Read Sharp AR-C270 (serv.man8) Service Manual online
∗
With all the OPC drums removed from the machine, bring the high
voltage probe into contact with the high voltage PWB GB pin to
check the adjustment value.
voltage probe into contact with the high voltage PWB GB pin to
check the adjustment value.
If an effective value meter and a high voltage probe are not available,
refer to the table below to enter the adjustment value.
refer to the table below to enter the adjustment value.
This allows to make a simple adjustment.
Main charger grid voltage adjustment value
Color
SIM 8-2 adjustment value
AR-C100/C150
AR-C250
AR-C160/C270
K
A
525
545
545
C
B
525
545
555
M
C
525
545
555
Y
D
525
545
555
ADJ 2
DV bias voltage adjustment
This adjustment must be performed in the following cases:
•
When the high voltage power (MC/DV) PWB is replaced.
•
When a U2 trouble occurs.
•
When the PCU main PWB is replaced.
•
When the EEPROM of the PCU main PWB is replaced.
1) Enter the SIM 8-1 mode.
2) Select the color mode to be adjusted with the scroll key and press
the [EXECUTE] key.
3) Check the output voltage with the high voltage probe, and adjust
the value of each color so that the specification in the table below
is satisfied.
Enter the adjustment value with the 10-key and press the [OK]
key.
is satisfied.
Enter the adjustment value with the 10-key and press the [OK]
key.
Color
Normal mode adjustment spec
Check pin
K
– 325
±
5V
(1)
C
– 325
±
5V
(2)
M
– 325
±
5V
(3)
Y
– 325
±
5V
(4)
∗
Set the developing unit (K, C, M, Y), bring the high voltage probe
into contact with the high voltage PWB GB pin to check the
adjustment value.
into contact with the high voltage PWB GB pin to check the
adjustment value.
If an effective value meter and a high voltage probe are not available,
refer to the table below to enter the adjustment value.
refer to the table below to enter the adjustment value.
This allows to make a simple adjustment.
Developing bias voltage adjustment value
Color
SIM 8-1 adjustment value
K
A
325
C
B
325
M
C
325
Y
D
325
ADJ 3
Transfer voltage adjustment
This adjustment must be performed in the following cases:
•
When the high voltage power (TC) PWB is replaced.
•
When a U2 trouble occurs.
•
When the PCU main PWB is replaced.
•
When the EEPROM of the PCU main PWB is replaced.
1) Enter the SIM 44-30 mode, enter the following value for each
mode and each color, and enter the [OK] key. (AR-C250/C160/
C270) (New version of AR-C150)
Enter the SIM 8-6 mode and enter the following values for each
color and press the [OK] key. (Old version of AR-C150)
C270) (New version of AR-C150)
Enter the SIM 8-6 mode and enter the following values for each
color and press the [OK] key. (Old version of AR-C150)
Transfer voltage input values
Display
BK
C
M
Y
Normal paper mode
A: SPX
178
164
123
123
ADU mode
B: DPX
178
164
123
123
OHP mode
C: TRANSPARENCY
204
209
167
182
Thick paper mode
D: HEAVY PAPER
204
187
138
138
(5)
(6)
(7)
(8)
GND
(1)
(2)
(3)
(4)
GND
7 – 4
Click on the first or last page to see other AR-C270 (serv.man8) service manuals if exist.