Canon MF6180dw Manual page 94

4
Load the paper with the printing side down so that it aligns with the rear side of the paper drawer.
Load the paper in portrait orientation.
NOTE
When loading paper with a letterhead or logo
See "Paper Loading
5
Hold down the paper, then set it under the hooks (A) on the paper guides.
IMPORTANT
Adjust the paper guides to the paper width without space.
If the paper guides are loose or tight, this may result in misfeeds or paper jams.
Orientation," and load the paper in the proper orientation.