Maintenance
Description
item No.
2DC-2
1-4-16
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 while a selection item is displayed. The indication for selecting a maintenance item No.
appears.
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) Description
on1 (exp. 1) Turning the main charger on
on2 (exp. 2) Turning the main charger on and the laser scanner unit
on and off
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
Description Setting range Initial setting
indicator
Exp. 1 (lit) Developing bias clock frequency 2 to 255 26
Exp. 2 (lit) Developing bias clock duty 1 to 99 55
Exp. 3 (lit) Transfer charging output OFF timing 0 to 255 48
Exp. 1 (flashing) Transfer charging output ON timing 0 to 255 45
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.
U093
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