Kyocera KM-C2520 Service Manual page 74

2FZ/2F0/2HC-5
Maintenance
item No.
Setting: Additional surface potential
U100
1. Select the item to be set.
2. Change the value using the cursor up/down keys.
Display
Bias2K Full
Bias2K Half
Bias2C Full
Bias2C Half
Bias2M Full
Bias2M Half
Bias2Y Full
Bias2Y Half
3. Press the start key. The value is set.
Setting: Pre-charge time
1. Change the value using the cursor up/down keys.
Description
Pre-charge time at power supply ON
2. Press the start key. The value is set.
Supplement
While this maintenance item is being executed, copying from an original is available in the interrupt copying
mode.
Completion
Press the stop/clear key. The screen for maintenance item No. is displayed.
Setting the voltage for the primary transfer
U101
Description
Sets the control voltage for the primary transfer.
Purpose
To change the setting when any density problems, such as too dark or light, occur.
Setting
1. Press the start key.
2. Select the item to be set.
3. Change the value using the cursor up/down keys.
Display
Normal (Full M)
Normal (Half M)
Surround Correct
Add Color (C)
Add Color (Y)
Add Color (K)
*: Old and new transfer belt unit
4. Press the start key. The value is set.
Supplement
While this maintenance item is being executed, copying from an original is available in the interrupt copying
mode.
Completion
Press the stop/clear key. The screen for maintenance item No. is displayed.
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Description
Description
Main charger DC bias (black)
Main charger DC bias (cyan)
Main charger DC bias (magenta)
Main charger DC bias (yellow)
Main charger DC bias (black)
Main charger DC bias (cyan)
Main charger DC bias (magenta)
Main charger DC bias (yellow)
Description
Primary transfer positive voltage for magenta
(full speed)
Primary transfer positive voltage for magenta
(half speed)
Environmental correction ON/OFF setting
Addition value (cyan)
Addition value (yellow)
Addition value (black)
Setting
range
-128 to 127
-128 to 127
-128 to 127
-128 to 127
-128 to 127
-128 to 127
-128 to 127
-128 to 127
Setting range Default setting
0 to 6 1
Setting
range
0 to 255
0 to 255
0 (on)/1 (off)
-127 to 127
-127 to 127
-127 to 127
Default
setting
0
0
0
0
0
0
0
0
Default
setting
115/95*
80/75*
0
0/5*
0/10*
0/25*