Canon BJ-10sx - Manual (Page 27)

You can print on single sheets of plain papers that match these
specifications:
Size 7.2 by 10.1 inches to 8.5 by 14.0 inches
(182 by 257 mm to 216 by 356 mm)
Thickness Less than 0.008 inches (0.2 mm)
Weight 17 to 24 lbs (64 to 90 g/m2) -- loaded from
top cover
17 to 28 lbs (64 to 105 g/m2) -- loaded
from bottom slot
Printing On Paper
When you are ready to print on plain paper, follow these steps:
1. Make sure the printer is turned off, and close the top cover if it is
open.
2. Set the printer on its back and adjust the paper thickness dial. Set
the dial to the top position (paper icon) if you will be printing
text. Set the dial to the center position (no icon) if you will be
printing graphics.
3. Set the printer on a level surface and open the top cover.