Sharp MX-M905 (serv.man2) Service Manual ▷ View online
MX-M905 EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 9
F. Switches
Signal name
Name
Type
Function / Operation
DHSW
Dehumidifying heater switch
Seesaw switch
Turns ON/OFF the power of the dehumidifying heater.
DSW-F
Front door switch
Micro switch
Detects open/close of the front door.
MSW
Main switch
Rocker switch
Turns ON/OFF the power of the machine.
MSW
DSW-F
DHSW
MX-M905 EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 10
G. Clutches and solenoids
Signal name
Name
Type
Function / Operation
ADUCS
Duplex select gate solenoid
Electromagnetic solenoid
Select gate solenoid for transport in the ADU section
T1PFC
Cassette 1 paper transport clutch
Electromagnetic clutch
Controls ON/OFF of the paper feed roller in the Tray 1 paper feed
section.
section.
T1PTC
Horizontal transport clutch
Electromagnetic clutch
Controls ON/OFF of the transport roller.
T1PUS
Cassette 1 paper pickup solenoid
Electromagnetic solenoid
Paper pickup solenoid (Tray 1)
T2PFC
Cassette 2 paper transport clutch
Electromagnetic clutch
Controls ON/OFF of the paper feed roller in the Tray 2 paper feed
section.
section.
T2PUS
Cassette 2 paper pickup solenoid
Electromagnetic solenoid
Paper pickup solenoid (Tray 2)
C3PFC
Cassette 3 paper transport clutch
Electromagnetic clutch
Controls ON/OFF of the paper feed roller in the Tray 3 paper feed
section.
section.
C3PUS
Cassette 3 paper pickup solenoid
Electromagnetic solenoid
Paper pickup solenoid (Tray 3)
C4PFC
Cassette 4 paper transport clutch
Electromagnetic clutch
Controls ON/OFF of the paper feed roller in the Tray 4 paper feed
section.
section.
C4PUS
Cassette 4 paper pickup solenoid
Electromagnetic solenoid
Paper pickup solenoid (Tray 4)
FRS
Lower pawl separation solenoid
Electromagnetic solenoid
Controls the lower pawl separation solenoid.
LCCPTC
LCC transport clutch
Electromagnetic clutch
Controls ON/OFF of the transport roller.
MPFTC
Manual transport clutch
Electromagnetic clutch
Controls ON/OFF of the transport roller.
POCS
Face-up/face-down select gate solenoid
Electromagnetic solenoid
Face-up/face-down select gate solenoid
PSPS
Separation solenoid
Electromagnetic solenoid
Drives the separation pawl of the OPC drum.
TURS
Transfer separation solenoid
Electromagnetic solenoid
Controls of the transport roller separation.
VPTC1
Vertical transport clutch (Lower)
Electromagnetic clutch
Controls ON/OFF of the vertical transport roller.
VPTC2
Vertical transport clutch (Intermediate)
Electromagnetic clutch
Controls ON/OFF of the vertical transport roller.
VPTC3
Vertical transport clutch (Upper)
Electromagnetic clutch
Controls ON/OFF of the vertical transport roller.
POCS
PSPS
C3PUS
LCCPTC
MPFTC
C4PUS
VPTC3
ADUCS
FRS
VPTC2
T2PUS
T1PFC
T1PUS
T2PFC
C3PFC
C4PFC
T1PTC
VPTC1
TURS
MX-M905 EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 11
H. Drive motors
Signal name
Name
Type
Function / Operation
ADM1
ADU transport motor 1
Stepping motor
Drives the ADU transport roller 1.
ADM2
ADU transport motor 2
Stepping motor
Drives the ADU transport roller 2 .
ASRM
ADU reverse motor
Stepping motor
Drives the ADU reverse roller.
BOTM
Toner cartridge motor
DC brush motor
Transports toner.
C1LUM
Paper lift up motor (Tray 1)
DC brush motor
Drives the paper tray lift. (This is the same as the T1LUM in
the circuit diagram.)
the circuit diagram.)
C2LUM
Paper lift up motor (Tray 2)
DC brush motor
Drives the paper tray lift. (This is the same as the T2LUM in
the circuit diagram.)
the circuit diagram.)
C3LUM
Paper lift up motor (Tray 3)
DC brush motor
Drives the paper tray lift.
C4LUM
Paper lift up motor (Tray 4)
DC brush motor
Drives the paper tray lift.
DCLM
Decurler motor
DC brushless motor
Drives the decurler roller.
DM
Drum motor
DC brushless motor
Drives the drum.
DVM
Developing motor
DC brushless motor
Drives the developing roller.
FUM
Fusing motor
DC brushless motor
Drives the fusing roller.
FURM
Fusing rear motor
Stepping motor
Drives the fusing rear roller.
MCCM
Main charger cleaning motor
DC brush motor
Cleans the main charger.
MIM
Scanner motor
Stepping motor
Drives the copy lamp unit.
MM1
Paper feed motor 1
DC brushless motor
Drives the paper feed section 1.
MM2
Paper feed motor 2
DC brushless motor
Drives the paper feed section 2.
POM
Paper exit motor
Stepping motor
Drives the paper exit roller.
PSM
PS motor
Stepping motor
Drive the PS roller.
SBRM
Paper exit reverse motor
Stepping motor
Drives the paper exit reverse roller.
SLUM
DSPF lift-up motor
PM stepping motor
Lifts up and move down the document tray.
SPFM
DSPF transport motor
Stepping motor
Drives the transport roller.
SPOM
DSPF paper exit motor
Stepping motor
Drives the paper exit roller.
SPSM
DSPF PS motor
Stepping motor
Drives the PS roller.
SPUM
DSPF paper feed motor
Stepping motor
Drives the paper feed roller.
SRFM
DSPF scan transport motor
Stepping motor
Drives the scan transport roller.
SRRM
DSPF PS motor
Stepping motor
Drive the PS roller.
TM1
Toner motor 1
Stepping motor
Transports toner.
TM2
Toner motor 2
Stepping motor
Transports toner.
TRM
Transport motor
Stepping motor
Drives the transport roller.
VPM
Vertical transport motor
Stepping motor
Drives the vertical transport roller.
WEBM
Web motor
Synchronous motor
Drives the fusing roller cleaning.
DCLM
DM
FUM
DVM
WEBM
TM2
ADM2
TM1
MCCM
C2LUM
VPM
PSM
BOTM
TRM
ASRM
POM
ADM1
SBRM
SRFM
SRRM
SPSM
MM2
FURM
MM1
C3LUM
C4LUM
C1LUM
MIM
SPFM
SPUM
SPOM
SLUM
SPOM
SLUM
MX-M905 EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 12
I.
Lamps
Signal name
Name
Type
Function / Operation
Note
CLI
Scanner lamp
LED
Radiates lights onto a document for the CCD to
scan the document image.
scan the document image.
DL1
Discharge lamp
Fuse lamp
Discharging the OPC drum.
DSPF COPY LAMP
DSPF copy lamp
LED
Radiates lights onto a document for the CCD to
scan the document image.
scan the document image.
HL1, HL2, HL4
Upper heater lamp
Halogen lamp
Heats the upper heat roller.
"HL4": Europe, other
desitnations.
desitnations.
PTDL1
Transfer section front discharge lamp
LED
Discharges the OPC drum surface of the transfer
section front.
section front.
DSPF COPY LAMP
CLI
DL1
HL1, HL2, HL4
PTDL1
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