Setting The Other High Voltages - Kyocera TASKalfa 300i Service Manual

Maintenance
item No.

Setting the other high voltages

U101
Description
Sets the developing bias control voltage, the transfer control voltage, and the separation control voltage or
checks the output of these voltages.
Purpose
To check the developing bias, the transfer voltage and the separation voltage or to take measures against
drop of image density or background fog.
Setting
1. Press the start key.
2. Select the item to be set.
3. Change the setting using the +/- or numeric keys.
Display
DEV BIAS
DEV SBIAS
DEV DUTY
TC DATA
SC DATA
TC DATA2
TC ON
TC OFF
SC ON
SC OFF
Increasing the DEV BIAS setting makes the image darker; decreasing it makes the image lighter.
Increasing the DEV SBIAS setting makes the image darker.
Increasing the DEV DUTY setting makes the image lighter; decreasing it makes the image darker.
Increasing the TC DATA/TC DATA2 setting makes the transfer voltage higher, and decreasing it makes
the voltage lower.
Increasing the SC DATA setting makes the separation voltage higher, and decreasing it makes the volt-
age lower.
4. Press the start key. The value is set.
Completion
Press the stop key. The screen for selecting a maintenance item No. is displayed.
Description
Developing bias AC component frequency at image
formation
Developing shift bias potential at image formation
Developing bias AC component duty at image forma-
tion
Transfer control voltage
Separation control voltage
Transfer control voltage for small sizes
Time of period since the registration clutch is turned
on until the transfer voltage is turned on
Time of period since the registration clutch is turned
off until the transfer voltage is turned off
Time of period since the registration clutch is turned
on until the separation voltage is turned on
Time of period since the registration clutch is turned
off until the separation voltage is turned off
Description
Setting Initial
range setting
20 to 32 26
0 to 255 58
0 to 100 50
0 to 255 89
0 to 2 1
0 to 255 115
0 to 255 91
0 to 255 68
0 to 255 40
0 to 255 92
2K5
1-3-45