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Model
MX-C250 MX-C250E MX-C250F MX-C250FE MX-C250FR MX-C300F MX-C300W MX-C300WE MX-C300A MX-C300WR (serv.man6)
Pages
127
Size
29.56 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Service Manual (Revised May 2016).
File
mx-c250-mx-c250e-mx-c250f-mx-c250fe-mx-c250fr-mx-c.pdf
Date

Sharp MX-C250 / MX-C250E / MX-C250F / MX-C250FE / MX-C250FR / MX-C300F / MX-C300W / MX-C300WE / MX-C300A / MX-C300WR (serv.man6) Service Manual ▷ View online

MX-C250  SIMULATION  6 – 7
3. Details of simulation
1
1-1
Purpose
:
Operation test/check
Function (Purpose)
Used to check the operation of the scanner
(reading) unit and the control circuit.
Section
Scanner (reading)
Operation/Procedure
1) Select the operation speed with 10 keys.
2) Press [[OK]/[START] key.
Scanning is once performed at the speed corresponding to the
scan resolution (operation speed).
1-2
Purpose
:
Operation test/check
Function (Purpose)
Used to check the sensors in the scanner
(reading) section and the related circuits.
Section
Scanner (reading)
Operation/Procedure
The operating status of the sensor is displayed.
When "MHPS" is highlighted, the scanner unit is in the home posi-
tion.
2
2-1
Purpose
:
Operation test/check
Function (Purpose)
Used to check the operations of the auto
document feed unit and the control circuit.
Section
RSPF
Operation/Procedure
1) Select the operation mode and the speed with 10keys.  .
2) Press [OK]/[START] key.
The RSPF repeats paper feed, transport, and paper exit oper-
ations at the speed corresponding to the scan resolution (oper-
ation speed).
When [STOP] key is pressed, the operation is terminated.
2-2
Purpose
:
Operation test/check
Function (Purpose)
Used to check the operations of the sen-
sors and the detectors in the document
feed unit section and the control circuits.
Section
SSPF/RSPF
Operation/Procedure
The operating conditions of the sensors and detectors are dis-
played.
The code names of the sensors and the detectors which are active
are highlighted.
SSPF
RSPF
2-3
Purpose
:
Operation test/check
Function (Purpose)
Used to check the operations of the loads
in the auto document feed unit and the con-
trol circuit.
Section
RSPF
Operation/Procedure
1) Select a target item of the operation check with 10 keys.
2) Press [OK]/[START] key.
The selected load performs the operation.
When [STOP] key is pressed, the operation is terminated.
SSPF
RSPF
Item
No.
Display
Operation mode
Default 
value
OC SCAN
1
MONO300
300DPI(112.0mm/s)
2
MONO400
400DPI(84.0mm/s)
3
MONO600
600DPI(56.0mm/s)
4
COLOR300
300DPI(56.0mm/s)
5
COLOR400
400DPI(42.0mm/s)
6
COLOR600
600DPI(28.0mm/s)
Item
No.
Display
Operation mode
Default 
value
SSPF
1
MONO300S
Monochrome 300DPI Single
2
MONO600S
Monochrome 600DPI Single
3
COLOR300S
Color 300DPI Single
4
COLOR600S
Color 600DPI Single
RSPF
1
MONO300S
Monochrome 300DPI Single
2
MONO600S
Monochrome 600DPI Single
3
COLOR300S
Color 300DPI Single
4
COLOR600S
Color 600DPI Single
5
MONO300D
Monochrome 300DPI duplex
6
MONO600D
Monochrome 600DPI duplex
7
COLOR300D
Color 300DPI duplex
8
COLOR600D
Color 600DPI duplex
Sensor name
Contents
SPPD1
SPF transport detector 1
SPED
SPF document empty detector
Sensor name
Contents
SPPD1
SPF transport detector 1
SPPD2
SPF transport detector 2
SPED
SPF document empty detector
SCOV
SPF cover open/close detector
SPFM
SPF transport motor 
SPFM_F
SPF transport motor (normal rotation)
SPFM_R
SPF transport motor (reverse rotation)
SPUS
SPF paper feed roller solenoid
SRVC
Reverse clutch
MX-C250  SIMULATION  6 – 8
5
5-1
Purpose
Operation test/check
Function (Purpose)
Used to check the operation of the display,
LCD in the operation panel, and control cir-
cuit
Section
Operation panel
Operation/Procedure
The LCD is changed as shown below.
During this period, each LED is lighted.
The LCD display contrast change and the LED lighting status are
checked.
When [OK]/[START] KEY is pressed during the operation, it will be
switched to [Key input check] mode.
NOTE: [Key input check] mode is to check if the keys on the oper-
ation panel can be detected physically.
5-2
Purpose
:
Operation test/check
Function (Purpose)
Used to check the operation of the heater
lamp and the control circuit.
Section
Fusing
Operation/Procedure
1) Press [OK]/[START] key.
The heater lamp operates ON/OFF.
When [CA] key is pressed, the operation is terminated.
5-3
Purpose
:
Operation test/check
Function (Purpose)
Used to check the operation of the copy
lamp and the control circuit.
Section
Scanner (reading)
Operation/Procedure
1) Select the item to be operation checked with .
2) Press [OK]/[START] key.
The copy lamp lights up for 10 sec.
When [STOP] key is pressed, the operation is terminated.
5-4
Purpose
:
Operation test/check
Function (Purpose)
Used to check the operation of the dis-
charge lamp and the control circuit.
Section
Process
Operation/Procedure
1) Select the item to be operation checked with .
2) Press [OK]/[START] key.
The discharge lamp lights up for 30 sec.
When [STOP] key is pressed, the operation is terminated.
6
6-1
Purpose
:
Operation test/check
Function (Purpose)
Used to check the operations of the load in
the paper transport system (clutches and
solenoids) and the control circuits.
Section
Paper transport/Paper exit section
Operation/Procedure
1) Select the item to be operation checked with 10 keys.
2) Press [OK]/[START] key.
The selected load performs the operation.
When [STOP] key is pressed, the operation is terminated.
Load operation check method: 
The load operation is checked by the operation sound. However,
there are some loads which cannot be checked with the operation
sound.
6-2
Purpose
:
Operation test/check
Function (Purpose)
Used to check the operations of each fan
motor and its control circuit.
Section
Others
Operation/Procedure
1) Select the item to be operation checked with 10 keys..
2) Press [OK]/[START] key.
Item
Contents
Note
MONO
Turn on the lamp for mono-
chrome
Turn on G color lighting
COLOR
Turn on the lamp for color
Turn on RGB color lighting in 
order.  
㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌
Sim5-1 LCD/LED CHK. 
Sim5-1 LCD/LED CHK.
0
DL_K
Discharge lamp for K
DL_C
Discharge lamp for C
DL_M
Discharge lamp for M
DL_Y
Discharge lamp for Y
Item/Dis-
play
Name
Content
FUM
Fusing motor
Fusing motor middle speed 
drive ON/OFF
CPUC
Paper feed tray 1 paper 
feed clutch
CPUC1 Signal ON/OFF
RRC
PS clutch
RRC Signal ON/OFF
MPFC
Manual paper feed clutch
MPUC1 Signal ON/OFF
POC
Paper delivery clutch
POC Signal ON/OFF
PORC
Paper delivery / switch back 
clutch
PORC Signal ON/OFF
ADUC
ADU transport clutch 1
ADUC1 Signal ON/OFF
PCSS
Process control shutter 
solenoid
PCSS Signal ON/OFF
C2MM
Paper feed tray 2 paper 
feed motor
C2MM Paper feed speed 
drive ON/OFF
C2LUM
Paper feed tray 2 lift up 
motor
C2LUM Signal ON/OFF
C2PFC
Paper feed tray 2 paper 
feed clutch
C2PFC Signal ON/OFF
C2TRC
Paper feed tray 2 paper 
transport clutch
C2TRC Signal ON/OFF
2
‘13/Oct
2
MX-C250  SIMULATION  6 – 9
The selected load performs the operation.
When [STOP] key is pressed, the operation is terminated.
Load operation check method: 
The load operation is checked by the operation sound. However,
there are some loads which cannot be checked with the operation
sound.
6-3
Purpose
:
Operation test/check
Function (Purpose)
Used to check the operations of the primary
transfer unit and the control circuit.
Section
Process (Transfer)
Operation/Procedure
1) Press [OK]/[START] key, and the transfer unit repeats opera-
tions in the mode selected in procedure 1.
During this operation, the transfer unit status (the operation mode
position) is displayed.
6-90
Purpose
:
Setting
Function (Purpose)
Used to set the machine to the factory set-
tings. 
Section
Scanner
Operation/Procedure
1) Press [OK]/[START] key. The scanner is moved to the position
where it can be locked.  
7
7-1
Purpose
Setting
Function (Purpose)
Used to set the operating conditions of
aging.
Section
Others
Operation/Procedure
1) Select the target to be set with 10 keys...
2) Press [OK]/[START] key.
The machine is rebooted in the aging mode.
The aging operation condition set by this mode is maintained here-
after unless the power is turned off or the setting is changed.
7-6
Purpose
:
Setting
Function (Purpose)
Used to set the operating intermittent aging
cycle.
Section
Operation/Procedure
1) Enter the intermittent aging operation cycle (unit: sec) with 10
key.
2) Press [OK]/[START] key.
The time entered in procedure 1) is set.
* The interval time that can be set is 1 to 900 (sec).
The aging operation condition set by this mode is maintained here-
after unless the power is turned off or the setting is changed.
7-9
Purpose
:
Operation test/check
Function (Purpose)
Color setting in the color copy test mode
(Used to check the copy operation and the
image quality for each color).
Section
Operation/Procedure
1) Select the copy color with10 keys. 
(Two or more colors can be selected.)
The key of the selected color is highlighted.
2) Press [OK]/[START] key.
Copying is performed with the selected color.
When [BACK] key is pressed, the display goes into the copy opera-
tion menu in the simulation mode.
7-12
Purpose
:
Operation test/check
Function (Purpose)
The document reading number of sheets
setting (for aging operation)
Section
RSPF
Operation/Procedure
1) Set document reading quantity with 10 key. 
(Setting range:0 - 255)
2) Press [OK]/[START] key. The set value is saved.
The aging operation condition set by this mode is maintained here-
after unless the power is turned off or the setting is changed.
Item/Display
Content
POFM
Paper exit cooling fan motor
PSFM
Power PWB cooling fan motor
LSUFM
LSU cooling fan motor
OZFM1
Ozone fan motor 1
Mode
select key
Display
Transfer 
mode
Operation
TC1
BLACK
Black mode 
position
The switching operations are 
repeated as follows: Drum separa-
tion position - Black mode position - 
Color mode position
COLOR
Color mode 
position
FREE
Drum sepa-
ration posi-
tion
No.
Item/Display
Content
Setting 
range
Setting 
value
1
AGING
Aging operation setup
0-1
0
2
INTERVAL
Intermittent setup
0-1
0
3
MISFEED 
DISABLE
JAM detection enable/disable 
setup
0-1
0
4
FUSING DIS-
ABLE
Fusing operation enable/dis-
able setup
0-1
0
5
WARMUP 
DISABLE
Warm-up skip setup
0-1
0
6
DV CHECK 
DISABLE
DV unit detection enable/dis-
able setup
0-1
0
7
SHADING 
DISABLE
Shading disable setup
0-1
0
8
CCD GAIN 
FREE
No setting of the CCD gain 
adjustment
0-1
0
No.
Item/Display
Content
Setting 
range
Setting 
value
1
K
Setup/cancel of black
0-1
0
2
C
Setup/cancel of cyan
0-1
0
3
M
Setup/cancel of magenta
0-1
0
4
Y
Setup/cancel of yellow
0-1
0
MX-C250  SIMULATION  6 – 10
8
8-1
Purpose
:
Operation test/check/adjustment
Function (Purpose)
Used to check and adjust the operations of
the developing voltage in each print mode
and the control circuit. 
* When the middle speed is adjusted, the
low speed is also adjusted simultaneously.
Section
Process (Developing)
Operation/Procedure
1) Select the process speed with 10 keys.
2) Select a target item to be adjusted with Arrow keys.
3) Enter the setting value with 10 keys. (The value specified on the
label of the high voltage PWB must be entered.)
* When the Arrow key is pressed, the setting value of each
item can be changed with 1up (1down) collectively.
4) Press [OK]/[START] key. 
When [EXECUTE] key is pressed, the voltage inputted in pro-
cedure 3 is outputted for 30sec and the set value is saved.
When [EXECUTE] key is pressed, the output is terminated.
8-2
Purpose
:
Operation test/check/adjustment
Function (Purpose)
Used to check and adjust the operation of
the main charger grid voltage in each
printer mode and the control circuit. 
* When the middle speed is adjusted, the
low speed are also adjusted simultane-
ously.
Section
Process (Charging)
Operation/Procedure
1) Select the process speed.
2) Select a target item to be adjusted with Arrow keys.
3) Enter the adjustment value with 10 keys. (The value specified
on the label of the high voltage PWB must be entered.)
* When the Arrow key is pressed, the setting value of each
item can be changed with 1up (1down) collectively.
4) Press [OK]/[START] key. 
When [EXECUTE] key is pressed, the voltage inputted in pro-
cedure 3 is outputted for 30sec and the set value is saved.
When [EXECUTE] key is pressed, the output is terminated.
No.
Item/Dis-
play
Content
Setting 
range
Volt
age
1
M DVB_K
K developing bias set value at 
middle speed
0-600
450
2
M DVB_C
C developing bias set value at 
middle speed
0-600
450
3
M DVB_M
M developing bias set value at 
middle speed
0-600
450
4
M DVB_Y
Y developing bias set value at 
middle speed
0-600
450
5
L  DVB_K
K developing bias set value at low 
speed
0-600
450
6
L  DVB_C
C developing bias set value at low 
speed
0-600
450
7
L  DVB_M
M developing bias set value at low 
speed
0-600
450
8
L  DVB_Y
Y developing bias set value at low 
speed
0-600
450
No.
Item/
Display
Content
Setting 
range
Default 
setting
1
M GB_K
K grid bias set value at middle speed
150-850
630
2
M GB_C
C grid bias set value at middle speed
150-850
630
3
M GB_M
M grid bias set value at middle speed
150-850
630
4
M GB_Y
Y grid bias set value at middle speed
150-850
630
5
L GB_K
K grid bias set value at low speed
150-850
615
6
L GB_C
C grid bias set value at low speed
150-850
595
7
L GB_M
M grid bias set value at low speed
150-850
595
8
L GB_Y
Y grid bias set value at low speed
150-850
595
No.
Item/
Display
Content
Setting 
range
Default 
setting
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