: Feb. 9 2004
1
AR-M550/M620/M700 SETTING AND ADJUSTMENTS 7 - 3
3) Go through the modes specified in Simulation 8-2. 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.
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.
(Main charger grid voltage adjustment)
1) Remove the rear cover of the machine.
2) Apply a digital multi-meter to the connector CN2 pin (7) of the high
voltage PWB and the chassis GND.
3) Go through the modes specified in Simulation 8-1.
Press [START] key. Press [CUSTOM SETTINGS] key.
Press [START] key. Press [CUSTOM SETTINGS] key.
Or after 30sec output.
SIMULATION 8-2
1
MAIN GRID SETTING. SELECT 1-6, AND PRESS START.
1.AUTO 580 2.CHARACTER 580
3.MIX 580 4.PHOTO 580
5.PRINTER 580 6.FAX 580
SIMULATION 8-2
MAIN GRID SETTING. INPUT VALUE, AND PRESS START.
1.AUTO (200-1000)
580
SIMULATION 8-2
MAIN GRID SETTING. EXECUTING···.
1.AUTO
580
ADJ 1B Adjust the developing bias voltage
Item/operation mode
Simulation
High voltage power PWB (MC/DV/TC)
Setting range Default Connector Pin # Actual voltage
Copy Auto mode 8-1 AUTO 0 – 750 495 CN2 7 –500±5v
Text mode CHARACTER 0 – 750 495 CN2 7 –500±5v
Text/photo mode MIX 0 – 750 495 CN2 7 –500±5v
Photo mode PHOTO 0 – 750 495 CN2 7 –500±5v
Printer All modes PRINTER 0 – 750 495 CN2 7 –500±5v
FAX All modes FAX 0 – 750 495 CN2 7 –500±5v
Cleaning mode PLUS 0 – 250 150 CN2 7 +150±5v
1
CN2
7
Press [START] key. Press [CUSTOM SETTINGS] key.
Press [START] key. Press [CUSTOM SETTINGS] key.
Or after 30sec output.
SIMULATION 8-1
1
DV BIAS SETTING. SELECT 1-7, AND PRESS START.
1.AUTO 495 2.CHARACTER 495
3.MIX 495 4.PHOTO 495
5.PRINTER 495 6.FAX 495 7.PLUS 150
SIMULATION 8-1
DV BIAS SETTING. INPUT VALUE, AND PRESS START.
1:AUTO (0-750)
495
SIMULATION 8-1
DV BIAS SETTING. EXECUTING···.
1:AUTO
495
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