Canon TR8660 Online Manual page 299

Note
You can specify the number of copies for each photo. Display the photo you want to print and
specify the number of copies when the desired photo is displayed.
C: Select to switch the photo group.
For details:
Using Useful Display Functions
D: Select to display the Settings screen.
You can change the settings of page size, media type, and print quality and so on.
For more on the setting items:
Setting Items for Photo Printing Using Operation Panel
E: Select to display two photos side-by-side.
For more on the display method:
Using Useful Display Functions
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