Canon BJ-200e - Manual (Page 42)

From this screen, you can select the paper size, media type, paper
source, print selection, print quality, and orientation.
T Click on the drop-down arrow next to the Paper Size setting to
select one of the following:
Letter (8 1/2 x 11 in), which is the default
Legal (8 1/2 x 14 in)
A4 (210 x 297 mm)
B5 (182 x 257 mm)
#10 Envelope (9.5 x 4.1 in)
DL Envelope (220 x 110 mm)
User Defined Size...
If you select User Defined Size, you see a dialog box that
allows you to set the paper size. First select the unit of
measurement you are using (inches or millimeters) and then
the width and length of the paper.
T Click on the drop-down arrow next to Media Type to select one
of the following:
Plain Paper, which is the default
Transparency