Canon imageCLASS MF5730 Basic Manual page 36

4
Load the paper stack in the cassette with the print side down.
When you load paper with a logo on, position the paper with the print side down (logo
side) and load it so that the top of the paper feeds first in the cassette.
5
While holding the lock release lever on the paper guide on left side
of the cassette, slide the paper guide to the mark indicating the
desired paper size.
The paper guides on the sides of the cassette move together.
Loading Paper 2-5
2