Canon PIXMA MP280 Series Advanced Manual page 309

Click OK.
When you execute print, the printer corrects the photo coloring and prints out the photos.
Important
Photo Optimizer PRO does not function when:
Background is set in the Stamp/Background dialog box on the Page Setup tab.
Define Stamp... is selected in the Stamp/Background dialog box on the Page Setup tab, and the
bitmapped stamp is configured.
Note
Depending on images, the Photo Optimizer PRO may have no discernible effect.
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