Ricoh Aficio SP C320DN Hardware Manual page 122

6. Loading Paper
1. Lift and pull Tray 1 carefully, and then pull it out with both hands.
Place the tray on a flat surface.
2. Push the metal plate down until it clicks into place to lock.
6
3. Pinch the clip on the side paper guide and slide it to match the standard size.
When loading custom size paper, position the paper guide slightly wider than the actual paper size.
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CBK035
CBK036
CBK207