Xerox 300x Guida Utente

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To change the position of a point along a curve, delete an existing 
point and add a new one.  

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Macintosh:  Select the point so it turns black, then press the 
Delete key.

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Windows:  Click on the point with the right mouse button.

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It is possible to select any point on a curve at 5 percent intervals:  5, 
10, 15, and so on.  Not all percentages are visible in the edit boxes, 
but all percentages are adjustable on the curves.

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There are limits to the amount of change available at any given 
control point.  A point is not allowed to be higher than the next 
highest point, or lower than the next lowest point.  For example, if 
a curve has control points at 5, 25, and 50 percent, you cannot drag 
the 25 percent point higher than the 50 percent point, or lower 
than the 5 percent point.  

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When editing CMY or CMYK, several curves are being adjusted at 
the same time.  It is best to change them all by the same amount so 
the individual curves all have the same control points (or that all 
curves have no control points).  

If you have made adjustments to individual curves, and then need 
to adjust all of the curves together, first click OK to save the 
adjustments on the individual curves.   Then, reopen the 
Calibration Curves dialog box and select CMY or CMYK to adjust 
all curves together.