Canon iR3245 Manual page 474

7
Combinations of Copy Modes
Some copy modes can be used in combination with other copy modes. Depending on the copy
modes you have selected, some copy modes which are not selected may be displayed with a [ ].
You cannot select these copy modes in combination with the currently selected copy modes.
Example: The display of the Different Size Originals key when the 2-Page Separation mode is set.
7-6 Operating the Express Copy Basic Features Screen