: Feb. 9 2004
1
AR-M550/M620/M700 SETTING AND ADJUSTMENTS 7 - 4
4) Select the number that corresponds to the adjustment item using
the numeric keypad.
5) Press the Start key.
6) Press the start key to have the voltage output for 30 seconds.
The operation can be stopped with the CUSTOM SETTINGS key.
If the output voltage is not within the requirement, do the following
steps.
7) Enter the adjustment value using the numeric keypad.
8) Press the Start key
(The adjustment value is put into memory, and the corresponding
voltage is output for 30 seconds.)
Repeat steps 7 to 8 until the output requirement is satisfied.
(Transfer voltage adjustment)
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 operation can be stopped with the CUSTOM 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, therefore, 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.
ADJ 1C Adjust the transfer voltage
Item/operation
mode
Simulation
Adjustment voltage
(monitor voltage)
Connector Pin #
Actual voltage/actual
current
Setting range Default
Front print 8-6 FRONT 0 – 800 350 –––
35±1.0µA (1.0 – 1.5Kv) High voltage
power PWB
(MC/DV/TC)
400* 40±1.0µA (2.0 – 2.5Kv)*
Back print BACK 0 – 800 350 –––
35±1.0µA (1.0 – 1.5Kv)
400* 40±1.0µA (2.0 – 2.5Kv)*
Transfer belt
(cleaning)
8-17 SHF FRONT 0 – 600 450 –––AC4.5Kv (p-p)
SHF BACK 0 – 600 450 –––AC4.5Kv (p-p)
THV- 0 – 75 10 DC -100±10v CN2 1
DC -100±10v /
AC4.5Kv (p-p)
Transfer roller
(cleaning)
8-18 CRHV PLUS 0 – 250 200 +2.0±0.1v – Check pin +2000±100v High voltage
power PWB
(TC cleaning)
Transfer roller
(print)
CRHV MINUS 0 – 250 200 –2.0±0.1v – Check pin –2000±100v
1
1
1
*: AR-M700N/U
1
Press [START] key. Press [CUSTOM SETTINGS] key.
Press [START] key. Press [CUSTOM SETTINGS] key.
Or after 30sec output.
SIMULATION 8-6
1
THV+ SETTING. SELECT 1-2, AND PRESS START.
1.FRONT 300
2.BACK 300
SIMULATION 8-6
THV+ SETTING. INPUT VALUE, AND PRESS START.
1.FRONT(0-800)
300
SIMULATION 8-6
THV+ SETTING. EXECUTING···.
1.FRONT
300
(The adjustment value is put into memory, and the corresponding
current is output for 30 seconds.)
1
CN2
1
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