Canon BJC-85 manual Select Undo. Then, select either of the following

		Applying Special Effects to an Image
3	Once you are satisfied with the adjustment, click the OK button.
Note	To cancel an adjustment you have made, click the Menu button and then
	select Undo. Then, select either of the following:
	Last	Only the function applied immediately before is cancelled. If you
		perform editing two or more times, only the function that you
		selected most recently is cancelled.
	All	All the applied functions are cleared and the original image is
		restored.

Using the Scanner With Macintosh 82