Sharp MX-6500N / MX-7500N (serv.man20) Service Manual ▷ View online
MX-7500N SIMULATION 6 – 21
4-14
Purpose
Check
Function (Purpose)
LCT temperature and humidity sensor mon-
itor display
Section
LCT
Operation/Procedure
When the machine enters the simulation mode, the current data
When the machine enters the simulation mode, the current data
are displayed.
Since the value varies depending on the use conditions and the
Since the value varies depending on the use conditions and the
operating conditions, use the value as a reference only.
* Data are revised every 5 sec.
* Data are revised every 5 sec.
D
VACUUM FAN DUTY (HEAVY1,2 - L)
Suction fan Duty: Heavy paper 1, 2 Large size
30 - 100
90
E
VACUUM FAN DUTY (HEAVY1,2 - M)
Suction fan Duty: Heavy paper 1, 2 Middle size
30 - 100
90
F
VACUUM FAN DUTY (HEAVY1,2 - S)
Suction fan Duty: Heavy paper 1, 2 Small size
30 - 100
90
G
VACUUM FAN DUTY (HEAVY3,4 - L)
Suction fan Duty: Heavy paper 3, 4 Large size
30 - 100
90
H
VACUUM FAN DUTY (HEAVY3,4 - M)
Suction fan Duty: Heavy paper 3, 4 Middle size
30 - 100
90
I
VACUUM FAN DUTY (HEAVY3,4 - S)
Suction fan Duty: Heavy paper 3, 4 Small size
30 - 100
90
J
VACUUM FAN DUTY (THIN - L)
Suction fan Duty: Thin paper Large size
30 - 100
60
K
VACUUM FAN DUTY (THIN - M)
Suction fan Duty: Thin paper Middle size
30 - 100
60
L
VACUUM FAN DUTY (THIN - S)
Suction fan Duty: Thin paper Small size
30 - 100
60
M
VACUUM FAN DUTY (GROSSY - L)
Suction fan Duty: Glossy paper Large size
30 - 100
60
N
VACUUM FAN DUTY (GROSSY - M)
Suction fan Duty: Glossy paper Middle size
30 - 100
60
O
VACUUM FAN DUTY (GROSSY - S)
Suction fan Duty: Glossy paper Small size
30 - 100
60
P
VACUUM FAN DUTY (OTHER - L)
Suction fan Duty: Other Large size
30 - 100
60
Q
VACUUM FAN DUTY (OTHER - M)
Suction fan Duty: Other Middle size
30 - 100
60
R
VACUUM FAN DUTY (OTHER - S)
Suction fan Duty: Other Small size
30 - 100
60
S
BLOWER FAN DUTY (PLAIN - L)
Separation fan Duty: Normal paper Large size
30 - 100
60
T
BLOWER FAN DUTY (PLAIN - M)
Separation fan Duty: Normal paper Middle size
30 - 100
60
U
BLOWER FAN DUTY (PLAIN - S)
Separation fan Duty: Normal paper Small size
30 - 100
60
V
BLOWER FAN DUTY (HEAVY1,2 - L)
Separation fan Duty: Heavy paper 1, 2 Large size
30 - 100
90
W
BLOWER FAN DUTY (HEAVY1,2 - M)
Separation fan Duty: Heavy paper 1, 2 Middle size
30 - 100
90
X
BLOWER FAN DUTY (HEAVY1,2 - S)
Separation fan Duty: Heavy paper 1, 2 Small size
30 - 100
90
Y
BLOWER FAN DUTY (HEAVY3,4 - L)
Separation fan Duty: Heavy paper 3, 4 Large size
30 - 100
90
Z
BLOWER FAN DUTY (HEAVY3,4 - M)
Separation fan Duty: Heavy paper 3, 4 Middle size
30 - 100
90
AA BLOWER FAN DUTY (HEAVY3,4 - S)
Separation fan Duty: Heavy paper 3, 4 Small size
30 - 100
90
AB BLOWER FAN DUTY (THIN - L)
Separation fan Duty: Thin paper Large size
30 - 100
60
AC BLOWER FAN DUTY (THIN - M)
Separation fan Duty: Thin paper Middle size
30 - 100
60
AD BLOWER FAN DUTY (THIN - S)
Separation fan Duty: Thin paper Small size
30 - 100
60
AE BLOWER FAN DUTY (GROSSY - L)
Separation fan Duty: Glossy paper Large size
30 - 100
60
AF BLOWER FAN DUTY (GROSSY - M)
Separation fan Duty: Glossy paper Middle size
30 - 100
60
AG BLOWER FAN DUTY (GROSSY - S)
Separation fan Duty: Glossy paper Small size
30 - 100
60
AH BLOWER FAN DUTY (OTHER - L)
Separation fan Duty: Other Large size
30 - 100
60
AI
BLOWER FAN DUTY (OTHER - M)
Separation fan Duty: Other Middle size
30 - 100
60
AJ
BLOWER FAN DUTY (OTHER - S)
Separation fan Duty: Other Small size
30 - 100
60
AK ASSIST FAN DUTY (PLAIN - L)
Side assist fan Duty: Normal paper Large size
0 - 100
10
AL
ASSIST FAN DUTY (PLAIN - M)
Side assist fan Duty: Normal paper Middle size
0 - 100
10
AM ASSIST FAN DUTY (PLAIN - S)
Side assist fan Duty: Normal paper Small size
0 - 100
10
AN ASSIST FAN DUTY (HEAVY1,2 - L)
Side assist fan Duty: Heavy paper 1, 2 Large size
0 - 100
10
AO ASSIST FAN DUTY (HEAVY1,2 - M)
Side assist fan Duty: Heavy paper 1, 2 Middle size
0 - 100
10
AP ASSIST FAN DUTY (HEAVY1,2 - S)
Side assist fan Duty: Heavy paper 1, 2 Small size
0 - 100
10
AQ ASSIST FAN DUTY (HEAVY3,4 - L)
Side assist fan Duty: Heavy paper 3, 4 Large size
0 - 100
30
AR ASSIST FAN DUTY (HEAVY3,4 - M)
Side assist fan Duty: Heavy paper 3, 4 Middle size
0 - 100
10
AS ASSIST FAN DUTY (HEAVY3,4 - S)
Side assist fan Duty: Heavy paper 3, 4 Small size
0 - 100
10
AT
ASSIST FAN DUTY (THIN - L)
Side assist fan Duty: Thin paper Large size
0 - 100
10
AU ASSIST FAN DUTY (THIN - M)
Side assist fan Duty: Thin paper Middle size
0 - 100
10
AV ASSIST FAN DUTY (THIN - S)
Side assist fan Duty: Thin paper Small size
0 - 100
10
AW ASSIST FAN DUTY (GROSSY - L)
Side assist fan Duty: Glossy paper Large size
0 - 100
10
AX ASSIST FAN DUTY (GROSSY - M)
Side assist fan Duty: Glossy paper Middle size
0 - 100
10
AY ASSIST FAN DUTY (GROSSY - S)
Side assist fan Duty: Glossy paper Small size
0 - 100
10
AZ ASSIST FAN DUTY (OTHER - L)
Side assist fan Duty: Other Large size
0 - 100
10
BA ASSIST FAN DUTY (OTHER - M)
Side assist fan Duty: Other Middle size
0 - 100
10
BB ASSIST FAN DUTY (OTHER - S)
Side assist fan Duty: Other Small size
0 - 100
10
Item/Display
Content
Setting range
Default value
Display item
Content
Display range
LCT1 TEMP.
LCT1 series temperature
sensor: Temperature
LCT1 series temperature
sensor: AD value
Temperature: 0 - 255
degrees C
AD value: 0 - 65535
LCT1 RH
LCT1 series humidity sensor:
Humidity
LCT1 series humidity sensor:
AD value
Humidity: 0 - 100%
AD value: 0 - 65535
LCT2TEMP.
LCT2series temperature
sensor: Temperature
LCT2series temperature
sensor: AD value
Temperature: 0 - 255
degrees C
AD value: 0 - 65535
LCT2RH
LCT2series humidity sensor:
Humidity
LCT2 series humidity sensor:
AD value
Humidity: 0 - 100%
AD value: 0 - 65535
MX-7500N SIMULATION 6 – 22
* The AD value is displayed by converting the above display range
into hexadecimal number.
* “Degrees C” is displayed as “deg” because of he display fonts.
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.
The contrast changes every 2sec from the current level to MAX -
The LCD is changed as shown below.
The contrast changes every 2sec from the current level to MAX -
MIN - the current level. During this period, each LED is lighted.
The LCD display contrast change and the LED lighting status are
The LCD display contrast change and the LED lighting status are
checked.
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) Select the item to be checked with the touch panel key.
2) Press [EXECUTE] key.
1) Select the item to be checked with the touch panel key.
2) Press [EXECUTE] key.
The selected heater lamp operates ON/OFF.
When [EXECUTE] key is pressed, the operation is terminated.
When [EXECUTE] key is pressed, the operation is terminated.
Heater lamp operation check method:
Remove the front cabinet upper and the paper exit tray, and the
lighting status of each heater lamp can be checked through the
clearance between the fusing pressure release drive gear and the
frame fusing section.
5-3
Purpose
Operation test/check
Function (Purpose)
Used to check the operation of the scanner
lamp and the control circuit.
Section
Scanner (reading)
Operation/Procedure
1) Select the item to be checked with the touch panel key.
2) Press [EXECUTE] key.
1) Select the item to be checked with the touch panel key.
2) Press [EXECUTE] key.
The scanner lamp lights up for 10 sec.
When [EXECUTE] key is pressed, the operation is terminated.
When [EXECUTE] key is pressed, the operation is terminated.
Descriptions of loads (for DSPF)
CS1 HEATER
TEMP.
CS1 CS heater temperature
sensor: Temperature
CS1 CS heater temperature
sensor: AD value
Temperature: 0 - 255
degrees C
AD value: 0 - 65535
CS1 WARM
AIR TEMP.
CS1 CS warm air outlet port
temperature sensor:
Temperature
CS1 CS warm air outlet port
temperature sensor: AD value
Temperature: 0 - 255
degrees C
AD value: 0 - 65535
CS1 TEMP.
CS1 CS temperature sensor:
Temperature
CS1 CS temperature sensor:
AD value
Temperature: 0 - 255
degrees C
AD value: 0 - 65535
CS1 RH
CS1 CS humidity sensor:
Humidity
CS1 CS humidity sensor:
AD value
Humidity: 0 - 100%
AD value: 0 - 65535
CS2 HEATER
TEMP.
CS2 CS heater temperature
sensor: Temperature
CS2 CS heater temperature
sensor: AD value
Temperature: 0 - 255
degrees C
AD value: 0 - 65535
CS2 WARM
AIR TEMP.
CS2 CS warm air outlet port
temperature sensor:
Temperature
CS2 CS warm air outlet port
temperature sensor: AD value
Temperature: 0 - 255
degrees C
AD value: 0 - 65535
CS2 TEMP.
CS2 CS temperature sensor:
Temperature
CS2CS temperature sensor:
AD value
Temperature: 0 - 255
degrees C
AD value: 0 - 65535
CS2 RH
CS2 CS humidity sensor:
Humidity
CS2 CS humidity sensor:
AD value
Humidity: 0 - 100%
AD value: 0 - 65535
CS3 HEATER
TEMP.
CS3 CS heater temperature
sensor: Temperature
CS3 CS heater temperature
sensor: AD value
Temperature: 0 - 255
degrees C
AD value: 0 - 65535
CS3 WARM
AIR TEMP.
CS3 CS warm air outlet port
temperature sensor:
Temperature
CS3 CS warm air outlet port
temperature sensor: AD value
Temperature: 0 - 255
degrees C
AD value: 0 - 65535
CS3 TEMP.
CS3 CS temperature sensor:
Temperature
CS3 CS temperature sensor:
AD value
Temperature: 0 - 255
degrees C
AD value: 0 - 65535
CS3 RH
CS3 CS humidity sensor:
Humidity
CS3 CS humidity sensor:
AD value
Humidity: 0 - 100%
AD value: 0 - 65535
CS4 HEATER
TEMP.
CS4 CS heater temperature
sensor: Temperature
CS4 CS heater temperature
sensor: AD value
Temperature: 0 - 255
degrees C
AD value: 0 - 65535
CS4 WARM
AIR TEMP.
CS4 CS warm air outlet port
temperature sensor:
Temperature
CS4 CS warm air outlet port
temperature sensor: AD value
Temperature: 0 - 255
degrees C
AD value: 0 - 65535
CS4 TEMP.
CS4 CS temperature sensor:
Temperature
CS4 CS temperature sensor:
AD value
Temperature: 0 - 255
degrees C
AD value: 0 - 65535
CS4 RH
CS4 CS humidity sensor:
Humidity
CS4 CS humidity sensor:
AD value
Humidity: 0 - 100%
AD value: 0 - 65535
Display item
Content
Display range
Display
Content
HL_UM
Heater lamp main (Front surface of paper heat roller)
HL_US
Heater lamp sub (Front surface of paper heat roller)
HL_LM
Heater lamp main (Back surface of paper heat roller)
HL_UW
Upper assist heater lamp (Warm-up)
Display
Content
OC COPY LAMP
OC copy lamp
DSPF COPY LAMP
DSPF copy lamp
MX-7500N SIMULATION 6 – 23
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 a target of the operation check with the touch panel key.
1) Select a target of the operation check with the touch panel key.
When [ALL] key is pressed, all the items are selected.
2) Press [EXECUTE] key.
The selected discharge lamp is lighted for 30 sec.
When [EXECUTE] key is pressed, the operation is terminated.
When [EXECUTE] 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 checked with the touch panel key.
2) Press [EXECUTE] key.
1) Select the item to be checked with the touch panel key.
2) Press [EXECUTE] key.
The selected load performs the operation.
When [EXECUTE] key is pressed, the operation is terminated.
When [EXECUTE] 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.
*1: If "Normal rotation" and "Reverse rotation" of a same load are
displayed as different items, when the both are selected at the
same time, "Normal rotation" is performed. In addition, a
change in the rotating direction is accepted only when the
operation is stopped.
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 checked with the touch panel key.
2) Press [EXECUTE] key.
1) Select the item to be checked with the touch panel key.
2) Press [EXECUTE] key.
The selected load performs the operation.
When [EXECUTE] key is pressed, the operation is terminated.
Press [ALL] key to select all the fans collectively.
When [EXECUTE] key is pressed, the operation is terminated.
Press [ALL] key to select all the fans collectively.
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 trans-
port unit and the control circuit.
Section
Process (Transport)
Item name
Content
DL_K
Discharge lamp K
DL_C
Discharge lamp C
DL_M
Discharge lamp M
DL_Y
Discharge lamp Y
DL2_K
After-transfer discharge lamp K
DL2_C
After-transfer discharge lamp C
DL2_M
After-transfer discharge lamp M
DL2_Y
After-transfer discharge lamp Y
Item display name
Content
Transport/
process
CPFM
Paper feed motor
LCCM
LCC transport motor
LCHM1
LCC horizontal transport motor 1
RRM
LCC horizontal transport motor 2
PFM
PS front motor
RRM
Registration motor
FUM
Fusing motor
POM_F
Paper exit motor (normal rotation)(*1)
POM_R
Paper exit motor (reverse rotation)(*1)
WTM
Waste toner transport motor
2TWTM
Secondary transfer waste toner motor
PTRC2
Vertical transport clutch upper
PTRC1
Tray vertical transport clutch
TTRC
Tandem transport clutch
LCCC
LCC transport clutch
DVC_K
Developing clutch K
DVC_C
Developing clutch C
DVC_M
Developing clutch M
DVC_Y
Developing clutch Y
PCSS
Process control shutter solenoid
Paper feed
CPFM
Paper feed motor
T1LUM
Tandem tray 1 lift motor
T2LUM
Tandem tray 2 lift motor
C3LUM
Tray 3 lift motor
C4LUM
Tray 4 lift motor
MPUC
Manual paper feed clutch
T1PUC
Tandem tray 1 paper feed clutch
T2PUC
Tandem tray 2 paper feed clutch
C3PUC
Tray 3 paper feed clutch
C4PUC
Tray 4 paper feed clutch
MPFS
Manual feed take-up solenoid
MPGS
Manual paper feed gate solenoid
T1PUS
Tray 1 pickup solenoid
T2PUS
Tray 2 pickup solenoid
C3PUS
Tray 3 pickup solenoid
C4PUS
Tray 4 pickup solenoid
LSU
LSUSS
LSU shutter solenoid
Display
Content
POFM
Paper exit fan motor rear exhaust
Paper exit fan motor front
Paper exit fan motor rear
Paper exit fan motor front
Paper exit fan motor rear
OZFM12
Ozone exhaust fan motor 1
Ozone exhaust fan motor 2
Ozone exhaust fan motor 2
OZFM3
Ozone exhaust fan motor 3
PSFM
Power cooling fan motor
FUFM
Fusing cooling fan motor
FPRFM
Fusing pressure roller cooling fan motor F
Fusing pressure roller cooling fan motor R
Fusing pressure roller cooling fan motor R
TBFM
Toner bottle cooling fan motor
VFM_R
Main inside ventilation fan motor R
LSUFM
LSU fan motor
ADUFM
ADU transport cooling fan motor
MFPFAN
Controller fan motor
MFPFAN
Controller fan motor, HDD fan motor
SPSFAN
Sub power supply cooling fan motor
Item display name
Content
MX-7500N SIMULATION 6 – 24
Operation/Procedure
1) Select the operation mode with the mode select button.
1) Select the operation mode with the mode select button.
2) When [EXECUTE] key is pressed, the operation of the mode
selected in 1) is performed.
6-4
Purpose
Operation test/check
Function (Purpose)
Used to check the cleaning operation of the
PTC and the main charger.
Section
Process
Operation/Procedure
1) Select the item to be checked with the touch panel key.
2) [MC] On the execution menu, the color is designated with K, C,
1) Select the item to be checked with the touch panel key.
2) [MC] On the execution menu, the color is designated with K, C,
M, and Y. (Two or more colors can be selected.)
3) Press [EXECUTE] key.
List of cleaner operations
6-6
Purpose
Operation test/check
Function (Purpose)
Used to perform fusing pressure release
and applying, and to check the operations
of the control circuits.
Section
Fusing
Operation/Procedure
1) Press [FUSER] key to highlight it.
2) Press [EXECUTE] key, and fusing pressure applying and fus-
1) Press [FUSER] key to highlight it.
2) Press [EXECUTE] key, and fusing pressure applying and fus-
ing pressure release are repeated.
During this period, the status of the fusing roller pressure is dis-
played.
6-90
Purpose
Setting
Function (Purpose)
Used to reset the machine to the factory
setting. (The scanner is set to the lock
enable position)
Section
Scanner
Operation/Procedure
1) Press [EXECUTE] key.
1) Press [EXECUTE] key.
The scanner is shifted to the lock enable position and stopped.
7
7-1
Purpose
Setting
Function (Purpose)
Used to set the operating conditions of
aging.
Section
Others
Operation/Procedure
1) Select an item to be set with the touch panel key.
2) Press [EXECUTE] key.
1) Select an item to be set with the touch panel key.
2) Press [EXECUTE] 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-
1) Enter the intermittent aging operation cycle (unit: sec) with 10-
key.
2) Press [OK] key.
The time entered in procedure 1) is set.
* The interval time that can be set is 1 to 900 (sec).
* 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.
Display
Content
1TC MID
The cam is operated at the process speed in the plain paper
mode.
1TC L1
The cam is operated at the process speed of low speed 1
(220m/s).
1TC L2
The cam is operated at the process speed of low speed 2
(165m/s).
Button
Display
Content
Remarks
1TC MID BLACK
Monochrome mode
position
Black mode position -
Color mode position -
Black mode position -
Drum separation position
-(Black mode position)
(Repeated in this
sequence.)
COLOR
Color mode position
FREE
Drum separation
position
1TC L1
BLACK
Monochrome mode
position
Black mode position -
Color mode position -
Black mode position -
Drum separation position
- (Black mode position)
(Repeated in this
sequence.)
COLOR
Color mode position
FREE
Drum separation
position
1TC L2
BLACK
Monochrome mode
position
Black mode position -
Color mode position -
Black mode position -
Drum separation position
- (Black mode position)
(Repeated in this
sequence.)
COLOR
Color mode position
FREE
Drum separation
position
Display
Cleaning operation
counter
Content
MC
MC(K)COUNT
MC cleaner operation
check (Color can be
selected.)
MC(C)COUNT
MC(M)COUNT
MC(Y)COUNT
MC(M)COUNT
MC(Y)COUNT
PTC
PTC COUNT
PTC cleaner operation
check
ALL
All counter
MC cleaner operation
check (Color cannot be
selected. All colors
cleaning) + PTC cleaner
operation check
PRINT
Fusing pressure
applying
Fusing pressure applying -Fusing
pressure release - (Fusing pressure
applying) The operation is repeated.
FREE
Fusing pressure
release
AGING
Aging operation setup
INTERVAL
Intermittent operation setting
MISFEED DISABLE
JAM detection ignoring setting
FUSING DISABLE
Fusing unit ignoring setting
WARMUP DISABLE
Warming up ignoring setting
DV CHECK DISABLE
Developing unit ignoring setting
SHADING DISABLE
Shading correction operation omitting setting
CCD GAIN FREE
CCD gain adjustment omitting setting
Item
Display
Setting range
Default value
A
CYCLE TIME(SEC)
1 - 900
3
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