Sharp MX-6500N / MX-7500N (serv.man18) Service Manual ▷ View online
MX-7500N EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 7
4. 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.
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.
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 118"
(3 m) in length.
malfunction. Important note for service technicians: The cable connected to the service connector must be less than 118"
(3 m) in length.
5
Power plug
MX-7500N EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 8
5. Operation panel
NOTE: Fingers and static electricity pen can be used to operate the touch panel and keys on thepanel.
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.
When a key is touched, a beep sounds and the selected item is highlighted. This provides confirmation as you
perform an operation.
2
[HOME Screen] button / indicator
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.
quick and easy operation of the machine.
3
Main power indicator
This lights up when the machine's main power switch is in the "on" position.
4
[POWER] button
Use this key to turn the machine power on and off.
5
[POWER SAVE] button /
indicator
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.
the machine is in auto power shut-off mode.
6
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.
7
Fiery Key
Touch this key to use Fiery Server Function.
MX-7500N EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 9
6. Sensors and detectors
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MX-7500N EXTERNAL VIEW AND INTERNAL STRUCTURE 4 – 10
Signal name
Name
Type
Function/Operation
1TUD_CL
Transfer mode detector (CL)
Light transmission
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)
Light transmission
Detects separation of the transfer belt and the transfer mode.
(1TUD_BK)
(Detection is made by combination of 1TUD_CL/1TUD_K signals.)
(1TUD_BK)
(Detection is made by combination of 1TUD_CL/1TUD_K signals.)
2TBMD_F
2nd transfer belt skew detector F
Detects the edge of 2nd transfer belt F.
2TBMD_HP
2nd transfer belt skew correction motor
home position sensor.
home position sensor.
Detects paper pass in the transport roller 21.
2TBMD_R
2nd transfer belt skew detector R
Detects the edge of 2nd transfer belt R.
APPD1
ADU paper pass detector 1
Light transmission
Detects paper entry in the ADU section.
APPD2
ADU paper pass detector 2
Light transmission
Detects paper pass in the transport roller 21.
BD
Laser beam sensor
Pin diode
Detects laser beams.
C3LUD
Paper upper limit detector
(Paper feed tray 3)
(Paper feed tray 3)
Light transmission
Detects the upper limit lift position of paper in the paper feed tray.
C3PED
Paper empty detector (Paper feed tray 3)
Light transmission
Detects paper.
C3PFD
Paper pass sensor (Paper feed tray 3)
Light reflection
Detects paper pass in the paper transport section of the paper feed tray
3.
3.
C3SPD
Paper remaining quantity detector
(Paper feed tray 3)
(Paper feed tray 3)
Light transmission
Detects the paper remaining quantity.
C3SS1 - 4
Paper size detector (Paper feed tray 4)
Tact switch
Detects the paper size. Detects open/close of the paper feed tray.
C4LUD
Paper upper limit detector
(Paper feed tray 4)
(Paper feed tray 4)
Light transmission
Detects the upper limit lift position of paper in the paper feed tray.
C4PED
Paper empty detector (Paper feed tray 4)
Light transmission
Detects paper.
C4PFD
Paper pass sensor (Paper feed tray 4)
Light reflection
Detects paper pass in the paper transport section of the paper feed tray
4.
4.
C4PWD
Paper width sensor (Paper feed tray 4)
Resistance volume
Detects the paper width.
C4SPD
Paper remaining quantity detector
(Paper feed tray 4)
(Paper feed tray 4)
Light transmission
Detects the paper remaining quantity.
C4SS1 - 4
Paper feed tray size detector
(Paper feed tray 4)
(Paper feed tray 4)
Tact switch
Detects the paper size. Detects open/close of the paper feed tray.
CCHPD_C
MC cleaner HP sensor (C)
Light transmission
Detects the MC cleaner home position. (CCHP_C)
CCHPD_K
MC cleaner HP sensor (K)
Light transmission
Detects the MC cleaner home position. (CCHP_K)
CCHPD_M
MC cleaner HP sensor (M)
Light transmission
Detects the MC cleaner home position. (CCHP_M)
CCHPD_Y
MC cleaner HP sensor (Y)
Light transmission
Detects the MC cleaner home position. (CCHP_Y)
CCMD_C
MC cleaner shift sensor (C)
Light transmission
Detects the shift distance of the MC cleaner.
CCMD_K
MC cleaner shift sensor (K)
Light transmission
Detects the shift distance of the MC cleaner.
CCMD_M
MC cleaner shift sensor (M)
Light transmission
Detects the shift distance of the MC cleaner.
CCMD_Y
MC cleaner shift sensor (Y)
Light transmission
Detects the shift distance of the MC cleaner.
CIS
Image position sensor
Contact image sensor
Detects the paper edge position in the off-center direction in the PS
section.
section.
DEDC_L
DRUM encoder sensor (C_L)
Light transmission
Detects the drum rotation speed.
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