Sharp MX-6240N / MX-7040N (serv.man17) Service Manual ▷ View online
MX-7040N EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 11
TFSD_K
Toner remaining quantity sensor (K)
Piezoelectric sensor
Detects the remaining quantity of toner in the toner hopper.
TFSD_M
Toner remaining quantity sensor (M)
Piezoelectric sensor
Detects the remaining quantity of toner in the toner hopper.
TFSD_Y
Toner remaining quantity sensor (Y)
Piezoelectric sensor
Detects the remaining quantity of toner in the toner hopper.
TH_LM1
Fusing temperature sensor 1
(Fusing roller B)
(Fusing roller B)
Non-contact thermistor
Detects the center surface temperature of the fusing roller B.
TH_LM2
Fusing temperature sensor 2
(Fusing roller B)
(Fusing roller B)
Contact-type thermistor
Detects the edge surface temperature of the fusing roller B.
TH_UM
Main fusing temperature sensor
(Fusing belt)
(Fusing belt)
Non-contact thermistor
Detects the center surface temperature of the fusing belt.
TH_US1
Sub fusing temperature sensor
(Fusing belt)
(Fusing belt)
Non-contact thermistor
Detects the edge surface temperature of the fusing belt.
TH_US2
Fusing temperature sensor (Fusing belt)
Contact-type thermistor
Detects the edge surface temperature of the fusing belt.
TH1_LSU
LSU thermistor 1
Thermistor
Detects the temperature in the LSU. (Used for correction of distortion.)
TNDSET
Open/close detector
(Paper feed tray 1, 2)
(Paper feed tray 1, 2)
Light transmission
Detects open/close of the paper feed trays 1 and 2.
WEBEND2
Web end detector 2
Light transmission
Detects web end.
WTBSET
Waste toner bottle detector
Light transmission
Detects installation of the waste toner bottle.
WTFD
Waste toner full detector
Light transmission
Detects full of waste toner.
Signal name
Name
Type
Function/Operation
MX-7040N EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 12
7. Switches
*: Option
Signal name
Name
Type
Function/Operation
DSW_F
Front door open/close switch
Micro switch
Detects open/close of the front door. Opens/closes the power lines of the
fusing section, the motor, and the LSU laser. (DSW_FL)
fusing section, the motor, and the LSU laser. (DSW_FL)
DSW_R
Right door open/close switch
Micro switch
Detects open/close of the right door. Opens/closes the power lines of the
fusing section, the motor, and the LSU laser.
fusing section, the motor, and the LSU laser.
MSW
Main power switch
Seesaw switch
Turns ON/OFF the main power.
PWRSW
Operation panel power switch
Push switch
Turns ON/OFF the power on the secondary side.
WH_SW *
Dehumidifier heater switch
Seesaw switch
Turns ON/OFF the power line of the dehumidifier heater.
WH_SW
PWRSW
MSW
DSW_F
DSW_R
2
MX-7040N EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 13
8. Clutches and solenoids
Signal name
Name
Type
Function/Operation
1TURC
Transfer mode select clutch (Forward rotation)
Electromagnetic clutch
Turns ON/OFF of the transfer mode select cam forward rotation.
1TURRC
Transfer mode select clutch (Reverse rotation)
Electromagnetic clutch
Turns ON/OFF of the transfer mode select cam reverse rotation.
ADUGS
ADU gate solenoid
Electromagnetic solenoid
Selects the paper exit gate (ADU gate).
C3PUC
Paper feed clutch (Paper feed tray 3)
Electromagnetic clutch
Turns ON/OFF the paper feed section roller.
C3PUS
Paper feed solenoid (Paper feed tray 3)
Electromagnetic solenoid
Lifts the paper pickup roller.
C4PUC
Paper feed clutch (Paper feed tray 4)
Electromagnetic clutch
Turns ON/OFF the paper feed section roller.
C4PUS
Paper feed solenoid (Paper feed tray 4)
Electromagnetic solenoid
Lifts the paper pickup roller.
DVC_C
DV clutch (C)
Electromagnetic clutch
Turns ON/OFF the DV unit drive.
DVC_K
DV clutch (K)
Electromagnetic clutch
Turns ON/OFF the DV unit drive.
DVC_M
DV clutch (M)
Electromagnetic clutch
Turns ON/OFF the DV unit drive.
DVC_Y
DV clutch (Y)
Electromagnetic clutch
Turns ON/OFF the DV unit drive.
LCCC
LCC transport clutch
Electromagnetic clutch
Turns ON/OFF the roller in the paper entry section from the LCC
and the transport roller in the manual paper feed section.
and the transport roller in the manual paper feed section.
LSUSS_CL
LSU shutter solenoid
Electromagnetic solenoid
Opens/closes the LSU shutter.
MPFS
Paper pickup solenoid (Manual paper feed)
Electromagnetic solenoid
Lifts the paper pickup roller.
MPGS
Paper feed gate solenoid (Manual paper feed)
Electromagnetic solenoid
Opens/closes the manual paper feed gate.
MPUC
Paper feed clutch (Manual paper feed)
Electromagnetic clutch
Turns ON/OFF the paper feed section roller.
PCSS
Image density sensor shutter solenoid
Electromagnetic solenoid
Opens/closes the shutter for the image density sensor.
PTRC1
Paper vertical transport clutch (Lower)
Electromagnetic clutch
Turns ON/OFF the transport roller in the lower section of the
vertical paper transport section.
vertical paper transport section.
PTRC2
Paper vertical transport clutch (Upper)
Electromagnetic clutch
Turns ON/OFF the transport roller in the upper section of the
vertical paper transport section.
vertical paper transport section.
T1PUC
Paper feed clutch (Paper feed tray 1)
Electromagnetic clutch
Turns ON/OFF the paper feed section roller.
T1PUS
Paper feed solenoid (Paper feed tray 1)
Electromagnetic solenoid
Lifts the paper pickup roller.
T2PUC
Paper feed clutch (Paper feed tray 2)
Electromagnetic clutch
Turns ON/OFF the paper feed section roller.
T2PUS
Paper feed solenoid (Paper feed tray 2)
Electromagnetic solenoid
Lifts the paper pickup roller.
TTRC
Transport clutch (Paper feed tray 1, 2)
Electromagnetic clutch
Turns ON/OFF the transport roller of the paper feed tray 1.
ADUGS
MPGS
MPFS
MPUC
LCCC
PTRC2
C3PUS
C4PUS
C3PUC
PTRC1
C4PUC
T2PUC
T2PUS
PCSS
1TURRC
1TURC
TTRC
DVC_K
T1PUC
T1PUS
LSUSS_CL
DVC_M
DVC_C
DVC_Y
MX-7040N EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 14
9. Drive motors
Signal name
Name
Type
Function/Operation
ADUM1
ADU motor 1
Stepping motor
Drives the ADU and the transport roller in the right paper exit section.
ADUM2
ADU motor 2
Stepping motor
Drives the transport roller in the ADU section.
BTM
Transfer motor
DC brushless motor
Drives the transfer section.
C3LUM
Paper tray lift motor (Paper feed tray 3)
DC brush motor
Lifts the paper feed tray.
C4LUM
Paper tray lift motor (Paper feed tray 4)
DC brush motor
Lifts the paper feed tray.
CCM_C
MC cleaning motor (C)
DC micro motor
Slides the MC cleaner.
CCM_K
MC cleaning motor (K)
DC micro motor
Slides the MC cleaner.
CCM_M
MC cleaning motor (M)
DC micro motor
Slides the MC cleaner.
CCM_Y
MC cleaning motor (Y)
DC micro motor
Slides the MC cleaner.
CPFM
Paper feed motor
DC brushless motor
Drives the paper feed section.
DM_C
Drum motor C
DC brushless motor
Drives the OPC unit and the DV unit.
DM_K
Drum motor K
DC brushless motor
Drives the OPC unit and the DV unit.
DM_M
Drum motor M
DC brushless motor
Drives the OPC unit and the DV unit.
DM_Y
Drum motor Y
DC brushless motor
Drives the OPC unit and the DV unit.
FUM
Fusing motor
DC brushless motor
Drives the fusing section.
LCCM
LCC paper entry motor
Stepping motor
LCC transport motor
MIM
Scanner motor
Stepping motor
Drives the scanner unit. (scan, return operations)
PGM
Polygon motor
DC brushless motor
Drives the LSU polygon mirror.
POM
Paper exit motor
Stepping motor
Drives the roller in the paper exit section.
PRM
Fusing pressure control motor
Stepping motor
Controls ON/OFF of the fusing pressure.
PTCCM
PTC cleaning motor
DC micro motor
Slides the PTC cleaner.
RRM
Registration motor
Stepping motor
Drives the registration roller. (Controls the timing of the transfer image for
the paper.)
the paper.)
T1LUM
Paper tray lift motor (Paper feed tray 1)
DC brush motor
Lifts the paper feed tray.
T2LUM
Paper tray lift motor (Paper feed tray 2)
DC brush motor
Lifts the paper feed tray.
TNHM_C
Tone hopper motor (C)
Stepping motor
Sends toner to the DV unit.
TNHM_K
Tone hopper motor (K)
Stepping motor
Sends toner to the DV unit.
PRM
ADUM1
FUM
WEBM2
ADUM2
WTM
LCCM
C4LUM
C3LUM
T2LUM
CPFM
T1LUM
RRM
PFM
PTCCM
BTM
CCM_K
DM_K
CCM_C
DM_C
CCM_M
DM_M
CCM_Y
DM_Y
TNM_Y
TNHM_Y
TNM_M
TNHM_M
TNM_C
TNHM_C
TNM_K
MIM
PGM
TNHM_K
POM
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