Sharp MX-4140N / MX-4141N / MX-5140N / MX-5141N (serv.man7) Service Manual ▷ View online
MX-5141N ADJUSTMENTS AND SETTINGS 5 – 6
2)
Close the front cabinet.
3)
Select a developing unit to be adjusted.
4)
When [EXECUTE] key is pressed, it is highlighted. The devel-
oping roller rotates, and the toner density sensor detects toner
density, and the output value is displayed.
oping roller rotates, and the toner density sensor detects toner
density, and the output value is displayed.
The above operation is executed for 3 minutes, and the aver-
age value of the toner density sensor detection level is set
(saved) as the reference toner density control value.
age value of the toner density sensor detection level is set
(saved) as the reference toner density control value.
When the reference toner density control adjustment operation
is completed, [EXECUTE] key returns to normal from highlight.
This makes known about whether the adjustment operation is
completed or not.
is completed, [EXECUTE] key returns to normal from highlight.
This makes known about whether the adjustment operation is
completed or not.
The above operation is executed each of the lower speed
mode and the middle speed mode, and the reference toner
density control value is set for each of them.
mode and the middle speed mode, and the reference toner
density control value is set for each of them.
NOTE:
If the operation is interrupted within 3 minutes, the adjustment
result is not reflected.
If the operation is interrupted within 3 minutes, the adjustment
result is not reflected.
When [EXECUTE] key is pressed during rotation, the opera-
tion is stopped and [EXECUTE] key returns to the normal dis-
play.
tion is stopped and [EXECUTE] key returns to the normal dis-
play.
If [EE-EU], [EE-EL], or [EE-EG] is displayed, setting of the ref-
erence toner density control value is not completed normally.
erence toner density control value is not completed normally.
NOTE:
1)
When replacing developer, always replace all the three colors
of Yellow, Magenta, and Cyan.
of Yellow, Magenta, and Cyan.
If only one color is replaced, color balance may be adversely
affected. Black developer can be replaced individually.
affected. Black developer can be replaced individually.
2)
When not replacing the developer, do not execute SIM25-2.
NOTE: During execution of this adjustment, do not insert the toner
cartridge.
Error
display
Error name
Detail of error
EE-EL
EL abnormality
Sensor output level: 1.5V or below. If not,
Control voltage: 8.0V or above.
Control voltage: 8.0V or above.
EE-EU
EU abnormality
Sensor output level: 3.45V or above. If not,
Control voltage: 2.0V or below.
Control voltage: 2.0V or below.
EE-EC
EC abnormality
Sensor output level: other than 2.5V +/- 0.2V
MX-5141N ADJUSTMENTS AND SETTINGS 5 – 7
ADJ 2
Adjusting high voltage values
2-A
Adjust the main charger grid voltage
This adjustment must be performed in the following cases:
* When the MC/DV high voltage power PWB is replaced.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
1)
Enter the SIM 8-2 mode.
2)
Select an output mode to be adjusted with the mode key and the scroll key.
3)
Enter the adjustment value (specified value) of the middle speed mode and press [OK] key.
Remark:
Normally when the default value is set, the specified voltage is out-
putted.
Normally when the default value is set, the specified voltage is out-
putted.
The adjustment value of each color mode is specified on the label
attached to the MC/DV high voltage power PWB. Enter that value.
attached to the MC/DV high voltage power PWB. Enter that value.
GBK:XXX GBC:XXX GBM:XXX GBY:XXX
When [EXECUTE] key is pressed, the voltage entered in the proce-
dure 3) is outputted for 30 sec and the set value is saved.
dure 3) is outputted for 30 sec and the set value is saved.
When [EXECUTE] key is pressed again, the output is stopped.
Note that the adjustment value may differ depending on the MC/DV
high voltage power PWB.
high voltage power PWB.
Since the adjustment value label is attached on the MC/DV high
voltage PWB, the PWB must be removed in order to check the
adjustment value.
voltage PWB, the PWB must be removed in order to check the
adjustment value.
This is a troublesome procedure. Therefore, it is advisable to write
down the adjustment value in advance.
down the adjustment value in advance.
When the adjustment value (specified value) of the middle speed
mode is set, the adjustment values of the other modes are auto-
matically set according to the middle speed mode setting in a cer-
tain relationship.
mode is set, the adjustment values of the other modes are auto-
matically set according to the middle speed mode setting in a cer-
tain relationship.
Since the high voltage output cannot be checked with a digital multi
meter in this model, a judgment of the output must be made by
checking the print image quality.
meter in this model, a judgment of the output must be made by
checking the print image quality.
EXECUTE
EXECUTE
or after 30 sec.
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Item/Display (Mode)
Content
Adjustment
range
Actual voltage
41cpm machine
51cpm machine
MIDDLE
A
MIDDLE SPEED GB_K
Main charger grid voltage (Middle speed mode)
K
150 - 850
-630V
-640V
B
MIDDLE SPEED GB_C
Main charger grid voltage (Middle speed mode)
C
150 - 850
-630V
-640V
C
MIDDLE SPEED GB_M
Main charger grid voltage (Middle speed mode)
M
150 - 850
-630V
-640V
D
MIDDLE SPEED GB_Y
Main charger grid voltage (Middle speed mode)
Y
150 - 850
-630V
-640V
LOW
A
LOW SPEED GB_K
Main charger grid voltage (Low speed mode)
K
150 - 850
-620V
-620V
B
LOW SPEED GB_C
Main charger grid voltage (Low speed mode)
C
150 - 850
-600V
-600V
C
LOW SPEED GB_M
Main charger grid voltage (Low speed mode)
M
150 - 850
-600V
-600V
D
LOW SPEED GB_Y
Main charger grid voltage (Low speed mode)
Y
150 - 850
-600V
-600V
MX-5141N ADJUSTMENTS AND SETTINGS 5 – 8
2-B
Adjust the developing bias voltage
This adjustment must be performed in the following cases:
* When the MC/DV high voltage power PWB is replaced.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
1)
Enter the SIM 8-1 mode.
2)
Select an output mode to be adjusted with the mode key and the scroll key.
3)
Enter the adjustment value (specified value) of the middle speed mode and press [OK] key.
Remark:
Normally when the default value is set, the specified voltage is out-
putted.
Normally when the default value is set, the specified voltage is out-
putted.
The adjustment value of each color mode is specified on the label
attached to the MC/DV high voltage power PWB. Enter that value.
attached to the MC/DV high voltage power PWB. Enter that value.
DVK:XXX DVC:XXX DVM:XXX DVY:XXX
When [EXECUTE] key is pressed, the voltage entered in the proce-
dure 3) is outputted for 30 sec and the set value is saved.
dure 3) is outputted for 30 sec and the set value is saved.
When [EXECUTE] key is pressed again, the output is stopped.
Note that the adjustment value may differ depending on the MC/DV
high voltage power PWB.
high voltage power PWB.
Since the adjustment value label is attached on the MC/DV high
voltage PWB, the PWB must be removed in order to check the
adjustment value.
voltage PWB, the PWB must be removed in order to check the
adjustment value.
This is a troublesome procedure. Therefore, it is advisable to write
down the adjustment value in advance.
down the adjustment value in advance.
When the adjustment value (specified value) of the middle speed
mode is set, the adjustment values of the other modes are auto-
matically set according to the middle speed mode setting in a cer-
tain relationship.
mode is set, the adjustment values of the other modes are auto-
matically set according to the middle speed mode setting in a cer-
tain relationship.
Since the high voltage output cannot be checked with a digital multi
meter in this model, a judgment of the output must be made by
checking the print image quality.
meter in this model, a judgment of the output must be made by
checking the print image quality.
EXECUTE
EXECUTE
㩷
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10-key
or after 30 sec.
Item/Display (Mode)
Content
Adjustment
range
Actual voltage
41cpm machine
51cpm machine
MIDDLE
A
MIDDLE SPEED DVB_K
Developing bias voltage (Middle speed mode)
K
0 - 600
-450V
-450V
B
MIDDLE SPEED DVB_C
Developing bias voltage (Middle speed mode)
C
0 - 600
-450V
-450V
C
MIDDLE SPEED DVB_M
Developing bias voltage (Middle speed mode)
M
0 - 600
-450V
-450V
D
MIDDLE SPEED DVB_Y
Developing bias voltage (Middle speed mode)
Y
0 - 600
-450V
-450V
LOW
A
LOW SPEED DVB_K
Developing bias voltage (Low speed mode)
K
0 - 600
-450V
-450V
B
LOW SPEED DVB_C
Developing bias voltage (Low speed mode)
C
0 - 600
-430V
-430V
C
LOW SPEED DVB_M
Developing bias voltage (Low speed mode)
M
0 - 600
-430V
-430V
D
LOW SPEED DVB_Y
Developing bias voltage (Low speed mode)
Y
0 - 600
-430V
-430V
MX-5141N ADJUSTMENTS AND SETTINGS 5 – 9
2-C
Transfer voltage adjustment
This adjustment must be performed in the following cases:
* When the primary transfer high voltage power PWB or Second-
ary transfer high voltage power PWB is replaced.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
1)
Enter the SIM 8-6 mode.
2)
Select a mode to be adjusted with the scroll key.
3)
Enter an adjustment value (specified value) and press [OK] key.
By setting the default value (specified value), the specified voltage is outputted.
When [EXECUTE] key is pressed, the transfer voltage is outputted.
EXECUTE
EXECUTE
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Item/Display
Content
Setting
range
41cpm machine
51cpm machine
Default
value
Actual
output
output
value
Default
value
Actual
output
output
value
A
TC1 LOW SPEED CL K
Primary transfer bias
reference value
reference value
Color
K
Low speed
51 - 255
95
8
A
95
8
A
B
TC1 MIDDLE SPEED CL K
Middle speed
51 - 255
146
15
A
182
20
A
C
TC1 LOW SPEED CL C
C
Low speed
51 - 255
95
8
A
95
8
A
D
TC1 MIDDLE SPEED CL C
Middle speed
51 - 255
146
15
A
146
15
A
E
TC1 LOW SPEED CL M
M
Low speed
51 - 255
95
8
A
95
8
A
F
TC1 MIDDLE SPEED CL M
Middle speed
51 - 255
146
15
A
146
15
A
G
TC1 LOW SPEED CL Y
Y
Low speed
51 - 255
95
8
A
95
8
A
H
TC1 MIDDLE SPEED CL Y
Middle speed
51 - 255
146
15
A
146
15
A
I
TC1 LOW SPEED BW K
Black/
White
K
Low speed
51 - 255
95
8
A
95
8
A
J
TC1 MIDDLE SPEED BW K
Middle speed
51 - 255
146
15
A
182
20
A
K
TC2 PLAIN CL SPX
Secondary transfer
bias reference value
bias reference value
Color
Standard
paper
Front surface
51 - 255
103
40
A
117
50
A
L
TC2 PLAIN CL DPX
Back surface
51 - 255
96
35
A
103
40
A
M
TC2 PLAIN BW SPX
Black/
White
Front surface
51 - 255
96
30
A
103
40
A
N
TC2 PLAIN BW DPX
Back surface
51 - 255
83
25
A
90
30
A
O
TC2 HEAVY CL SPX
Color
Heavy
paper
Front surface
51 - 255
76
20
A
76
20
A
P
TC2 HEAVY CL DPX
Back surface
51 - 255
69
15
A
69
15
A
Q
TC2 HEAVY BW SPX
Black/
White
Front surface
51 - 255
69
15
A
69
15
A
R
TC2 HEAVY BW DPX
Back surface
51 - 255
62
10
A
62
10
A
S
TC2 HEAVY2 CL
Color
Heavy paper 2
51 - 255
76
20
A
76
20
A
T
TC2 HEAVY2 BW
Black/
White
51 - 255
69
15
A
69
15
A
U
TC2 GLOSSY CL
Gloss paper
Color
51 - 255
76
20
A
76
20
A
V
TC2 GLOSSY BW
Black/White
51 - 255
69
15
A
69
15
A
W
TC2 OHP CL
OHP
Color
51 - 255
76
20
A
76
20
A
X
TC2 OHP BW
Black/White
51 - 255
69
15
A
69
15
A
Y
TC2 ENVELOPE CL
Envelope
Color
51 - 255
69
15
A
76
15
A
Z
TC2 ENVELOPE BW
Black/White
51 - 255
69
15
A
69
15
A
AA
TC2 THIN CL
Thin paper
Color
51 - 255
103
40
A
117
50
A
AB
TC2 THIN BW
Black/White
51 - 255
90
30
A
103
40
A
AC
TC2 CLEANING
Cleaning process
51 - 255
59
8
A
59
8
A
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