Ricoh Aficio 551 Copy Reference Manual page 283

B
Place the paper in the tray along the edge on the left.
Note
Load up to about 500 sheets of paper in the tray.
C
Press the {Down} key.
The key blinks while the bottom plate is moving down.
D
Load paper by repeating steps B and C.
Note
The tray can hold up to 3,500 sheets.
E
Close the top cover.
ZBQY090E
ZBQY100E
B Loading Paper
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