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 – 4
3. I/F connectors
No.
Name
Function/Operation
1
USB connector (A type)
Supports USB 2.0 (Hi-Speed).
This is used to connect a USB device such as USB memory to the machine.
2
USB connector (B type)
Supports USB 2.0 (Hi-Speed).
A computer can be connected to this connector to use the machine as a printer.
For the USB cable, use a shielded cable.
3
LAN connector
Connect the LAN cable to this connector when the machine is used on a network.
For the LAN cable, use a shielded type cable.
4
Service-only connector
This connector is for use only by service technicians.
Connecting a cable to this connector may cause the machine to malfunction.
Important note for service technicians:
The cable connected to the service connector must be less than 3 m (118") in length.
5
Power plug
6
Extension phone socket
When the fax function of the machine is used, an extension phone can be connected to this socket.
7
Telephone line socket
When the fax function of the machine is used, the telephone line is connected to this socket.
7HEN
MX-3640N EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 5
4. Operation panel
No.
Name
Function/Operation
1
Touch panel
Messages and keys appear in the touch panel display.
Touch the displayed keys to perform a variety of operations.
When a key is touched, a beep sounds and the selected item is highlighted. This provides confirmation as you
perform an operation.
2
Main power indicator
This lights up when the machine's main power switch is in the "on" position.
3
[POWER] key (
)
Use this key to turn the machine power on and off.
4
[POWER SAVE] key (
) / indicator Use this key to put the machine into auto power shut-off mode to save energy.
The [POWER SAVE] key (
) blinks when the machine is in auto power shut-off mode.
5
[Home Screen] button
Touch this key to display the home screen.
Frequently used settings can be registered in the home screen to enable quick and easy operation of the
machine.
MX-3640N EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 6
5. Sensors and detectors
Signal name
Name
Type
Function/Operation
Note
1TUD_CL
Transfer mode detector (CL)
Transmission type
Detects separation of the transfer belt and the transfer mode.
(Detection is made by combination of 1TUD_CL/1TUD_K
signals.)
(Detection is made by combination of 1TUD_CL/1TUD_K
signals.)
1TUD_K
Transfer mode detector (BK)
Transmission type
Detects separation of the transfer belt and the transfer mode.
(Detection is made by combination of 1TUD_CL/1TUD_K
signals.)
(Detection is made by combination of 1TUD_CL/1TUD_K
signals.)
2TUD
Secondary transfer position
detector
detector
Transmission type
Detects the position (separation) of the secondary transfer
unit.
unit.
APPD1
ADU paper transport detector 1
Transmission type
Detects paper entry and paper pass in the ADU.
APPD2
ADU paper transport detector 2
Transmission type
Detects paper pass in the ADU transport roller 8.
BD
Laser beam detector
Pin diode
Detects laser beams (monitor.)
CLUD1
Paper feed tray upper limit
sensor (Paper feed tray 1)
sensor (Paper feed tray 1)
Transmission type
Detects the upper limit of the paper lift up.
(Paper feed tray 1)
(Paper feed tray 1)
CPED1
Paper empty sensor
(Paper feed tray 1)
(Paper feed tray 1)
Transmission type
Detects paper empty. (Paper feed tray 1)
CPFD1
Paper transport detector
(Paper feed tray 1)
(Paper feed tray 1)
Transmission type
Detects paper pass in the paper transport section of the paper
feed tray 1.
feed tray 1.
CSPD1
Paper remaining quantity sensor
(Paper feed tray 1)
(Paper feed tray 1)
Transmission type
Detects the paper remaining quantity. (Paper feed tray 1)
CSS11
Paper feed tray size detector
(Paper feed tray 1)
(Paper feed tray 1)
Tact switch
Detects closing of the paper feed tray. (Paper feed tray 1)
30%$
3073
3/#$
-(03
/#37
4&$
4&$
0/$
00$
00$
"$
#30$
$37?#
#0&$
#,5$
#0%$
#33
!00$
!00$
0/$
0/$
0240$
$37?!$5
4(?,-?).
4(?53?).
4(?5-?).
45$?#,
4#3?9
4#3?-
4(?,35
4#3?#
4#3?+
$(0$?#, $(0$?+
45$
4.&$
-0%$
-0,$
-073
(5$?-4(?-
45$?+
2%'3?&)-'$3
2%'3?2
(,0#$
3#/6
300$
300$
300$
300$
30,3
30,3
(0/3
7%"%.$
#33
#33
#33
#33
#33
#33
#33
MX-3640N EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 7
CSS11 - 14
Paper feed tray size detector
(Paper feed tray 1)
Tact switch
Detects the paper size.
Detects closing of the paper feed tray. (Paper feed tray 1)
36cpm machine
only
DHPD_CL
OPC drum rotation sensor (CL)
Transmission type
Detects rotation and the phase of the OPC drum (CL).
DHPD_K
OPC drum rotation sensor (BK)
Transmission type
Detects rotation and the phase of the OPC drum (BK).
DSW_ADU
ADU paper guide open/close
detector
Transmission type
Detects open/close of the ADU paper guide.
DSW_C1
Transport cover open/close
detector (Paper feed tray 1)
Transmission type
Detects open/close of the transport section cover. (Paper
feed tray 1)
HLPCD
Fusing pressure detector
Transmission type
Detects the fusing pressure state.
HPOS (SHPOS)
Shifter home positions sensor
Transmission type
Detects the shifter home position.
HUD_M/TH_M
Temperature/humidity sensor
Thermistor
Detects the temperature and the humidity. (For the process
control)
Analog
detection
MHPS
Scanner home position sensor
Transmission type
Detects the scanner home position.
MPED
Paper empty sensor
(Manual paper feed tray)
Transmission type
Detects presence of paper. (Manual paper feed tray)
MPLD
Paper length detector
(Manual paper feed tray)
Transmission type
Detects the paper length. (Manual paper feed tray)
MPWS
Paper width detector
(Manual paper feed tray)
Volume-type resistor
Detects the paper width. (Manual paper feed tray)
OCSW
Paper size detection trigger
sensor
Transmission type
Detects generation of the paper size detection trigger signal.
POD1
Paper exit detector 1
Transmission type
Detects paper transport from the fusing section.
POD2
Paper exit detector 2
Transmission type
Detects paper transport to the face-down paper exit tray.
POD3
Paper exit detector 3
Transmission type
Detects paper transport to the right paper exit tray.
PPD1
Paper transport detector 1
Transmission type
Detects paper pass in front of the transport roller 5.
PPD2
Paper transport detector 2
Reflection type
Detects paper pass in the transport roller 5 in front of the
registration roller.
PRTPD
Paper exit tray paper detector
(Right paper exit tray)
Transmission type
Detects paper empty in the paper exit tray (Right paper exit
tray).
REGS_F/IMGDS Registration sensor F
(Image density sensor)
Reflection type
Detects color shift. (F side) / Detects the toner patch density.
REGS_R
Registration sensor R
(Image density sensor)
Reflection type
Detects the toner patch density.
SCOV
RSPF cover open/close detector
Micro switch
Detects open/close of the RSPF cover.
SOCD
RSPF open/close sensor
Transmission type
Detects open/close of the RSPF unit.
SPED
Document sensor
Transmission type
Detects document empty in the RSPF paper feed tray.
SPLS1
Paper size detector 1
Transmission type
Detects the document length in the RSPF paper feed tray.
SPLS2
Paper size detector 2
Transmission type
Detects the document length in the RSPF paper feed tray.
SPPD1
Document transport sensor 1
Transmission type
Detects paper feed and the document size in random paper
feed.
SPPD2
Document transport sensor 2
Transmission type
Detects paper pass.
SPPD3
Document transport sensor 3
Transmission type
Detects paper pass.
SPPD4
Document transport sensor 4
Transmission type
Detects paper exit and switchback.
SPWS
Document size detector
Volume-type resistor
Detects the document width.
TCS_C
Toner sensor (C)
Magnetic sensor
Detects toner supply from the toner cartridge.
Detects the toner density (C).
Analog
detection
TCS_K
Toner sensor (K)
Magnetic sensor
Detects toner supply from the toner cartridge.
Detects the toner density (K).
Analog
detection
TCS_M
Toner sensor (M)
Magnetic sensor
Detects toner supply from the toner cartridge.
Detects the toner density (M).
Analog
detection
TCS_Y
Toner sensor (Y)
Magnetic sensor
Detects toner supply from the toner cartridge.
Detects the toner density (Y).
Analog
detection
TFD2
Paper exit tray full detector
(Center paper exit tray)
Transmission type
Detects paper full in the center paper exit tray.
TFD3
Paper exit tray full detector
(Right paper exit tray)
Transmission type
Detects paper full in the right paper exit tray.
TH_LM_IN
Fusing temperature sensor
Thermistor
Detects the surface temperature of the fusing roller (B).
Analog
detection
TH_UM_IN
Fusing temperature sensor
(Main)
Non-contact thermistor
Detects the surface temperature at the center of the fusing
belt (roller).
Analog
detection
TH_US_IN
Fusing temperature sensor (Sub) Thermistor
Detects the suffered temperature at the edge section of the
fusing belt (roller).
Analog
detection
TH1_LSU
LSU temperature sensor
Thermistor
Detects the temperature in the LSU. (For correction of the
LSU distortion)
Analog
detection
TNFD
Waste toner full detector
Mechanical switch
Detects full of waste toner.
WEBEND
Web end detector
Transmission type
Detects web end of the fusing unit.
Signal name
Name
Type
Function/Operation
Note
Click on the first or last page to see other MX-2640N / MX-2640NR / MX-2640FN / MX-3140N / MX-3140NR / MX-3140FN / MX-3640N / MX-3640NR / MX-3640FN (serv.man36) service manuals if exist.