Xerox Phaser 780 Tabloid 用户指南

The curves tool allows you to modify any of the device link profiles that you 
create. You can save your edits in the same profile or create and save a new 
profile that reflects your adjustments.

Note that the curves tool is available only when the image window title 
bar indicates Editing Device Link.

To open an existing profile: From the File menu, select Edit Device 
Link. 

From the Device Link pull-down menu, select the profile you wish to 
modify; the Editing Device Link window opens. 

From the Edit menu, select Curves; the Curves window opens.

Adjust the curves as follows:

■

Select individual CMYK channels or All channels using the radio 
buttons on the left.

■

Adjust a point on the curve by clicking and dragging the point to 
the desired setting.

■

Add points (up to six) anywhere on a curve by clicking it. (The 
cursor has a plus sign). 

■

Delete points by holding down the Control key and clicking the 
point you wish to delete. (The cursor has a minus sign.)

Points added to or deleted from one curve result in the same points being 
added to deleted from the other curves. 

Points in the upper right area of the Curves graph adjust shadows, or the 
dark areas of the image. Points in the lower left area adjust highlights or 
whites. Points in the middle area affect contrast. 

Preview the image in the display window. Use the Caps/Lock key to 
toggle between the original preview image and the modified image. To 
restore the original settings, click Reset.

Curves show incremental change from the previously saved version of 
the device link profile (not the total change since the creation of the link).

Click OK when done.

To save the edited profile: From the File menu, select Save Device 
Link.