Oce CS2436 User Manual page 476

Adjustments for Better Print Quality (CS2436-7)
Note
10.
Press or
button.
11.
Repeat steps 8–10 to specify the adjustment value for D-2 to D-5 and D-7 to D-11.
12.
Press the Back button.
13.
Press or
14.
Press or
The adjustment value is now registered, and adjustment is complete.
If two patterns seem equally good and you cannot decide which one
is better, choose an intermediate value.
For example, choose 11 if you cannot decide whether pattern 10 or 12
is better.
to select the pattern number you have decided, and then press the OK
to select Register Setting, and then press the OK button.
to select Yes, and then press the OK button.