Minolta Di251 Service Manual page 171

3. Load the paper under the separating fingers
fitted to the edge-guide-plates.
NOTE
Do not load so much paper that the top of the
stack is higher than the mark.
Be careful not to touch the surface of the paper
take-up rollers. If they have been touched, wipe
them with a soft, dry cloth.
Be sure the paper is not curled when it is loaded.
Make sure that the front/rear edge-guide-plates
are pressed tightly up against the edges of the
paper stack.
Rev. 11..0.0/03.01 I-83 Di251/Di351