Canon Pixma MG3550 Online Manual page 391

When the printer paper size is smaller than the Page Size, the page image will be
reduced. When the printer paper size is larger than the Page Size, the page
image will be enlarged.
• Specify a scaling factor
Directly type in a value into the Scaling box.
The current settings are displayed in the settings preview on the left side of the
printer driver.
5. Complete the setup
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