Canon MP980 series On-Screen Manual page 77

Loading Paper
Open the Paper Support, raise it, then tip it back.
(1)
Open the Paper Output Tray gently, and open the Output Tray Extension.
(2)
3.
Load paper.
Slide the Paper Guides (A) to open them, and load the paper in the center of the
(1)
Rear Tray WITH THE PRINT SIDE FACING YOU.
Important
Always load paper in the portrait orientation (B). Loading paper in the landscape
orientation (C) can cause paper jams.
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