Read Sharp AR-M550 (serv.man14) Service Manual online
AR-M550/M620 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.
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.)
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.
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
Adjustment voltage
(monitor voltage)
Connector
Pin #
Actual
voltage
Copy
Auto mode
8-1
AUTO
0 – 750
495
–500±5v
CN2
7
–500±5v
Text mode
CHARACTER
0 – 750
495
–500±5v
CN2
7
–500±5v
Text/photo mode
MIX
0 – 750
495
–500±5v
CN2
7
–500±5v
Photo mode
PHOTO
0 – 750
495
–500±5v
CN2
7
–500±5v
Printer
All modes
PRINTER
0 – 750
495
–500±5v
CN2
7
–500±5v
FAX
All modes
FAX
0 – 750
495
–500±5v
CN2
7
–500±5v
Cleaning mode
PLUS
0 – 250
150
+150±5v
CN2
7
+150±5v
CN2
7
Press [START] key.
Press [CUSTOM SETTINGS] key.
Press [START] key.
Press [CUSTOM SETTINGS] key.
Or after 30sec output.
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
Click on the first or last page to see other AR-M550 (serv.man14) service manuals if exist.