Kyocera KM-4230 Service Manual page 246

Maintenance
item No.
U101 Setting high voltages
Description
Changes the developing bias voltage, transfer voltage and separation
voltage by changing the developing bias control voltage, transfer control
voltage and separation control voltage. Also checks the transfer output
voltage.
Purpose
To check and change high voltages other than the main charger voltage.
Start
1 Press the print key. The screen for selecting an item is displayed.
2 Select an item to be set or checked. The screen for the selected item is
displayed.
Display
DEV BIAS SET
TC SET
AC SET
Setting the developing bias
1 Select the item to be adjusted. The selected item is displayed in
reverse, and the current setting is displayed in the adjustment window.
2 Change the setting using the Up/Down keys.
Display Operation
DB DATA Developing bias control voltage
during image formation
DB DATA2 Developing bias control voltage
during no image formation
Increasing the setting makes the developing bias higher, and
decreasing it makes the bias lower.
3 Press the print key. The value is set.
4 To return to the screen for selecting in item, press the stop/clear key.
Description
Description
Setting the developing bias
Setting and checking the transfer voltage
Setting the separation voltage
Setting range
0 to 255
0 to 255
2A3/4
Initial setting
220
57
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