Kyocera KM-C2520 Service Manual page 73

Maintenance
item No.
Adjusting main high voltage
U100
Description
Controls the charger roller voltage to optimize the surface potential.
Purpose
To change the setting value to adjust the image if an image failure (background blur, etc.) occurs.
Method
1. Press the start key.
2. Select an item and press the start key. The screen for executing each item is displayed.
Display
Adjust MC AC Bias
AC Auto Adjustment
Set DC1
Adjust DC2
Low Temp. Setting (Drum) Pre-charge time at power supply ON
Setting: Main charger AC bias
1. Change the value using the cursor up/down keys.
The values set vary depending on environments.
Display
MC AC Bias (K)
MC AC Bias (C)
MC AC Bias (M)
MC AC Bias (Y)
2. Press the start key. The value is set.
Setting: AC bias auto adjustment
1. Select ON or OFF.
Display
ON
OFF
Initial setting: ON
2. Press the start key. The setting is set.
Displaying: Main charger DC bias
1. The current setting is diplayed.
Display
Bias1 K (Full)
Bias1 K (Half)
Bias1 C (Full)
Bias1 C (Half)
Bias1 M (Full)
Bias1 M (Half)
Bias1 Y (Full)
Bias1 Y (Half)
Description
Description
Main charger AC bias for each color
Setting the AC bias auto adjustment
Main charger DC bias for each color
Additional surface potential
Description
Main charger AC bias (black)
Main charger AC bias (cyan)
Main charger AC bias (magenta)
Main charger AC bias (yellow)
Description
Turns auto adjustment ON
Turns auto adjustment OFF
Description
Main charger DC bias (black)
Main charger DC bias (black)
Main charger DC bias (cyan)
Main charger DC bias (cyan)
Main charger DC bias (magenta)
Main charger DC bias (magenta)
Main charger DC bias (yellow)
Main charger DC bias (yellow)
2FZ/2F0/2HC-5
Setting Reference
range value
0 to 255 158
0 to 255 158
0 to 255 158
0 to 255 158
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