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MX-4101N ADJUSTMENTS 5 – 5
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.
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.
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.
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.
NOTE:
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.
If [EE-EU], [EE-EL], or [EE-EG] is displayed, setting of the ref-
erence toner density control value is not completed normally.
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.
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.
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.
NOTE:
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.
If [EE-EU], [EE-EL], or [EE-EG] is displayed, setting of the ref-
erence toner density control value is not completed normally.
5)
Use SIM24-5 to clear the developer counter.
6)
Use SIM44-27 to clear the half-tone correction data.
NOTE:
1)
1)
When replacing developer, always replace all the three colors
of Yellow, Magenta, and Cyan.
If only one color is replaced, color balance may be adversely
affected. Black developer can be replaced individually.
of Yellow, Magenta, and Cyan.
If only one color is replaced, color balance may be adversely
affected. Black developer can be replaced individually.
2)
After replacement of developer or the photoconductor, be sure
to execute SIM44-27 to clear the half-tone correction data.
If the above procedure is neglected, the half-tone correction
may not be performed correctly.
to execute SIM44-27 to clear the half-tone correction data.
If the above procedure is neglected, the half-tone correction
may not be performed correctly.
3)
When not replacing the developer, do not execute SIM25-2.
ADJ 4
Adjusting high voltage values
4-A
Adjust the main charger grid voltage
This adjustment is needed in the following situations:
* 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)
* 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.
the scroll key.
3)
Enter the adjustment value (specified value) of the middle
speed mode and press [OK] key.
speed mode and press [OK] key.
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
EXECUTE
EXECUTE
or after 30 sec.
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Item
Mode
Adjustment
range
Monitor (MC/DV high voltage
PWB)
Actual voltage
Monitor voltage
(Specified value)
Check
pin
MIDDLE
A
MIDDLE SPEED GB_K
K
Main charger grid voltage
(Middle speed mode)
(Middle speed mode)
150 - 850
18.2
± 1.1V
GB-K
-640V
B
MIDDLE SPEED GB_C
C
Main charger grid voltage
(Middle speed mode)
(Middle speed mode)
150 - 850
GB-C
C
MIDDLE SPEED GB_M
M
Main charger grid voltage
(Middle speed mode)
(Middle speed mode)
150 - 850
GB-M
D
MIDDLE SPEED GB_Y
Y
Main charger grid voltage
(Middle speed mode)
(Middle speed mode)
150 - 850
GB-Y
LOW
A
LOW SPEED GB_K
K
Main charger grid voltage
(Low speed mode)
(Low speed mode)
150 - 850
17.7
± 1.1V
GB-K
-620V
B
LOW SPEED GB_C
C
Main charger grid voltage
(Low speed mode)
(Low speed mode)
150 - 850
GB-C
C
LOW SPEED GB_M
M
Main charger grid voltage
(Low speed mode)
(Low speed mode)
150 - 850
GB-M
D
LOW SPEED GB_Y
Y
Main charger grid voltage
(Low speed mode)
(Low speed mode)
150 - 850
GB-Y
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