Ricoh SP3510SF - Manual (Page 108)

2. Pinch the clips on the side paper guide, and then adjust the guide to the paper size.
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3. Pinch the clip on the end paper guide, and slide it inward to match the paper size.
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4. Load the new paper stack print side down.
Make sure paper is not stacked higher than the upper limit marked inside the tray.
2. Getting Started
106