Sharp MX-6500N / MX-7500N (serv.man20) Service Manual ▷ View online
MX-7500N SIMULATION 6 – 25
7-8
Purpose
Operation display
Function (Purpose)
Used to display the warm-up time.
Section
Operation/Procedure
Press [EXECUTE] key.
Counting of the warm-up time is started and the time required for
Press [EXECUTE] key.
Counting of the warm-up time is started and the time required for
warm-up is displayed
* Interruption of counting by pressing [EXECUTE] key is inhibited.
* Interruption of counting by pressing [EXECUTE] key is inhibited.
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 with the touch panel key.
1) Select the copy color with the touch panel key.
(Two or more colors can be selected.)
The key of the selected color is highlighted.
The key of the selected color is highlighted.
2) Press [EXECUTE] key.
Copying is performed with the selected color.
When [CLOSE] key is pressed, the display goes into the copy oper-
ation menu in the simulation mode.
7-12
Purpose
Operation test/check
Function (Purpose)
The document reading number of sheets
setting (for aging operation)
Section
DSPF
Operation/Procedure
1) Set document reading quantity with 10-key.
1) Set document reading quantity with 10-key.
(Setting range:0 - 255)
2) Press [OK] key. The set value is saved.
The aging operation condition set by this mode is maintained here-
The aging operation condition set by this mode is maintained here-
after unless the power is turned off or the setting is changed.
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 are also adjusted simultane-
ously.
Section
Process (Developing)
Operation/Procedure
1) Select a speed with [MIDDLE] and [LOW] keys on the touch
1) Select a speed with [MIDDLE] and [LOW] keys on the touch
panel.
2) Select a target item to be adjusted with scroll keys.
3) Enter the setting value with 10-key. (The value specified on the
3) Enter the setting value with 10-key. (The value specified on the
label of the high voltage PWB must be entered.)
* When the key is pressed, the setting value of each
* When the key is pressed, the setting value of each
item can be changed with 1up (1down) collectively.
4) Press [EXECUTE] key.
The set value is saved and the voltage entered with step 3) is
output for 30 sec.
When [EXECUTE] key is pressed, the output is terminated.
When [EXECUTE] key is pressed, the output is terminated.
K
Setup/cancel of black
C
Setup/cancel of cyan
M
Setup/cancel of magenta
Y
Setup/cancel of yellow
Item
Display
Content
Setting
range
Default
value
A
ORIGINALS Document scan quantity
specification (for aging)
0 - 255
0
Button
Item
Display
Content
Setting
range
Default
value
MIDDLE
A
MIDDLE
SPEED
DVB_K
K developing
bias set value at
middle speed
0 - 600
450
B
MIDDLE
SPEED
DVB_C
C developing
bias set value at
middle speed
0 - 600
450
C
MIDDLE
SPEED
DVB_M
M developing
bias set value at
middle speed
0 - 600
450
D
MIDDLE
SPEED
DVB_Y
Y developing
bias set value at
middle speed
0 - 600
450
LOW
A
LOW1
SPEED
DVB_K
K developing
bias set value at
low speed 1
0 - 600
450
B
LOW1
SPEED
DVB_C
C developing
bias set value at
low speed 1
0 - 600
450
C
LOW1
SPEED
DVB_M
M developing
bias set value at
low speed 1
0 - 600
450
D
LOW1
SPEED
DVB_Y
Y developing
bias set value at
low speed 1
0 - 600
450
E
LOW2
SPEED
DVB_K
K developing
bias set value at
low speed 2
0 - 600
450
F
LOW2
SPEED
DVB_C
C developing
bias set value at
low speed 2
0 - 600
450
G
LOW2
SPEED
DVB_M
M developing
bias set value at
low speed 2
0 - 600
450
H
LOW2
SPEED
DVB_Y
Y developing
bias set value at
low speed 2
0 - 600
450
MX-7500N SIMULATION 6 – 26
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 a speed with [MIDDLE] and [LOW] keys on the touch
1) Select a speed with [MIDDLE] and [LOW] keys on the touch
panel.
2) Select a target item to be adjusted with scroll keys.
3) Enter the adjustment value with 10-key. (The value specified
3) Enter the adjustment value with 10-key. (The value specified
on the label of the high voltage PWB must be entered.)
* When the key is pressed, the setting value of each
* When the key is pressed, the setting value of each
item can be changed with 1up (1down) collectively.
4) Press [EXECUTE] key.
The set value is saved and the voltage entered with step 3) is
output for 30 sec.
When [EXECUTE] key is pressed, the output is terminated.
When [EXECUTE] key is pressed, the output is terminated.
Button
Item/
Display
Content
Setting
range
Default value
65 cpm
machine
75 cpm
machine
MIDDLE
A MIDDLE
SPEED
GB_K
K charging/grid
bias set value
at middle
speed
150 -
850
640
645
B MIDDLE
SPEED
GB_C
C charging/grid
bias set value
at middle
speed
150 -
850
640
645
C MIDDLE
SPEED
GB_M
M charging/grid
bias set value
at middle
speed
150 -
850
640
645
D MIDDLE
SPEED
GB_Y
Y charging/grid
bias set value
at middle
speed
150 -
850
640
645
LOW
A LOW1
SPEED
GB_K
K charging/grid
bias set value
at low speed 1
150 -
850
625
B LOW1
SPEED
GB_C
C charging/grid
bias set value
at low speed 1
150 -
850
625
C LOW1
SPEED
GB_M
M charging/grid
bias set value
at low speed 1
150 -
850
625
D LOW1
SPEED
GB_Y
Y charging/grid
bias set value
at low speed 1
150 -
850
625
E LOW2
SPEED
GB_K
K charging/grid
bias set value
at low speed 2
150 -
850
620
F LOW2
SPEED
GB_C
C charging/grid
bias set value
at low speed 2
150 -
850
620
G LOW2
SPEED
GB_M
M charging/grid
bias set value
at low speed 2
150 -
850
620
H LOW2
SPEED
GB_Y
Y charging/grid
bias set value
at low speed 2
150 -
850
620
MX-7500N SIMULATION 6 – 27
8-6
Purpose
Operation test/check/adjustment
Function (Purpose)
Used to check and adjust the operation of
the transport voltage and the control circuit.
Section
Process (Transport)
Operation/Procedure
1) Select a target item to be adjusted with scroll keys.
2) Enter the set value with 10-key.
1) Select a target item to be adjusted with scroll keys.
2) Enter the set value with 10-key.
Enter the default value specified on the following list.
3) Press [EXECUTE] key.
The set value is saved and the voltage corresponding to the
set value is output for 30 sec.
When [EXECUTE] key is pressed, the output is terminated.
Item/Display
Content
Setting
range
Default value
65cpm
machine
75cpm
machine
A
TC1 LOW 1 SPEED CL K
Primary
transfer bias
reference value
Color
K
Low speed 1
51 - 255
91
91
B
TC1 LOW 2 SPEED CL K
Low speed 2
51 - 255
95
95
C
TC1 MIDDLE SPEED CL K
Middle speed
51 - 255
99
99
D
TC1 LOW 1 SPEED CL C
C
Low speed 1
51 - 255
91
91
E
TC1 LOW 2 SPEED CL C
Low speed 2
51 - 255
95
95
F
TC1 MIDDLE SPEED CL C
Middle speed
51 - 255
99
99
G
TC1 LOW 1 SPEED CL M
M
Low speed 1
51 - 255
91
91
H
TC1 LOW 2 SPEED CL M
Low speed 2
51 - 255
95
95
I
TC1 MIDDLE SPEED CL M
Middle speed
51 - 255
99
99
J
TC1 LOW 1 SPEED CL Y
Y
Low speed 1
51 - 255
91
91
K
TC1 LOW 2 SPEED CL Y
Low speed 2
51 - 255
95
95
L
TC1 MIDDLE SPEED CL Y
Middle speed
51 - 255
99
99
M
TC1 LOW 1 SPEED BW K
Black and
white
K
Low speed 1
51 - 255
91
91
N
TC1 LOW 2 SPEED BW K
Low speed 2
51 - 255
95
95
O
TC1 MIDDLE SPEED BW K
Middle speed
51 - 255
99
99
P
TC2 PLAIN CL SPX
Secondary
transfer bias
reference value
Color
Standard
paper
Front surface
51 - 255
145
145
Q
TC2 PLAIN CL DPX
Back surface
51 - 255
145
145
R
TC2 PLAIN BW SPX
Black and
white
Front surface
51 - 255
138
138
S
TC2 PLAIN BW DPX
Back surface
51 - 255
138
138
T
TC2 HEAVY1 CL SPX
Color
Heavy paper 1
Front surface
51 - 255
110
110
U
TC2 HEAVY1 CL DPX
Back surface
51 - 255
103
103
V
TC2 HEAVY1 BW SPX
Black and
white
Front surface
51 - 255
110
110
W
TC2 HEAVY1 BW DPX
Back surface
51 - 255
103
103
X
TC2 HEAVY2 CL SPX
Color
Heavy paper 2
Front surface
51 - 255
96
96
Y
TC2 HEAVY2 CL DPX
Back surface
51 - 255
87
87
Z
TC2 HEAVY2 BW SPX
Black and
white
Front surface
51 - 255
96
96
AA
TC2 HEAVY2 BW DPX
Back surface
51 - 255
87
87
AB
TC2 OHP CL
OHP
Color
51 - 255
110
110
AC
TC2 OHP BW
Black and
white
51 - 255
110
110
AD
TC2 ENVELOPE CL
Envelope
Color
51 - 255
83
83
AE
TC2 ENVELOPE BW
Black and
white
51 - 255
83
83
AF
TC2 THIN CL
Thin paper
Color
51 - 255
138
138
AG
TC2 THIN BW
Black and
white
51 - 255
138
138
AH
TC2 GLOSSY CL
Glossy paper
Color
51 - 255
110
110
AI
TC2 GLOSSY BW
Black and
white
51 - 255
110
110
AJ
TC2 EMBOSS CL
Embossed paper
Color
51 - 255
96
96
AK
TC2 EMBOSS BW
Black and
white
51 - 255
80
80
AL
TC2 CLEAN LOW 1 SPEED
Bias reference
value between
papers
In low speed 1 print
51 - 255
76
76
AM
TC2 CLEAN LOW 2 SPEED
In low speed 2 print
51 - 255
76
76
AN
TC2 CLEAN MIDDLE SPEED
In middle speed print
51 - 255
76
76
AO
TC2 COUNTER
Counter bias
reference value
Counter bias (positive pole)
51 - 255
109
109
MX-7500N SIMULATION 6 – 28
8-10
Purpose
Operation test/check
Function (Purpose)
Main charger total current output setting
Section
Process
Operation/Procedure
1) Select the item to be checked with the touch panel key.
2) Select an item to be set with the scroll key.
3) Press [OK] key.
1) Select the item to be checked with the touch panel key.
2) Select an item to be set with the scroll key.
3) Press [OK] key.
AP
PTC LOW 1 SPEED CL
PTC current
reference value
Color
Low speed 1
51 - 255
119
119
AQ
PTC LOW 2 SPEED CL
Low speed 2
51 - 255
119
119
AR
PTC MIDDLE SPEED CL
Middle speed
51 - 255
119
119
AS
PTC LOW 1 SPEED BW
Black and white
Low speed 1
51 - 255
119
119
AT
PTC LOW 2 SPEED BW
Low speed 2
51 - 255
119
119
AU
PTC MIDDLE SPEED BW
Middle speed
51 - 255
119
119
AV
PTC EMBOSS
Both
Low speed 2
51 - 255
119
119
AW
CASE VOLT LOW 1 CL
PTC case
voltage
reference value
Color
Low speed 1
0 - 255
0
0
AX
CASE VOLT LOW 2 CL
Low speed 2
0 - 255
0
0
AY
CASE VOLT MIDDLE CL
Middle speed
0 - 255
0
0
AZ
CASE VOLT LOW 1 BW
Black and white
Low speed 1
0 - 255
0
0
BA
CASE VOLT LOW 2 BW
Low speed 2
0 - 255
0
0
BB
CASE VOLT MIDDLE BW
Middle speed
0 - 255
0
0
BC
CASE VOLT EMBOSS
Both
Low speed 2
0 - 255
0
0
BD
TC2 DRIVEROLL LOW 1 SPEED CL
Secondary
transfer drive
roller bias
reference value
Color
Low speed 1
51 - 255
196
196
BE
TC2 DRIVEROLL LOW 2 SPEED CL
Low speed 2
51 - 255
196
196
BF
TC2 DRIVEROLL MIDDLE SPEED CL
Middle speed
51 - 255
196
196
BG
TC2 DRIVEROLL LOW 1 SPEED BW
Black and white
Low speed 1
51 - 255
196
196
BH
TC2 DRIVEROLL LOW 2 SPEED BW
Low speed 2
51 - 255
196
196
BI
TC2 DRIVEROLL MIDDLE SPEED BW
Middle speed
51 - 255
196
196
BJ
TC2 CLEAN BRUSH(+) LOW 1 SPEED
Secondary
transfer
cleaning brush
bias reference
value
(+)
Low speed 1
51 - 255
0
0
BK
TC2 CLEAN BRUSH(+) LOW 2 SPEED
Low speed 2
51 - 255
0
0
BL
TC2 CLEAN BRUSH(+) MIDDLE SPEED
Middle speed
51 - 255
0
0
BM
TC2 CLEAN BRUSH(-) LOW 1 SPEED
(-)
Low speed 1
51 - 255
0
0
BN
TC2 CLEAN BRUSH(-) LOW 2 SPEED
Low speed 2
51 - 255
0
0
BO
TC2 CLEAN BRUSH(-) MIDDLE SPEED
Middle speed
51 - 255
0
0
Item/Display
Content
Setting
range
Default value
65cpm
machine
75cpm
machine
Button
Item
Display
Content
Setting
range
Default
value
Current value
Variable range
Minimum
unit
MIDDLE
A
MIDDLE SPEED MC_K
Main charger total current (middle speed mode) K
60 - 100
70
-
600 - -1000A
100A
B
MIDDLE SPEED MC_C
Main charger total current (middle speed mode) C
60 - 100
70
-
600 - -1000A
100A
C
MIDDLE SPEED MC_M
Main charger total current (middle speed mode) M
60 - 100
70
-
600 - -1000A
100A
D
MIDDLE SPEED MC_Y
Main charger total current (middle speed mode) Y
60 - 100
70
-
600 - -1000A
100A
LOW1
A
LOW1 SPEED MC_K
Main charger total current (low speed 1 mode) K
60 - 100
70
-
600 - -1000A
100A
B
LOW1 SPEED MC_C
Main charger total current (low speed 1 mode) C
60 - 100
70
-
600 - -1000A
100A
C
LOW1 SPEED MC_M
Main charger total current (low speed 1 mode) M
60 - 100
70
-
600 - -1000A
100A
D
LOW1 SPEED MC_Y
Main charger total current (low speed 1 mode) Y
60 - 100
70
-
600 - -1000A
100A
LOW2
A
LOW2 SPEED MC_K
Main charger total current (low speed 2 mode) K
60 - 100
70
-
600 - -1000A
100A
B
LOW2 SPEED MC_C
Main charger total current (low speed 2 mode) C
60 - 100
70
-
600 - -1000A
100A
C
LOW2 SPEED MC_M
Main charger total current (low speed 2 mode) M
60 - 100
70
-
600 - -1000A
100A
D
LOW2 SPEED MC_Y
Main charger total current (low speed 2 mode) Y
60 - 100
70
-
600 - -1000A
100A
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