Oce Color System 200 Operator's Manual page 19

Hue Adjustment
Press the HUE ADJUST key.
Density Fine Adjustment
Press the DENSITY FINE ADJ. key.
If the C key is pressed while setting the Density Fine
Adjustment, Salutation Adjustment, or Hue Adjustment mode, the
screen returns to the Color Balance setting display.
Press the
OK
The Color Balance setting procedure is now complete, and
the screen returns to the standard display. The name of the
mode that was set is displayed.
The mode that was set can be canceled by pressing the
COLOR BALANCE key and then the C key.
Color Balance (General Flow of Setting/Cancellation)
key.
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