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2DC
Maintenance
item No.
U100
Setting the main high voltage
Description
Performs main charging.
Purpose
Checks the main charging.
Method
1. Press the start key. A selection item appears.
2. Select the item using the cpoy exposure adjustment keys.
Display (copy exposure indicator)
on1 (exp. 1)
on2 (exp. 2)
3. Press the start key. The selected operation starts.
4. To stop operation, press the stop/clear key.
Test copy mode
While this maintenance item is being performed, copying from an original can be made in test copy mode.
Completion
Press the stop/clear key when main charger output stops while a selection item is displayed. The indication for
selecting a maintenance item No. appears.
U101
Setting the other high voltages
Description
Changes the developing bias clock and the transfer charging output timing.
Purpose
To check the developing bias clock and the transfer charging output timing. Do not change the preset value.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select the item to be set by lighting a copy exposure indicator using the copy exposure adjustment keys.
2. Change the setting using the zoom +/– keys.
Copy exposure
indicator
Exp. 1 (lit)
Exp. 2 (lit)
Exp. 3 (lit)
Exp. 1 (flashing)
3. Press the start key. The value is set.
Completion
Press the stop/clear key while a selection item is displayed. The indication for selecting a maintenance item No.
appears.
1-4-16
Description
Turning the main charger on
Turning the main charger on and the laser scanner unit
on and off
Description
Developing bias clock frequency
Developing bias clock duty
Transfer charging output OFF timing
Transfer charging output ON timing
Description
Setting range
2 to 255
1 to 99
0 to 255
0 to 255
Initial setting
26
55
60
43
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