection
CN11
14
PCU
DVM_K_D
Development drive motor (K)
[Brushless motor]
[Brushless motor]
Drives the development section,
the black OPC drum, and the
transfer section.
the black OPC drum, and the
transfer section.
Drive
Stop
CN11
11
PCU
DVM_K_
LD
LD
Development drive motor (K)
lock detection
lock detection
Detects the development drive
motor (K) lock.
motor (K) lock.
–
Lock
detection
CN11
13
PCU
FUFM_LD
Fusing fan motor lock
detection
detection
Detects the fusing fan motor
lock.
lock.
–
Lock
detection
CN13
34
PCU
FUFM_V
Fusing fan motor
Cools motor related to the fusing
section and paper exit section.
section and paper exit section.
OFF
ON
CN13
33
PCU
FUM_D
Fusing motor
[Brushless motor]
[Brushless motor]
Drives the fusing unit.
Drive
Stop
CN14
29
PCU
FUM_LD
Fusing motor lock detection
Detects the fusing motor lock.
–
Lock
detection
CN14
31
PCU
HLOUT_
EX
EX
Heater lamp external
Turns ON/OFF the heater lamp
external.
external.
OFF
ON
CN14
12
PCU
HLOUT_
LM
LM
Heater lamp lower main
Turns ON/OFF the heater lamp
lower main.
lower main.
OFF
ON
CN14
10
PCU
HLOUT_
UM
UM
Heater lamp upper main
Turns ON/OFF the heater lamp
upper main.
upper main.
OFF
ON
CN14
14
PCU
HLOUT_
US
US
Heater lamp upper sub
Turns ON/OFF the heater lamp
upper sub.
upper sub.
OFF
ON
CN14
8
PCU
HLPCD
Fusing pressure detection
sensor [Transmission sensor]
sensor [Transmission sensor]
Detects a change in the fusing
pressure.
pressure.
Pressure
release
Pressure
applying
CN14
30
PCU
HPFM
Horizontal transport motor
[Stepping motor]
[Stepping motor]
Transports paper from the paper
feed section to the transport
motor drive system.
Transports paper from the right
door section to the transport
motor drive system.
feed section to the transport
motor drive system.
Transports paper from the right
door section to the transport
motor drive system.
–
–
CN8
6,8,
10,12
10,12
PCU
Drives with the
4-phase signal.
4-phase signal.
HPFM_
CNT
CNT
Horizontal transport motor
Selects the horizontal transport
motor current.
motor current.
Large
current
Small
current
CN8
4
PCU
HPOS
Shifter home position detection
Detects the shifter home
position.
position.
–
Home
position
CN13
28
PCU
HUD_M
Humidity detection
Detects the humidity.
–
–
CN7
8
PCU
Analog
detection
detection
Signal
name
Name [Type]
Function/Operation
Connector level
Connector
No.
Pin
No.
No.
PWB
name
NOTE
"L"
"H"
MX-4101N ELECTRICAL SECTION 10 – 39
LSUSS_B
LSU shutter solenoid
Controls open/close of the LSU
shutter.
shutter.
Open
Close
CN20
3
PCU
MC_BK_
ERR
ERR
High voltage BK error
detection
detection
Detects an abnormal output of
high voltage BK.
high voltage BK.
Error
detection
–
CN6
17
PCU
Judged when a
high voltage is
outputted.
high voltage is
outputted.
MC_CL_
ERR
ERR
High voltage CL error
detection
detection
Detects an abnormal output of
high voltage CL.
high voltage CL.
Error
detection
–
CN6
19
PCU
MHPS
Scanner home position
sensor [Transmission type]
sensor [Transmission type]
Detects the scanner home
position.
position.
–
Home
position
CN9
1
SCU
MIM
Scanner motor
[Stepping motor]
[Stepping motor]
Scanner (reading) section
–
–
CN4
1,2,3,
4
4
SCU
MPED
Manual feed paper empty
detection [Transmission type]
detection [Transmission type]
Detects paper empty in the
manual paper feed tray.
manual paper feed tray.
YES
NO
CN3
7
RD I/F
Manual paper
feed unit
feed unit
MPFD
Manual feed paper entry
detection [Transmission type]
detection [Transmission type]
Detects paper entry in the
manual paper feed tray.
manual paper feed tray.
Pass
–
CN7
6
PCU
MPFS
Paper pickup solenoid
(Manual paper feed)
[Electromagnetic solenoid]
(Manual paper feed)
[Electromagnetic solenoid]
Controls the paper pickup
solenoid (manual paper feed)
[Electromagnetic solenoid]
solenoid (manual paper feed)
[Electromagnetic solenoid]
Pickup
–
CN7
22
PCU
MPGS
Manual feed gate solenoid
[Electromagnetic solenoid]
[Electromagnetic solenoid]
Controls open/close of the
manual paper feed gate
solenoid.
manual paper feed gate
solenoid.
ON
OFF
CN7
14
PCU
MPLD
Manual feed paper length
detector
detector
Detects the paper length in the
manual paper feed tray.
manual paper feed tray.
Detection
–
CN3
16
RD I/F
Manual paper
feed unit
feed unit
MPUC
Manual paper feed clutch
[Electromagnetic clutch]
[Electromagnetic clutch]
Controls ON/OFF of the paper
feed roller in the manual paper
feed section.
feed roller in the manual paper
feed section.
ON
OFF
CN7
20
PCU
MPWD
Manual paper feed tray paper
width detector
[Volume resistance]
width detector
[Volume resistance]
Detects the paper width in the
manual paper feed tray.
manual paper feed tray.
–
–
CN7
7
PCU
Analog
detection
detection
MTOP1
Manual paper feed tray
pull-out position detection 1
pull-out position detection 1
Detects the pull-out position of
the manual paper feed tray.
(Retraction position)
the manual paper feed tray.
(Retraction position)
–
Storing
position
CN3
25
RD I/F
Manual paper
feed unit
feed unit
MTOP2
Manual paper feed tray
pull-out position detection 2
pull-out position detection 2
Detects the pull-out position of
the manual paper feed tray.
(Pull-out position)
the manual paper feed tray.
(Pull-out position)
–
Pull-out
position
position
CN3
22
RD I/F
Manual paper
feed unit
feed unit
OCSW
Original cover SW
[Transmission type]
[Transmission type]
Detects open/close of the
document cover (document size
detection trigger).
document cover (document size
detection trigger).
Close
Open
CN10
3
SCU
OSM
Shift motor [Stepping motor]
Offsets the paper.
–
–
CN13
16,17,
18,19
18,19
PCU
Drives with the
4-phase signal.
4-phase signal.
OZFM_
CNT
CNT
OZFM speed control
Controls the OZFM speed.
–
–
CN5
14
PCU
Pulse (Duty)
drive
drive
OZFM_
LD
LD
Ozone fan motor lock
detection
detection
Detects the ozone fan motor
lock.
lock.
–
Lock
detection
CN5
18
PCU
OZFM_V
Ozone fan motor
Discharges the ozone.
Stop
Drive
CN5
12
PCU
PCS_CL
Process control sensor
[Reflection type]
[Reflection type]
Detects the toner patch density.
–
–
CN6
9
PCU
Analog
detection
detection
PCSFM1_
LD
LD
Toner cooling fan 1 lock
detection
detection
Detects the toner cooling fan 1
lock.
lock.
–
Lock
detection
CN14
15
PCU
PCSFM1_
V#
V#
Toner cooling fan 1
Cools the toner bottle.
OFF
ON
CN14
1
PCU
PCSFM2_
LD
LD
Toner cooling fan 2 lock
detection
detection
Detects the toner cooling fan 2
lock.
lock.
–
Lock
detection
CN14
17
PCU
PCSFM2_
V#
V#
Toner cooling fan 2
Cools the toner bottle.
OFF
ON
CN14
3
PCU
PCSS
Process control shutter
solenoid
[Electromagnetic solenoid]
solenoid
[Electromagnetic solenoid]
Controls ON/OFF of the process
control and the registration
sensor shutter.
control and the registration
sensor shutter.
Open
Close
CN6
11
PCU
PFM
Transport motor
[Stepping motor]
[Stepping motor]
Transports the registration roller
and the horizontal transport
motor drive system.
and the horizontal transport
motor drive system.
–
–
CN8
20,22,
24,26
24,26
PCU
Drives with the
4-phase signal.
4-phase signal.
PFM_CNT
Transport motor current select
Selects the transport motor
current.
current.
Large
current
Small
current
CN8
18
PCU
POD1
Fusing rear detection
[Transmission type]
[Transmission type]
Detects the paper exit from
fusing.
fusing.
–
Pass
CN13
29
PCU
POD2
Paper exit detection
[Transmission type]
[Transmission type]
Detects the discharged paper.
Pass
–
CN13
27
PCU
POD3
Right tray paper exit detection
Detects paper exit to the right
tray.
tray.
Pass
–
CN7
17
PCU
POFM_
CNT
CNT
Paper exit cooling fan motor
speed control
speed control
Controls the speed of the paper
exit cooling fan motor.
exit cooling fan motor.
–
–
CN13
21
PCU
Pulse (Duty)
drive
drive
POFM_
LD1
LD1
POFM lock detection
Detects the POFM lock.
–
Lock
detection
CN13
22
PCU
Signal
name
Name [Type]
Function/Operation
Connector level
Connector
No.
Pin
No.
No.
PWB
name
NOTE
"L"
"H"
MX-4101N ELECTRICAL SECTION 10 – 40
POFM_
LD2
LD2
POFM lock detection
Detects the POFM lock.
–
Lock
detection
CN13
23
PCU
POFM_V
Paper exit cooling fan motor
Cools the fusing unit.
Stop
Drive
CN13
20
PCU
POM
Paper exit drive motor
[Stepping motor]
[Stepping motor]
Drives the paper exit roller.
–
–
CN8
13,15,
17,19
17,19
PCU
Drives with the
4-phase signal.
4-phase signal.
POM_
CNT
CNT
Paper exit drive motor current
select
select
Selects the paper exit drive
motor current.
motor current.
Large
current
Small
current
CN8
11
PCU
PPD1
Registration front detection
[Transmission type]
[Transmission type]
Detects paper in front of the
registration roller.
registration roller.
Pass
–
CN6
12
PCU
PPD2
Registration detection
Detects paper at the rear of the
registration roller.
registration roller.
Pass
–
CN6
18
PCU
PRM
Fusing pressure release motor
[Stepping motor]
[Stepping motor]
Changes the fusing pressure.
–
–
CN14
20,22,
24,26
24,26
PCU
Drives with the
4-phase signal.
4-phase signal.
PSFM_LD
Power cooling fan motor 1 lock
detection
detection
Detects the power cooling fan
motor 1 lock.
motor 1 lock.
–
Lock
detection
CN5
13
PCU
PSFM_V
Power cooling fan motor 1
Cools the power unit.
Stop
Drive
CN5
11
PCU
PSFM_V2
Power cooling fan motor 2
Cools the power unit.
Stop
Drive
CN5
21
PCU
PSFM2_
LD
LD
Power cooling fan motor 2 lock
detection
detection
Detects the power cooling fan
motor 2 lock.
motor 2 lock.
–
Lock
detection
CN5
22
PCU
PTC_ERR
PTC high voltage error
detection
detection
Detects the output abnormality
of the PTC high voltage.
of the PTC high voltage.
Error
detection
–
CN15
7
PCU
PTC_
HEAT
HEAT
PTC heater
Turns ON/OFF of the PTC
heater.
heater.
OFF
ON
CN16
22
PCU
PWM
MFP cooling fan
Cools the controller.
OFF
ON (PWM
control)
CN19
82
MFPC
PWRSW
Operation panel power switch
[Push switch]
[Push switch]
Outputs the ON/OFF control
signal of the DC power.
signal of the DC power.
ON
OFF
CN12
8
MOTHER
RCFM_LD
Machine rear section cooling
fan motor lock detection
fan motor lock detection
Detects the cooling fan motor
lock in the machine rear section.
lock in the machine rear section.
–
Lock
detection
CN14
23
PCU
RCFM_V
Machine rear section cooling
fan motor
fan motor
Cools the machine rear section.
Stop
Drive
CN14
25
PCU
REGS_F
Registrations sensor (Front)
[Reflection type]
[Reflection type]
Detects registration shift.
–
–
CN6
5
PCU
Analog
detection
detection
REGS_F_
LED
LED
Registration sensor LED
(Front) [LED]
(Front) [LED]
Registration sensor LED light
emitting.
emitting.
–
–
CN6
7
PCU
Analog output
REGS_R
Registration sensor (Rear)
[Reflection type]
[Reflection type]
Detects registration shift.
–
–
CN6
6
PCU
Analog
detection
detection
REGS_R_
LED
LED
Registrations sensor LED
(Rear) [LED]
(Rear) [LED]
Registration sensor LED light
emitting
emitting
–
–
CN6
8
PCU
Analog output
RRM
Registration motor
[Stepping motor]
[Stepping motor]
Drives and turns ON the
registration roller.
registration roller.
–
–
CN8
14,16,
23,25
23,25
PCU
Drives with the
4-phase signal.
4-phase signal.
RRM_
CNT
CNT
Registration motor current
select
select
Selects the registration motor
current.
current.
Large
current
Small
current
CN8
21
PCU
TCS_C
Toner density sensor
[Magnetic sensor]
[Magnetic sensor]
Detects the toner density (C).
–
–
CN10
27
PCU
Analog
detection
detection
TCS_K
Toner density sensor
[Magnetic sensor]
[Magnetic sensor]
Detects the toner density (K).
–
–
CN10
7
PCU
Analog
detection
detection
TCS_M
Toner density sensor
[Magnetic sensor]
[Magnetic sensor]
Detects the toner density (M).
–
–
CN10
8
PCU
Analog
detection
detection
TCS_Y
Toner density sensor
[Magnetic sensor]
[Magnetic sensor]
Detects the toner density (Y).
–
–
CN10
28
PCU
Analog
detection
detection
TFD2
Paper exit full detection
[Transmission type]
[Transmission type]
Detects the face-down paper exit
tray full.
tray full.
Full
–
CN13
26
PCU
TFD3
Right tray paper exit full
detection
detection
Detects the paper exit full in the
right tray.
right tray.
Full
–
CN2
1
RD I/F
TH_EX1_
IN
IN
External thermistor 1
External thermistor 1
–
–
CN13
10
PCU
Analog
detection
detection
TH_EX2_
IN
IN
External thermistor 2
External thermistor 2
–
–
CN13
5
PCU
Analog
detection
detection
TH_LM_
IN
IN
Lower main thermistor
Detects the temperature.
–
–
CN13
9
PCU
Analog
detection
detection
TH_M
Temperature detection
Detects the temperature.
–
–
CN7
19
PCU
Analog
detection
detection
TH_UM_
IN
IN
Upper main thermistor
Detects the temperature.
–
–
CN13
8
PCU
Analog
detection
detection
TH_
UMCS_IN
UMCS_IN
Upper main thermistor
Detects the temperature.
–
–
CN13
1
PCU
Analog
detection
detection
TH_US_
IN
IN
Upper sub thermistor
Detects the temperature.
–
–
CN13
4
PCU
Analog
detection
detection
TH1_LSU
LSU unit thermistor
Detects the temperature.
–
–
CN19
5
PCU
Analog
detection
detection
TNM_C
Toner motor C
[Stepping motor]
[Stepping motor]
Transports toner from the toner
cartridge to the developing unit.
cartridge to the developing unit.
–
–
CN15
24,26,
28,30
28,30
PCU
Drives with the
4-phase signal.
4-phase signal.
Signal
name
Name [Type]
Function/Operation
Connector level
Connector
No.
Pin
No.
No.
PWB
name
NOTE
"L"
"H"
Click on the first or last page to see other MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man18) service manuals if exist.