Kyocera Mita KM-1530 Service Manual page 73

2AV/X
Maintenance
item No.
U101 Setting high voltages
Description
Changes the developing bias voltage and transfer voltage by changing the developing bias control voltage
and transfer control voltage. Also checks the transfer output voltage.
Purpose
To check and change high voltages other than the main charger voltage.
Start
1. Press the start key. The screen for selecting an item is displayed.
2. Select the item to be set or checked using the cursor up/down keys.
3. Press the start key. The screen for the selected item is displayed.
DEV BIAS SET
TC SET
Setting the developing bias
1-4
1. Select the item to be adjusted using the cursor up/down keys. The selected item is displayed in reverse.
2. Change the setting using the cursor left/right keys.
DB DATA
DB DATA2
Increasing the setting makes the developing bias higher and the image darker; decreasing it makes the
bias lower and the image lighter.
3. Press the start key. The value is set.
4. To return to the screen for selecting an item, press the stop/clear key.
Setting the transfer voltage
1. Select the item to be adjusted using the cursor up/down keys. The selected item is displayed in reverse.
2. Change the TC DATA setting using the cursor left/right keys.
TC DATA
TC TIMING
Increasing the TC DATA setting makes the transfer voltage higher, and decreasing it makes the voltage
lower.
Increasing the TC TIMING setting makes the transfer voltage output timing later and improves paper
separation performance.
3. Press the start key. The value is set.
4. To check the transfer voltage output, select TC ON using the cursor up/down keys and press the start
key. The currently set transfer voltage is output.
5. To stop the transfer voltage output, press the stop/clear key.
6. To return to the screen for selecting an item, press the stop/clear key after the transfer voltage output is
stopped.
Interrupt copy mode
While this maintenance item is being performed, copying from an original can be made in interrupt copy
mode.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
1-4-24
Display
Setting the developing bias
Setting and checking the transfer voltage
Display Description
Developing bias control
voltage during image
formation
Developing bias control
voltage during no image
formation
Display Description
Transfer control voltage
Transfer voltage output timing
Description
Description
Setting range Initial setting
25 to 255 193
25 to 255 38
Setting range Initial setting
0 to 255
–250 to +250
115
–176