2N8/2N7-5
1-3-85
U140 Setting: [Mag Duty]
1. Select the item to be set.
2. Change the setting value using the +/- keys or numeric keys.
3. Press the start key. The value is set.
Method: [AC Calib]
1. Select the item.
Method: [Calibration]
1. Turn the items to implement to on.
* : When the density of solid image is dropped, select "Type" and chose "+1". (High altitude
grain mode)
2. Select [Execute].
3. Press the start key. AC calibration is executed.
4. Turn the main power switch off and on. Allow more than 5 seconds between Off and On.
* : When an error occurs, an error code is displayed.
Setting: [Type]
1. Change the setting value using the +/- keys or numeric keys.
Item No. Description
Display Description
Setting
range
Initial setting
65ppm 80ppm
Normal Developer magnet roller duty 0 to 99 68 68
Display Description
Calibration Executing the AC calibration (Developer AC calibration setting)
Executing timing
1. When the setup at high altitude place.
2. Execute when replacing the developer unit or drum unit
3. Execute at the time of developing leak outbreak
4. When the density of solid image is dropped after the AC calibration.
Magnification AC calibration target bias value setting
Executing timing
1. Developing bias setting when developing leak occurs after AC cali-
bration practice
High Altitude Mode setting for AC calibration bias control
Executing timing
1. In case the density of solid image levels drop is not improved even if
execute AC calibration (setting at high altitude)
Display Description
K Change On/Off of Black developer
Type High altitude grain mode setting
Execute Executing the Calibration
Display Description
0 Continue the present setting and execute AC calibration
+1 High altitude grain mode: Perform AC calibration in a high altitude
installation and improve that image density becomes lighter
+2 Cancel high altitude grain mode setting and execute AC calibration
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