AR-BC260 SETTING AND ADJUSTMENTS 8 - 2
Since the output voltage cannot be checked directly due to the
machine structure, the adjustment value of the simulation is set to
the default (specified value) to perform the adjustment.
This adjustment must be performed in the following cases:
• When the high voltage power PWB is replaced.
• When a U2 trouble occurs.
• When the PCU PWB is replaced.
• When the EEPROM of the PCU PWB is replaced.
1) Enter the SIM 8-2 mode.
SIM 8-2
2) Select the output mode to be adjusted with the color key and
scroll key.
3) Enter the adjustment value (specified value), and press the
[OK] key.
By entering the default value (specified value), the specified
voltage is outputted.
Remark: When the default value is set, the specified voltage is
outputted.
There is, therefore, no need to check the output voltage
unless there is a doubt for any abnormality in the output
voltage.
If there is a need to check that the normal voltage is out-
putted or to adjust by referring to the output voltage, use
the method below.
1) Remove the rear cover of the machine.
2) Remove the image process fan motor and the duct.
3) Connect the high voltage adjustment harnesses (DHAi-
3471FCZZ/DHAi-3472FCZZ) with the connectors CNMON
and CNMONK on the high voltage PWB.
4) Enter the SIM8-2 mode.
5) Select the output mode to be adjusted with the color key and
the scroll key.
6) Check that the pin numbers of the connectors CNMON and
CNMONK are properly assigned to the connector pin numbers
of the high voltage adjustment harness.
7) Apply a digital multi-meter to the connector pins of the high
voltage adjustment harness corresponding to the output mode
to be adjusted.
ADJ 1
High voltage adjustment
ADJ 1A
Main charger grid voltage adjustment
Color
Item Operation
mode
Adjustment value
Main charger grid voltage
Monitor (High voltage PWB)
Pin
No.
Actual
voltage
Adjustment
range
Specified
value
(Default)
Monitor voltage
(Specified value)
Connector
K
A: HIGH SPEED
High speed (117mm/s) (B & W)
180 – 700
620
53.5 ± 0.2v
CNMONK
1
–620v
B: MIDDLE SPEED Middle speed (78mm/s) (Color) (B & W)
180 – 700
620
53.5 ± 0.2v
CNMONK
1
–620v
C: LOW SPEED
Low speed (58.5mm/s) (Color) (B & W)
(Special paper)
180 – 700
620
53.5 ± 0.2v
CNMONK
1
–620v
C
A: MIDDLE SPEED Middle speed (78mm/s) (Color) (B & W)
180 – 700
620
53.5 ± 0.2v
CNMON
3
–620v
B: LOW SPEED
Low speed (58.5mm/s) (Color) (B & W)
(Special paper)
180 – 700
620
53.5 ± 0.2v
CNMON
3
–620v
M
A: MIDDLE SPEED Middle speed (78mm/s) (Color) (B & W)
180 – 700
620
53.5 ± 0.2v
CNMON
7
–620v
B: LOW SPEED
Low speed (58.5mm/s) (Color) (B & W)
(Special paper)
180 – 700
620
53.5 ± 0.2v
CNMON
7
–620v
Y
A: MIDDLE SPEED Middle speed (78mm/s) (Color) (B & W)
180 – 700
620
53.5 ± 0.2v
CNMON
11
–620v
B: LOW SPEED
Low speed (58.5mm/s) (Color) (B & W)
(Special paper)
180 – 700
620
53.5 ± 0.2v
CNMON
11
–620v
A
B
