Specifications

3-27
Machine Parameter 289
Switch
Initial
Setting
Adjust Usage/Comments
7 0
6 0
5 0
4 0
3 0
2 0
1 0
0 0
Transfer current adjustment
for standard paper back side
The plus setting increases
the current and the minus
setting decreases it.
Each setting changes by
0.11 µA.
When transfer problems occur, adjust this
parameter.
Switch 76543210 Settings
31 steps 00011111 +3.41 µA
:
8 steps 00001000 +0.88 µA
:
00000000 0 µA  Initial setting
-1 steps 10000001 -0.11 µA
-2 steps 10000010 -0.22 µA
:
-8 steps 10001000 -0.88 µA
:
-31 steps 10011111 -3.41 µA
When Switch 7 is “1”, it means “ - ”. For example,
“10000001” means “-0.11 µA”.
NOTE: Adjusting them too many steps effect the
print quality. Just try to decrease one or two steps
at first.
Machine Parameter 290 and 459 --- Factory use only
Machine Parameter 460
Switch
Initial
Setting
Adjust Usage/Comments
7 1
6 0
5 0
4 0
3 0
2 1
1 1
0 0
White balance adjustment
Copy/Black and white scan
mode
Resolution: 600x600dpi
Document type: Text
Switch 76543210
16 steps 00010000 + Darkest setting
:
8 steps 00001000
:
4 steps 00000100
:
0 step 00000000  Standard
:
-4 step 10000100
:
-8 step 10001000
:
-16step 10010000 Lightest setting
The total step is the sum of Machine parameter
460, 493(common steps for copy steps), and 492
(ADF only). However the steps cannot exceed –16
or 16.