Canon TS9000 series Online Manual page 216

When you are not satisfied with the result of borderless printing, reduce the amount of extension. The
extension amount decreases as the Borderless Extension slider is moved to the left.
Important
• When the amount of extension is decreased, an unexpected margin may be produced on the print,
depending on the size of the paper.
Note
• When the Borderless Extension slider is set to the leftmost position, image data will be printed in
the full size. If you set this when printing the address side of a postcard, the postal code of the sender
is printed in the correct position.
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