Sharp MX-2640N / MX-2640NR / MX-2640FN / MX-3140N / MX-3140NR / MX-3140FN / MX-3640N / MX-3640NR / MX-3640FN (serv.man36) Service Manual ▷ View online
MX-3640N EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 8
6. Switches
Signal name
Name
Type
Function/Operation
DHSW
Dehumidifier heater switch
Seesaw switch Turns ON/OFF the power line of the dehumidifier heater.
DSW_F
Front door open/close switch
Micro switch
Detects open/close of the front door. Detects ON/OFF of the power line of the fusing unit,
the motors, and the LSU laser.
DSW_R
Right transport unit (right door)
open/close switch
Micro switch
Detects open/close of the right paper transport section (right door). Detects ON/OFF of the
power line of the fusing unit, the motors, 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.
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MX-3640N EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 9
7. Clutches and solenoids
Signal name
Name
Type
Function/Operation
1TURC_1
Primary transfer separation clutch 1
Magnetic clutch
Controls separation of the primary transfer unit.
1TURC_2
Primary transfer separation clutch 2
Magnetic clutch
Controls separation of the primary transfer unit.
2TURC
Secondary transfer separation clutch
Magnetic clutch
Controls separation of the secondary transfer unit.
CPFC1
Tray vertical transport clutch 1
Magnetic clutch
Controls the transport roller of the paper feed tray 1 section.
CPUC1
Paper feed clutch (Paper feed tray 1)
Magnetic clutch
Controls ON/OFF of the paper feed roller in the paper feed tray 1 section.
(Paper feed tray 1)
MPFS
Paper feed solenoid (Manual paper feed)
Magnetic solenoid Controls the paper feed roller. (Manual paper feed)
PFC_HPFC
Transport roller clutch
Magnetic clutch
Controls the transport roller 4.
SPRS
Paper exit roller pressure control solenoid
(RSPF)
Magnetic solenoid Controls ON/OFF of the transport power of the paper exit roller. (Releases the
paper exit roller pressure when reversing paper.)
SRRC
Registration roller clutch (RSPF)
Magnetic clutch
Controls the registration roller. (Controls the timing of document transport.)
STMPS
Stamp solenoid
Magnetic solenoid Drives the finish stamp.
WEBS
Web drive solenoid
Magnetic solenoid Drives the web.
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MX-3640N EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 10
8. Motors
Signal name
Name
Type
Function/Operation
ADUM
ADU motor
Stepping motor
Drives the ADU and the transport roller in the right paper exit section.
BTM
Transfer belt drive motor
DC brushless motor Drives the transfer belt. (For 36 cpm machine)
CLUM1
Paper tray lift motor (Paper feed tray 1) DC brush motor
Lifts the lift plate of the paper feed tray. (Paper feed tray 1)
CPFM
Paper feed motor
DC brushless motor Drives the paper feed section.
DVM_CL
Developing motor (CL)
DC brushless motor Drives the developing/OPC drum section (CL).
DVM_K
Developing motor (K)
DC brushless motor Drives the developing/black OPC drum (BK)/transfer section.
FUM
Fusing motor
DC brushless motor Drives the fusing section.
MIM
Scan motor
Stepping motor
Drives the scanner unit. (scan, return operations)
OSM*
Offset motor
Stepping motor
Offsets (shifts) paper.
PFM
Transport motor
Stepping motor
Drives the transport rollers 5 and 9.
PGM
Polygon motor
DC brushless motor Scans laser beams.
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 roller pressure.
RRM
Registration motor
Stepping motor
Drives the registration roller.
(Controls the timing of the transfer image for the paper.)
SPFM
RSPF transport motor
Stepping motor
Transports a document.
SPM/SPUM
RSPF paper feed motor
Stepping motor
Feeds a document.
TNM_C
Toner motor (C)
Stepping motor
Supplies toner from the toner cartridge (C) to the developing unit.
TNM_K
Toner motor (K)
Stepping motor
Supplies toner from the toner cartridge (K) to the developing unit.
TNM_M
Toner motor (M)
Stepping motor
Supplies toner from the toner cartridge (M) to the developing unit.
TNM_Y
Toner motor (Y)
Stepping motor
Supplies toner from the toner cartridge (Y) to the developing unit.
ADUM
SPFM
SPM (SPUM)
FUM
MIM
PFM
PGM
POM
RRM
PRM
OSM
DVM_CL
TNM_Y
TNM_M
TNM_C
TNM_K
DVM_K
CPFM
CLUM1
BTM
MX-3640N EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 11
9. Rollers
No.
Name
Function/Operation
1
Transport roller 1 (Idle)
Apply a pressure to paper and the transport roller to provide the transport power of the transport roller to
paper.
2
Transport roller 1 (Drive)
Transports paper fed from the paper feed desk tray to the transport roller 4.
3
Paper pickup roller (No. 1 paper feed tray) Feeds paper to the paper feed roller.
4
Separation roller (No. 1 paper feed tray)
Separates paper to prevent double-feeding.
5
Paper feed roller (No. 1 paper feed tray)
Feeds paper to the paper transport section.
6
Transport roller 2 (Idle)
Apply a pressure to paper and the transport roller to provide the transport power of the transport roller to
paper.
7
Transport roller 2 (Drive)
Transports paper fed from the paper feed tray 1 to the transport roller 3.
8
Transport roller 3
Transports paper from the transport roller 2 to the transport roller 4.
9
Paper feed roller (Manual paper feed tray) Feeds paper to the paper transport section.
10
Separation roller (Manual paper feed tray)
Separates paper to prevent double-feeding.
11
Transport roller 4 (Idle)
Apply a pressure to paper and the transport roller to provide the transport power of the transport roller to
paper.
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