Xerox 242 补充手册

Color Tools

147

When you open the Gradation Tool window, the default gradation table, 
DefaultTable, is selected in the Gradation Table list, and is displayed in the graph. 
This table serves as a baseline and consists of a 45° gradation curve, with Brightness 
and Contrast set to 

0, and Contrast Center set to 50. All of the color separations are 

selected.

Gradation tables that you create also appear in the 

Gradation Table list. When you 

select a gradation table, the predefined settings are immediately applied to the 
processed job that you are working with.

The separations buttons enable you to select one, all, or any combination of 
separations to edit for a specific gradation table. Selecting a specific separation 
enables you to change the color balance for a specific tonal range.

When you open the Gradations Tool window, all of the separations are selected.

1.

Click the 

All Colors button 

 to edit all the separations simultaneously.

2.

Click the individual separations you wish to edit—for example, select the cyan 
separation only.

3.

Click the curve in the graph to add a point, and then drag the point to modify 
the separation. When you select a point, its value appears in the 

Input or 

Output boxes.

The 

Input axis represents the tone values of the image before gradation 

changes. The 

Output axis represents the tone values of the image after 

gradation changes.

4. To view gradation changes in your job, click 

Refresh. Changes are automatically 

applied to the displayed image in the 

After view.

5.

To remove a point on the curve, select the point and then click 

Remove.

6.

To reset the gradation curve to a 45° curve, click the 

Reset button 

.

7.

To revert to the original gradation settings, click 

Revert.

8.

To remove the last change you made to the gradation graph, click 

Undo.

1.

In the Gradation Tool window, modify your gradation table as required.

2.

Click the 

Save button 

.