Kyocera KM-C2520 Service Manual page 75

Maintenance
item No.
Setting the voltage for the secondary transfer
U106
Description
Sets the control voltage for the secondary transfer depending on each paper type.
Purpose
To change the setting when any density problems, such as too dark or light, occur.
Method
1. Press the start key.
2. Select the item to be set. The screen for executing each item is displayed.
Display
Light/Normal 1 Full Front
Normal2/3 Full Front
Light/Normal 1 Full Back
Normal 2/3 Full Back
Heavy 1 - 3
OHP
Bias
Setting: [Light/Normal 1 Full Front]
1. Change the value using the cursor up/down keys.
Display
Width<160
160<=Width<220
220<=Width
*: Old and new transfer high voltage PWB. (Refer to the maintenance mode U972 on P.1-3-93.)
2. Press the start key. The value is set.
Setting: [Normal2/3 Full Front]
1. Change the value using the cursor up/down keys.
Display
Width<160
160<=Width<220
220<=Width
*: Old and new transfer high voltage PWB. (Refer to the maintenance mode U972 on P.1-3-93.)
2. Press the start key. The value is set.
Setting: [Light/Normal 1 Full Back]
1. Change the value using the cursor up/down keys.
Display
Width<160
160<=Width<220
220<=Width
*: Old and new transfer high voltage PWB. (Refer to the maintenance mode U972 on P.1-3-93.)
2. Press the start key. The value is set.
Description
Description
Control voltage for the transfer bias for the first side on paper with
thickness 60 g/m
2
Control voltage for the transfer bias for the first side on paper with
thickness 75 g/m
2
Control voltage for the transfer bias for the second side on paper with
thickness 60 g/m
2
Control voltage for the transfer bias for the second side on paper with
thickness 75 g/m
2
Control voltage for the transfer bias on paper with thickness 105 g/m
to 220 g/m
2
Control voltage for the transfer bias for transparencies
Transfer bias value
Description
Small sizes (under 160 mm wide)
Medium sizes (more than 160 to under 220 mm
wide)
Large sizes (more than 220mm wide)
Description
Small sizes (under 160 mm wide)
Medium sizes (more than 160 to under 220 mm
wide)
Large sizes (more than 220mm wide)
Description
Small sizes (under 160 mm wide)
Medium sizes (more than 160 to under 220 mm
wide)
Large sizes (more than 220mm wide)
to 64 g/m and 60 g/m to 75 g/m
2 2
to 105 g/m
2
to 64 g/m and 60 g/m to 75 g/m
2 2
to 105 g/m
2
2FZ/2F0/2HC-5
2
2
Setting Default
range setting
0 to 255 225/174*
0 to 255 240/162*
0 to 255 160/109*
Setting Default
range setting
0 to 255 225/174*
0 to 255 240/162*
0 to 255 170/124*
Setting Default
range setting
0 to 255 225/224*
0 to 255 240/174*
0 to 255 140/102*
2
1-3-35