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MX-M700N ADJUSTMENTS 6 – 4
Transfer voltage adjustment (print operation mode)
This adjustment is needed in the following situations:
* The high voltage power PWB (MC/DV/TC) has been replaced.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
1)
Go through the modes specified in Simulation 8-6.
2)
Select the number that corresponds to the adjustment item
(FRONT/BACK) using the numeric keypad.
3)
Press the Start key.
4)
Enter the adjustment value (default) using the numeric keypad.
5)
Press the Start key.
(The adjustment value is put into memory, and the correspond-
ing current is output for 30 seconds.)
The operation can be stopped with the SYSTEM SETTINGS key.
NOTE: It is not possible to determine the adjusted transfer voltage
(print operation mode) (FRONT/BACK). If the voltage
seems to be abnormal after setting the default value, there-
fore, the high voltage PWB (MC/DV/TC) should be
replaced.
Transfer voltage adjustment (transfer belt cleaning mode)
This adjustment is needed in the following situations:
* The high voltage power PWB (MC/DV/TC) has been replaced.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
1)
Remove the rear cover of the machine.
2)
Apply a digital multi-meter to the connector CN2 pin (1) of the
high voltage PWB and the chassis GND.
3)
Go through the modes specified in Simulation 8-17.
4)
Select the number that corresponds to the adjustment item
(SHV FRONT / SHV BACK) using the numeric keypad.
5)
Press the Start key.
6)
Set each adjustment item to the default value (enter the adjust-
ment value and then press the Start key).
* The adjustment items (SHV FRONT / SHV BACK)
correspond to the AC component of the 'transfer belt clean-
ing mode voltage' applied to the transfer roller, but this volt-
age component cannot be determined. If the voltage seems
to be abnormal after setting the default adjustment value,
therefore, the high voltage PWB (MC/DV/TC) should be
replaced.
7)
Select the number that corresponds to cleaning operation
mode (THV-) using the numeric keypad.
* The adjustment items (THV-) corresponds to the DC compo-
nent of the 'transfer belt cleaning mode voltage' applied to
the transfer roller.
8)
Press the Start key.
9)
Press the Start key to have the voltage output for 30 seconds.
If the output voltage is not within the requirement, do the fol-
lowing steps.
The operation can be stopped with the SYSTEM SETTINGS
key.
10) Enter the adjustment value using the numeric keypad.
11) Press the Start key.
(The adjustment value is put into memory, and the correspond-
ing voltage is output for 30 seconds.)
Repeat steps 10 to 11 until the output requirement is satisfied.
Press [START] key.
Press [SYSTEM SETTINGS] key.
Press [START] key.
Press [SYSTEM SETTINGS] key.
Or after 30sec output.
SIMULATION 8-6
1
THV+ SETTING. SELECT 1-2, AND PRESS START.
1.FRONT
400
2.BACK
400
55ppm/62ppm = 350
SIMULATION 8-6
THV+ SETTING. INPUT VALUE, AND PRESS START.
1.FRONT(0-800)
400
55ppm/62ppm = 350
SIMULATION 8-6
THV+ SETTING. EXECUTING···.
1.FRONT
400
55ppm/62ppm = 350
(1)
CN2
Press [START] key.
Press [SYSTEM SETTINGS] key.
Press [START] key.
Press [SYSTEM SETTINGS] key.
Or after 30sec output.
SIMULATION 8-17
1
TRANSFER ROLLER SETTING. SELECT 1-3, AND PRESS START.
1.SHV FRONT
450
2.SHV BACK
450
3.THV-
10
SIMULATION 8-17
TRANSFER ROLLER SETTING. INPUT VALUE, AND PRESS START.
1.FRONT (0-600)
450
SIMULATION 8-17
TRANSFER ROLLER SETTING. EXECUTING···.
1.FRONT(0-600)
450