Canon MultiPASS L6000 Software Manual page 100

The Brightness and Contrast dialog box displays a thumbnail of the
original cover page and presents nine suggested variations with
modified brightness and contrast.
3. On the Variations tab, click one of the thumbnails that displays
modified cover pages.
Additional suggested thumbnails, with modifications similar to your
previous selection, appear.
4. Continue clicking the suggested variations until the cover page
appears as you want it.
5. Click OK to apply the changes to the cover page. Click Cancel to
abandon the changes.
To adjust the brightness and contrast manually:
1. Select the cover page or a portion of the cover page.
2. On the Adjust menu, click Brightness and Contrast.
5-50 PC Faxing Chapter 5