IBM S510-2222-00 Setup Manual page 74

Note: If there is only a partial stack
of paper in the tray, the paper low
sensor will not allow the tray to go
down. Add more paper to lower the
tray.
66
Load paper
8
Press the Paper Tray button.
The paper tray lowers so you can
load another 500 sheets of paper.
9
Place the paper against the paper
guides, with the print side up.
10
Repeat step 8 and step 9 until you
have filled the tray or loaded the
desired quantity.
11
Close the high-capacity feeder top
cover.
Make sure the high-capacity
feeder is pushed completely
against the printer.