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3. Select the Paper Size setting for the paper you loaded.If you want to print a borderless photo, select the paper size with a Sheet Feeder - Borderless option.You can load paper in these sizes and select the size in the printer software. A Custom option is also available so you can create a custom size (in OS X 10.3.9, select Custom Paper Size from the Settings pop-up menu).Envelope #10 (4 1/8 × 9 1/2 inches)
4. Choose portrait or one of the landscape Orientation options for your document or photo.
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6. Click OK to close the Page Setup window.