Canon BJC-55 User Manual page 431

Using the Scanner With Macintosh
2
Select a desired function from the list.
The following is an example of the screen displayed when you select
Edges. The operation is the same when any other function is selected. You
can check the approximate result of the selection in the Preview Area.
For details of each function, refer to the explanation displayed when you
click the Help button.
Using the Optional IS-12 Color Image Scanner Cartridge 431