Ricoh Aficio SP 3500N Hardware Manual page 71

Loading Paper
CMC049
When loading custom size paper, position the paper guide slightly wider than the actual paper
size.
4. Load the new paper stack print side down.
Make sure paper is not stacked higher than the upper limit marked inside the tray.
CMC050
Slide the guides inward, until they are flush against the paper's sides.
Make sure the paper is not stacked higher than the projection on the side paper guides.
CMC051
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