Sharp MX-M363N / MX-M363U / MX-M503N / MX-M503U (serv.man17) Service Manual ▷ View online
MX-M503N EXTERNAL VIEW AND INTERNAL STRUCTURE 3 – 5
(2) U model
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.
operations. When a key is touched, a beep sounds and the selected item is highlighted. This provides
confirmation as you perform an operation.
2
Mode select keys and indicators
Use these keys to change the mode displayed in the touch panel.
The indicator of a key lights when the key is selected.
• [PRINT] key / [DOCUMENT FILING] key
The indicator of a key lights when the key is selected.
• [PRINT] key / [DOCUMENT FILING] key
The name and function of the key varies depending on the peripheral devices that are installed.
When a hard drive is not installed in the machine, this key is the [PRINT] key. Press this key to select print
mode when printing data that uses the print hold function.
When a hard drive is installed in the machine, this key is the [DOCUMENT FILING] key. Press this key to
switch to document filing mode when you wish to store a document as an image file on the hard drive or print
or transmit an image stored on the hard drive.
When a hard drive is not installed in the machine, this key is the [PRINT] key. Press this key to select print
mode when printing data that uses the print hold function.
When a hard drive is installed in the machine, this key is the [DOCUMENT FILING] key. Press this key to
switch to document filing mode when you wish to store a document as an image file on the hard drive or print
or transmit an image stored on the hard drive.
• [IMAGE SEND] key
Press this key to select network scanner / fax mode to use the scanner function or fax function.
• [COPY] key
Press this key to select copy mode. Hold the [COPY] key down to view the machine's total page use count and
amount of toner remaining.
amount of toner remaining.
3
PRINT mode indicators
• READY indicator
Print jobs can be received when this indicator is lit.
• DATA indicator
This blinks while print data is being received and lights steadily while printing is taking place.
4
IMAGE SEND mode indicators
• LINE indicator
This lights up during transmission or reception of a fax or Internet fax. This also lights during transmission of an
image in scan mode.
image in scan mode.
• DATA indicator
This blinks when a received fax or Internet fax cannot be printed because of a problem such as out of paper.
This lights up when there is a transmission job that has not been sent.
This lights up when there is a transmission job that has not been sent.
5
Numeric keys
These are used to enter the number of copies, fax numbers, and other numerical values. These keys are also
used to enter numeric value settings (except for the system settings).
used to enter numeric value settings (except for the system settings).
6
[CLEAR] key (
)
Press this key to return the number of copies to "0".
7
[JOB STATUS] key
Press this key to display the job status screen. The job status screen is used to check information on jobs and to
cancel jobs.
cancel jobs.
8
[SYSTEM SETTINGS] key
Press this key to display the system settings menu screen. The system settings are used to configure paper tray
settings, store addresses for transmission operations, and adjust parameters to make the machine easier to use.
settings, store addresses for transmission operations, and adjust parameters to make the machine easier to use.
9
Function key
To use the Sharp OSA function, press this key to switch to Sharp OSA mode.
10
[START] key
Press this key to copy or scan an original. This key is also used to send a fax in fax mode.
11
[LOGOUT] key (
)
Press this key to log out after you have logged in and used the machine. When using the fax function, this key
can also be pressed to send tone signals on a pulse dial line.
can also be pressed to send tone signals on a pulse dial line.
12
[#/P] key (
)
When using the copy function, press this key to use a job program. When using the fax function, this key can be
used when dialing.
used when dialing.
13
[CLEAR ALL] key (
)
Press this key to return to the initial operation state. Use this key when you wish to cancel all settings that have
been selected and start operation from the initial state.
been selected and start operation from the initial state.
14
[STOP] key (
)
Press this key to stop a copy job or scanning of an original.
15
[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.
16
[POWER] key (
)
Use this key to turn the machine power on and off.
17
Main power indicator
This lights up when the machine's main power switch is in the "on" position.
1
LOGOUT
JOB STATUS
IMAGE SEND
DOCUMENT
FILING
COPY
PRINT
READY
DATA
DATA
DATA
LINE
SYSTEM
SETTINGS
SETTINGS
(5)
(3)
(6)
(4)
(2)
(1)
(8) (9)
(7)
(13)
(14)
(15)
(11)
(12)
(16) (17)
(10)
: '10/Jun/01
1
MX-M503N EXTERNAL VIEW AND INTERNAL STRUCTURE 3 – 6
E. DSPF
(1) Internal structure
(2) Sensors and Switches
No.
Name
Function/Operation
1
Pickup roller
Picks up a document and feeds it to the paper feed roller.
2
Paper feed roller
Performs the paper feed operation of documents.
3
Separation roller
Separate a document to prevent against double-feed.
4
Resist roller (Drive)
Performs resist of document transport.
5
Resist roller (Idle)
Applied a pressure to document and the resist roller, and provides transport power of the resist roller to document.
6
Transport roller 1 (Drive)
Transports document from resist roller to transport roller 2.
7
Transport roller 1 (Idle)
Applied a pressure to document and the transport roller, and provides the transport power of the transport roller to
document.
document.
8
Transport roller 2 (Drive)
Transports document to the transport 3 roller.
9
Transport roller 2 (Idle)
Applied a pressure to document and the transport roller, and provides the transport power of the transport roller to
document.
document.
10
Transport roller 3 (Drive)
Transports document from the transport roller 2 to the paper exit roller.
11
Transport roller 3 (Idle)
Applied a pressure to document and the transport roller, and provides the transport power of the transport roller to
document.
document.
12
Paper exit roller (Drive)
Discharges document.
13
Paper exit roller (Idle)
Applies a pressure to document and the paper exit roller and provides transport power of the paper exit roller to
document.
document.
14
Transport auxiliary roller
Helps to transport document smoothly.
Signal name
Name
Type
Function/Operation
CIS
CIS unit
CIS
Converts document images (optical signals) into electrical signals.
SCOV
DSPF upper cover open/close sensor
Micro switch
Detects open/close of the DSPF upper cover.
SOCD
DSPF open/close sensor
Transmission type
Detects open/close of the DSPF unit.
SPED
DSPF document sensor
Transmission type
Detects document empty in the DSPF paper feed tray.
SPLS1
DSPF document length sensor (short)
Transmission type
Detects the document length in the DSPF paper feed tray.
SPLS2
DSPF document length sensor (long)
Transmission type
Detects the document length in the DSPF paper feed tray.
SPPD1
DSPF document pass sensor 1
Transmission type
Detects pass of the document.
SPPD2
DSPF document pass sensor 2
Transmission type
Detects pass of the document.
SPPD3
DSPF document pass sensor 3
Transmission type
Detects pass of the document.
SPPD5
DSPF document pass sensor 5
Transmission type
Detects pass of the document.
SPPD6 (SPOD)
DSPF document exit sensor
Transmission type
Detects pass of the document.
SPWS
DSPF document width sensor
Volume resistor
Detects the document width in the DSPF paper feed tray.
2 3
14
5 4
1
11
10
9
7
8
6
12 13
SPED
CIS
SPWS
SPLS1
SPLS2
SPPD6 (SPOD)
SPPD1
SCOV
SPPD2
SPPD3
SPPD5
SOCD
MX-M503N EXTERNAL VIEW AND INTERNAL STRUCTURE 3 – 7
(3) Motors, clutches, solenoids, PWB and lamps
F. RSPF
(1) Internal structure
Signal name
Name
Type
Function/Operation
FAN
Cooling fan motor
DC motor
Cools the CIS unit and the motor.
SPFM
Transport motor
Stepping motor
Drives the transport roller.
SPM
Paper feed motor
Stepping motor
Drives the roller in the paper feed section.
STMPS
Stamp solenoid
Electromagnetic solenoid
Drives the stamp.
SRRC
PS clutch
Electromagnetic clutch
Controls ON/OFF of resist roller.
No.
Name
Function/Operation
1
DSPF control PWB
Controls the DSPF section.
2
DSPF flash ROM PWB
Program ROM for DSPF
3
DSPF driver PWB
Drives the motor and the clutch in the DSPF section.
4
DSPF CIS unit
Reads document images. (CIS PWB: CIS control, LED: Light source)
No.
Name
Function/Operation
1
Pickup roller
Picks up a document and feeds it to the paper feed roller.
2
Paper feed roller
Performs the paper feed operation of documents.
3
Separation roller
Separate a document to prevent against double-feed.
4
Resist roller (Drive)
Performs resist of document transport.
5
Resist roller (Idle)
Applied a pressure to document and the resist roller, and provides transport power of the resist roller to document.
6
Transport roller 1 (Drive)
Transports document from resist roller to transport roller 2.
7
Transport roller 1 (Idle)
Applied a pressure to document and the transport roller, and provides the transport power of the transport roller to document.
8
Transport roller 2 (Drive)
Transports document to the transport 3 roller.
9
Transport roller 2 (Idle)
Applied a pressure to document and the transport roller, and provides the transport power of the transport roller to document.
10
Transport roller 3 (Drive)
Transports document from the transport roller 2 to the paper exit roller. / Transports document to the resist roller when
reversing the document.
reversing the document.
11
Transport roller 3 (Idle)
Applied a pressure to document and the transport roller, and provides the transport power of the transport roller to document.
12
Paper exit roller (Drive)
Discharges document.
13
Paper exit roller (Idle)
Applies a pressure to document and the paper exit roller and provides transport power of the paper exit roller to document.
14
Transport auxiliary roller
Helps to transport document smoothly.
15
Reverse gate
Reverses a document to scan the back surface of the document.
SPFM
STMPS
SPM
SRRC
1
2
3
FAN
4
2 3
14
5 4
1
11
10
15
9
7
8
6
12 13
MX-M503N EXTERNAL VIEW AND INTERNAL STRUCTURE 3 – 8
(2) Sensors and Switches
(3) Motors, clutches, solenoids, PWB
Signal name
Name
Type
Function/Operation
SCOV
RSPF upper cover open/close sensor
Micro switch
Detects open/close of the RSPF upper cover.
SOCD
RSPF open/close sensor
Transmission type
Detects open/close of the RSPF unit.
SPED
RSPF document sensor
Transmission type
Detects document empty in the RSPF paper feed tray.
SPLS1
RSPF document length sensor (short)
Transmission type
Detects the document length in the RSPF paper feed tray.
SPLS2
RSPF document length sensor (long)
Transmission type
Detects the document length in the RSPF paper feed tray.
SPPD1
RSPF document pass sensor 1
Transmission type
Detects pass of the document.
SPPD2
RSPF document pass sensor 2
Transmission type
Detects pass of the document.
SPPD3
RSPF document pass sensor 3
Transmission type
Detects pass of the document.
SPPD5
RSPF document pass sensor 5
Transmission type
Detects pass of the document.
SPWS
RSPF document width sensor
Volume resistor
Detects the document width in the RSPF paper feed tray.
Signal name
Name
Type
Function/Operation
SPFM
Transport motor
Stepping motor
Drives the transport roller.
SPM
Paper feed motor
Stepping motor
Drives the roller in the paper feed section.
SPRS
Pressure release solenoid
Electromagnetic solenoid
Releases the pressure of the transport roller 3 when reversing a document and
transporting it to the resist roller.
transporting it to the resist roller.
SRRC
PS clutch
Electromagnetic clutch
Controls ON/OFF of resist roller.
SRVC
Reverse clutch
Electromagnetic clutch
Controls ON/OFF of the transport power of the transport roller 3 and the paper exit
roller when discharging a document and reversing it to transport to the resist roller.
roller when discharging a document and reversing it to transport to the resist roller.
STMPS
Stamp solenoid
Electromagnetic solenoid
Drives the stamp.
No.
Name
Function/Operation
1
RSPF driver PWB
Drives the motor and the clutch in the RSPF section.
SPED
SPWS
SPLS1
SPLS2
SPPD1
SCOV
SPPD2
SPPD3
SPPD5
SOCD
1
SPFM
STMPS
SPM
SRRC
SRVC
SPRS
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