Oki 1220n - Manual (Page 204)

ES 1220n Mac OS 9.x Utilities • 204
Create/Edit a New Gamma Curve Profile
1. To create a new Gamma Curve, press the New button. To edit,
highlight the profile and press the Edit button.
2. Select either All or an individual color (deselect All first). To
modify a curve, click on a point on the curve - the drag point - and
drag it to change the shape of the curve. Or if known, enter the
values in the fields below.
3. Once the configuration is completed, name and press the save
button to save the profile.
4. Remember, the Gamma Curve profile is tied to the displayed
PPD file. To gain access to the Gamma Curve profile, the PPD
file must be selected in the printer setup.