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2BH/J-3
Maintenance
item No.
U109
Drum type display
Description
Displays the drum surface potential set as EEPROM of the drum unit.
Purpose
To check the drum surface potential.
Method
Press the start key.
* Drum surface potential (V) is displayed.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
U110
Checking/clearing the drum count
Description
Displays the drum counts for checking, clearing or changing the figure, which is used as a reference when
correcting the main charger potential output.
Purpose
To check the drum status. Also used to clear the count after replacing the drum during regular maintenance.
Since the count was cleared before shipping, do not clear it when installing.
Method
Press the start key. The drum counter count is displayed.
Clearing
1. Press the reset key.
2. Press the start key. The count is cleared, and the screen for selecting a maintenance item No. is displayed.
Setting
1. Enter a six-digit count using the numeric keys.
2. Press the start key. The count is set, and the screen for selecting a maintenance item No. is displayed.
Completion
To exit the maintenance mode without changing the count, press the stop/clear key. The screen for selecting a
maintenance item No. is displayed.
U112
Setting toner refresh operation
Description
Sets the drum refresh operation time and the developing bias on time at power on and after copying.
Purpose
To change the drum refresh operation time and the developing bias on time at power on and after copying if
image flow level is low.
Method
Press the start key. The screen for executing is displayed.
Setting
1. Select the item to be set. The selected item is displayed in reverse.
2. Change the setting using the cursor up/down keys.
Display
ON TIME(SEC)
BIAS TIME(MSEC)
3. Press the start key. The value is set.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
1-4-26
Description
Description
Toner refresh operation time
Developing bias on time
Setting range
Initial setting
50 to 150 (sec)
120
500 to 1000 (msec) 700
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