2N8/2N7
1-3-78
U128 Setting transfer high-voltage timing
Description
Adjusts the ON/OFF timing of transfer high-voltage output.
Purpose
Basically, the setting need not be changed. If any problem such as faulty images or dirt on the
back surface occurs, change the setting.
Method
1. Press the start key.
2. Select the item to set.
3. Change the value using the +/- keys or numeric keys.
* : Increasing the value will deteriorate paper separation as it delays transfer-off timing.
* : Decreasing the value will improve paper separation as it advances transfer-off timing (wid-
ening the transfer margins at the trailing edge of paper at ejection).
4. Press the start key. The value is set.
Completion
Press the stop key. The screen for selecting a maintenance item No. is displayed.
U130 Initial setting for the developer
Description
The toner sensor control bias is adjusted so that the sensor output is set as the target value with
the initial developer.
Purpose
Automatically executed when the developer unit loaded with the initial developer is replaced.
Method
1. Press the start key.
2. Select [Execute].
3. Press the start key.
Toner installation is started and the control value of the toner sensor is displayed.
Completion
Press the stop key. The screen for selecting a maintenance item No. is displayed.
Item No. Description
Display Description
Setting
range
Initial setting
65ppm 80ppm
On Timing
1st
Transfer ON timing adjust-
ment value (first side)
-200 to 200 -13 -10
Off Timing Transfer OFF timing adjust-
ment value
-200 to 200 -20 -21
Display Description
K Toner sensor control voltage
Execute Execute
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