Read Sharp MX-M850 (serv.man36) Service Manual online
MX-M1100 ADJUSTMENTS 6 – 5
1-C
Transfer current adjustment
This adjustment is needed in the following situations:
* The high voltage MAIN PWB has been replaced.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
* The high voltage MAIN PWB has been replaced.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
1)
Enter the Sim. 8-6 mode.
2)
Select the output mode to be adjusted with the scroll button.
3)
Enter the adjustment value with 10-key, and press [OK] button.
The adjustment value is set.
Normally when the default value is set, the specified voltage is
outputted.
When [EXECUTE] button is pressed, the adjustment value is
saved and the transfer voltage is outputted simultaneously.
Since the actual output cannot be checked, if it is presumed to
be abnormal even though the adjustment value is set to the
default value, replace the high voltage main PWB.
The adjustment value is set.
Normally when the default value is set, the specified voltage is
outputted.
When [EXECUTE] button is pressed, the adjustment value is
saved and the transfer voltage is outputted simultaneously.
Since the actual output cannot be checked, if it is presumed to
be abnormal even though the adjustment value is set to the
default value, replace the high voltage main PWB.
1-D
Transfer cleaning voltage adjustment
This adjustment is needed in the following situations:
* The high voltage MAIN PWB has been replaced.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
* The high voltage MAIN PWB has been replaced.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
1)
Enter the Sim. 8-17 mode.
2)
Select the output mode to be adjusted with the scroll button.
A㧦400
㧧
THV+(FACE)
B㧦400
㧧
THV+(BACK)
0
A:
SIMULATION NO.08㧙06
THV SETTING AND OUTPUT
400
㨇
0 㨪 800㨉
OK
TEST
CLOSE
EXECUTE
Item/Display
Description of item
Setting range
Default
Actual output current
85-sheet
model
95/110-sheet
model
85-sheet
model
95/110-sheet
model
A
THV+ (FACE)
THV (Transfer) output
Front surface mode
0-800
300
400
30
± 1μA
40
± 1μA
B
THV+ (BACK)
Back surface mode
0-800
350
400
35
± 1μA
40
± 1μA
A㧦450
㧧
THVAC(FACE)
B㧦450
㧧
THVAC(BACK)
C㧦 10
㧧
THV́
0
A:
SIMULATION NO.08㧙17
THVAC SETTING AND OUTPUT
450
㨇
0 㨪 600㨉
OK
TEST
CLOSE
EXECUTE
A㧦450
㧧
THVAC(FACE)
B㧦450
㧧
THVAC(BACK)
C㧦 60
㧧
THV́
0
A:
SIMULATION NO.08㧙17
THVAC SETTING AND OUTPUT
450
㨇
0 㨪 600㨉
OK
TEST
CLOSE
EXECUTE
Item/Display
Description of item
Setting range
Default
Actual output voltage
85-sheet
model
95/110-sheet
model
85-sheet
model
95/110-sheet
model
A
THVAC (FACE)
THVAC output (AC)
Front surface mode
0-600
450
AC4.5kV (p–p)
B
THVAC (BACK)
Back surface mode
0-600
450
AC4.5kV (p–p)
C
THV-
THV-output (DC bias)
0-75
40
60
DC -400V
AC 4.5kV (p–p)
DC -600V
AC 4.5kV (p–p)
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