Sharp MX-C380P / MX-C400P / MX-B380P / MX-B382P / MX-B400P (serv.man6) Service Manual ▷ View online
MX-C400P/C380P, MX-B400P/B380P/B382P EXTERNAL VIEW AND INTERNAL STRUCTURE 3 – 6
5. Sensors and detectors
A. MX-C400P/C380P
Signal name
Name
Type
Function/Operation
Note
1TUD_CL
Transfer belt separation detector CL
Transmission type
Detects position of the transfer belt.
Detects initialization of the primary transfer unit.
Detects initialization of the primary transfer unit.
High voltage PWB
holder unit
holder unit
1TUD_K
Transfer belt separation detector BK
Transmission type
Detects position of the transfer belt.
Detects initialization of the primary transfer unit.
Detects initialization of the primary transfer unit.
Frame unit
APPD1
ADU transport path detector 1
Transmission type
Detects paper pass in the upper stream of the
switchback section.
switchback section.
Right door unit
APPD2
ADU transport path detector 2
Transmission type
Detects paper pass in the middle stream of the
switchback section.
switchback section.
Right door unit
CLUD1
Tray 1 upper limit detector
Transmission type
Detects that the top surface of the paper stored in the
tray 1 is lifted to the top.
tray 1 is lifted to the top.
Paper feed unit
CPED1
Tray 1 paper empty detector
Transmission type
Detects that paper is stored in the tray 1.
Paper feed unit
CPFD1
Paper transport detector 1
Reflection type
Detects paper when passes the transport roller 1.
Paper feed unit
CSPD1
Tray 1 paper remaining quantity
detector
detector
Transmission type
Detects the paper remaining quantity in the tray 1.
Lift-up unit
DHPD_CL
Drum cartridge (CL) rotation detector
Transmission type
Detects the rotating state of the color drum cartridge.
Main drive unit
DHPD_K
Drum cartridge (BK) rotation detector
Transmission type
Detects the rotating state of the black drum cartridge.
Main drive unit
HLPCD
Fusing roller pressure release detector
Transmission type
Detects separation of the upper and the lower heat
rollers.
rollers.
Fusing unit
MPED
Manual feed paper empty detector
Transmission type
Detects paper empty in the manual paper feed tray.
Manual paper feed unit
MPLD1
Manual feed paper length detector 1
Transmission type
Detects the length of paper in the manual paper feed
tray.
tray.
Manual paper feed unit
MPWS
Manual paper feed tray paper width
sensor
sensor
Volume resistor
Detects the width of the paper guide in the manual
paper feed tray.
paper feed tray.
Manual paper feed unit
POD1
Fusing rear detector
Transmission type
Detects paper exit from the fusing section.
Sensor:
Frame fusing unit
Actuator:
Frame rear PG unit
POD2
Paper exit detector
Transmission type
Detects paper which is discharged.
Paper exit lower PG unit
PPD1
Paper transport detector 2
Transmission type
Detects paper when passes the transport roller 2.
Paper feed unit
PPD2
Paper transport detector 3
Reflection type
Detects paper in front of the registration roller.
Frame unit
REGS_F
Registration sensor
Reflection type
Detects registration shift.
Registration unit
REGS_R
RTH_EX1
RTH_EX1
External heat roller contact thermistor 1
Thermistor
Detects the temperature of the external heat roller.
Fusing unit
RTH_EX2
External heat roller contact thermistor 2
Thermistor
RTH_Low
Lower heat roller contact thermistor
Thermistor
Detects the temperature of the lower heat roller.
Fusing unit
RTH_Main
Upper heat roller non-contact
thermistor
thermistor
Non-contact
thermistor
thermistor
Detects the temperature of the upper heat roller.
Fusing unit
RTH_Sub
Upper heat roller contact thermistor
Thermistor
TCS_C
Toner density sensor
Magnetic sensor
Detects the toner density in the developing cartridge.
(C)
(C)
Developing cartridge
TFD2
TCS_Y
TCS_M
TCS_C
TCS_K
PPD2
APPD2
CPED1
CSPD1
CLUD1
MPED
MPLD1
MPWS
TH/HUD
CPFD1
PPD1
POD2
POD1
APPD1
HLPCD
RTH_EX1
RTH_EX2
RTH_Sub
RTH_Low
RTH_Main
REGS_F
1TUD_K
1TUD_CL
DHPD_CL
DHPD_K
REGS_R
MX-C400P/C380P, MX-B400P/B380P/B382P EXTERNAL VIEW AND INTERNAL STRUCTURE 3 – 7
B. MX-B400P/B380P
TCS_K
Toner density sensor
Magnetic sensor
Detects the toner density in the developing cartridge.
(K)
(K)
Developing cartridge
TCS_M
Toner density sensor
Magnetic sensor
Detects the toner density in the developing cartridge.
(M)
(M)
Developing cartridge
TCS_Y
Toner density sensor
Magnetic sensor
Detects the toner density in the developing cartridge.
(Y)
(Y)
Developing cartridge
TFD2
Paper exit tray full detector
Transmission type
Detects the full state of the paper exit tray.
Paper exit upper PG unit
TH/HUD
Temperature humidity sensor
Temperature
humidity sensor
humidity sensor
Detects the temperature and the humidity around the
machine.
machine.
Right door unit
Signal name
Name
Type
Function/Operation
Note
1TUD_CL
Transfer belt separation detector CL
Transmission type
Detects position of the transfer belt.
High voltage PWB
holder unit
holder unit
1TUD_K
Transfer belt separation detector BK
Transmission type
Detects initialization of the primary transfer unit.
Frame unit
APPD1
ADU transport path detector 1
Transmission type
Detects paper pass in the upper stream of the
switchback section.
switchback section.
Right door unit
APPD2
ADU transport path detector 2
Transmission type
Detects paper pass in the middle stream of the
switchback section.
switchback section.
Right door unit
CLUD1
Tray 1 upper limit detector
Transmission type
Detects that the top surface of the paper stored in the
tray 1 is lifted to the top.
tray 1 is lifted to the top.
Paper feed unit
CPED1
Tray 1 paper empty detector
Transmission type
Detects that paper is stored in the tray 1.
Paper feed unit
CPFD1
Paper transport detector 1
Reflection type
Detects paper when passes the transport roller 1.
Paper feed unit
CSPD1
Tray 1 paper remaining quantity
detector
detector
Transmission type
Detects the paper remaining quantity in the tray 1.
Lift-up unit
HLPCD
Fusing roller pressure release detector
Transmission type
Detects separation of the upper and the lower heat
rollers.
rollers.
Fusing unit
MPED
Manual feed paper empty detector
Transmission type
Detects paper empty in the manual paper feed tray.
Manual paper feed unit
MPLD1
Manual feed paper length detector 1
Transmission type
Detects the length of paper in the manual paper feed
tray.
tray.
Manual paper feed unit
MPWS
Manual paper feed tray paper width
sensor
sensor
Volume resistor
Detects the width of the paper guide in the manual
paper feed tray.
paper feed tray.
Manual paper feed unit
POD1
Fusing rear detector
Transmission type
Detects paper exit from the fusing section.
Sensor:
Frame fusing unit
Actuator:
Frame rear PG unit
POD2
Paper exit detector
Transmission type
Detects paper which is discharged.
Paper exit lower PG unit
PPD1
Paper transport detector 2
Transmission type
Detects paper when passes the transport roller 2.
Paper feed unit
PPD2
Paper transport detector 3
Reflection type
Detects paper in front of the registration roller.
Frame unit
REGS_R
Registration sensor
Reflection type
Detects the toner patch density. Detects open/close of
the reference reflection plate, the secondary transfer
roller transfer position, and the non-transfer position.
the reference reflection plate, the secondary transfer
roller transfer position, and the non-transfer position.
Registration unit
Signal name
Name
Type
Function/Operation
Note
TFD2
TCS_K
PPD2
APPD2
CPED1
CSPD1
CLUD1
MPED
MPLD1
MPWS
TH/HUD
CPFD1
PPD1
POD2
POD1
APPD1
HLPCD
RTH_EX1
RTH_EX2
RTH_Sub
RTH_Low
RTH_Main
1TUD_K
1TUD_CL
REGS_R
MX-C400P/C380P, MX-B400P/B380P/B382P EXTERNAL VIEW AND INTERNAL STRUCTURE 3 – 8
C. MX-B382P
RTH_EX1
External heat roller contact thermistor 1
Thermistor
Detects the temperature of the external heat roller.
Fusing unit
RTH_EX2
External heat roller contact thermistor 2
Thermistor
RTH_Low
Lower heat roller contact thermistor
Thermistor
Detects the temperature of the lower heat roller.
Fusing unit
RTH_Main
Upper heat roller non-contact
thermistor
thermistor
Non-contact
thermistor
thermistor
Detects the temperature of the upper heat roller.
Fusing unit
RTH_Sub
Upper heat roller contact thermistor
Thermistor
TCS_K
Toner density sensor
Magnetic sensor
Detects the toner density in the developing cartridge.
Developing cartridge
TFD2
Paper exit tray full detector
Transmission type
Detects the full state of the paper exit tray.
Paper exit upper PG unit
TH/HUD
Temperature humidity sensor
Temperature
humidity sensor
humidity sensor
Detects the temperature and the humidity around the
machine.
machine.
Right door unit
Signal name
Name
Type
Function/Operation
Note
1TUD_CL
Transfer belt separation detector CL
Transmission type
Detects separation of the transfer belt.
High voltage PWB
holder unit
holder unit
1TUD_K
Transfer belt separation detector BK
Transmission type
Detects initialization of the primary transfer unit.
Frame unit
APPD1
ADU transport path detector 1
Transmission type
Detects paper pass in the upper stream of the
switchback section.
switchback section.
Right door unit
APPD2
ADU transport path detector 2
Transmission type
Detects paper pass in the middle stream of the
switchback section.
switchback section.
Right door unit
CLUD1
Tray 1 upper limit detector
Transmission type
Detects that the top surface of the paper stored in the
tray 1 is lifted to the top.
tray 1 is lifted to the top.
Paper feed unit
CPED1
Tray 1 paper empty detector
Transmission type
Detects that paper is stored in the tray 1.
Paper feed unit
CPFD1
Paper transport detector 1
Reflection type
Detects paper when passes the transport roller 1.
Paper feed unit
CSPD1
Tray 1 paper remaining quantity
detector
detector
Transmission type
Detects the paper remaining quantity in the tray 1.
Lift-up unit
MPED
Manual feed paper empty detector
Transmission type
Detects paper empty in the manual paper feed tray.
Manual paper feed unit
MPLD1
Manual feed paper length detector 1
Transmission type
Detects the length of paper in the manual paper feed
tray.
tray.
Manual paper feed unit
MPWS
Manual paper feed tray paper width
sensor
sensor
Volume resistor
Detects the width of the paper guide in the manual
paper feed tray.
paper feed tray.
Manual paper feed unit
POD1
Fusing rear detector
Transmission type
Detects paper exit from the fusing section.
Sensor:
Frame fusing unit
Actuator:
Frame rear PG unit
POD2
Paper exit detector
Transmission type
Detects paper which is discharged.
Paper exit lower PG unit
PPD1
Paper transport detector 2
Transmission type
Detects paper when passes the transport roller 2.
Paper feed unit
PPD2
Paper transport detector 3
Reflection type
Detects paper in front of the registration roller.
Frame unit
REGS_R
Registration sensor
Reflection type
Detects the toner patch density. Detects open/close of
the reference reflection plate, the secondary transfer
roller transfer position, and the non-transfer position.
the reference reflection plate, the secondary transfer
roller transfer position, and the non-transfer position.
Registration unit
Signal name
Name
Type
Function/Operation
Note
1
TFD2
TCS_K
PPD2
APPD2
CPED1
CSPD1
CLUD1
MPED
MPLD1
MPWS
TH/HUD
CPFD1
PPD1
POD2
POD1
APPD1
1TUD_K
1TUD_CL
REGS_R
RTH_Sub
RTH_Main
: ’11/Mar/15
1
MX-C400P/C380P, MX-B400P/B380P/B382P EXTERNAL VIEW AND INTERNAL STRUCTURE 3 – 9
6. Switches
A. MX-C400P/C380P
RTH_Main
Upper heat roller non-contact
thermistor
thermistor
Non-contact
thermistor
thermistor
Detects the temperature of the upper heat roller.
Fusing unit
RTH_Sub
Upper heat roller contact thermistor
Thermistor
TCS_K
Toner density sensor
Magnetic sensor
Detects the toner density in the developing cartridge.
Developing cartridge
TFD2
Paper exit tray full detector
Transmission type
Detects the full state of the paper exit tray.
Paper exit upper PG unit
TH/HUD
Temperature humidity sensor
Temperature
humidity sensor
humidity sensor
Detects the temperature and the humidity around the
machine.
machine.
Right door unit
Signal name
Name
Type
Function/Operation
1TNFD
Waste toner full detection switch
Micro switch
Detects the waste toner full.
DRCRU_C
OPC drum initial (new OPC drum) detector (C)
Micro switch
Detects the OPC drum initial state (new OPC drum).
DRCRU_K
OPC drum initial (new OPC drum) detector (BK)
Micro switch
Detects the OPC drum initial state (new OPC drum).
DRCRU_M
OPC drum initial (new OPC drum) detector (M)
Micro switch
Detects the OPC drum initial state (new OPC drum).
DRCRU_Y
OPC drum initial (new OPC drum) detector (Y)
Micro switch
Detects the OPC drum initial state (new OPC drum).
DSW-F
Front door open/close switch
Micro switch
Detects open/close of the front door, and turns ON/OFF the power line of
the fusing, the motor and the LSU laser.
the fusing, the motor and the LSU laser.
DSW-R
Right door open/close switch
Micro switch
Detects open/close of the right door unit, and turns ON/OFF the power
line of the fusing, the motor and the LSU laser.
line of the fusing, the motor and the LSU laser.
MSW
Main switch
Seesaw switch
Turns ON/OFF the main DC power source.
PWRSW
Operation panel power switch
Push switch
Outputs the ON/OFF control signal of the DC power source.
Signal name
Name
Type
Function/Operation
Note
1
DSW-F
DRCRU_Y
DRCRU_M
DRCRU_C
DRCRU_K
1TNFD
DSW-R
PWRSW
MSW
: ’11/Mar/15
1
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