Ricoh SP C250SF Operating Instructions Manual page 76

2. Loading Paper
1. Remove the rear cover using a coin.
2. Pull out Tray 1 carefully with both hands.
Place the tray on a flat surface.
3. Push the metal plate down until it clicks.
4. Pinch the extender in the "PUSH" direction, and then pull out the extender until it clicks.
After extension, check that the arrows on the extender and tray are aligned.
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DAC032
DAC050
DAC055