Canon Color imageCLASS MF8170c Basic Manual page 36

NOTE
To print on letterhead paper or paper printed with a logo, load the paper with the print side
facing down and the top of the paper to the front of the cassette.
2
Paper feed direction
Press down the paper stack so that it is loaded under the hook on
the paper guides.
Confirm that there is sufficient space between the hook and paper stack. Take out
some paper when there is no space.
Hook
Hook
2-8 Loading Paper