Canon PIXMA iP4200 Series Quick Start Manual page 21

(5) Select 4 x 6 in 101.6 x 152.4 mm or 5 x 7 in 127.0 x 177.8 mm from Paper Size in
the printer driver.
For a detailed description of the printer driver settings, refer to
Windows" on page 20, or
Always load paper in portrait orientation. Loading paper in
landscape orientation can cause the paper to be jammed.
We recommend using genuine Canon photo media when printing
photographs.
See
"Printing with Macintosh"
Portrait
"Using Specialty Media"
on page 23.
Landscape
on page 18.
Basic Printing
"Printing with
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