5Push the IN tray back toward the unit until it stops, and lower the top (OUT) tray if you raised it before inserting paper.
For information about loading specific paper types, see Chapter 2, “All About Paper,” of the HP OfficeJet R Series Basic Operations Guide.
For information about paper tray capacities, see Chapter 6, “Technical Information,” of the HP OfficeJet R Series Customer Care Guide.
HP OfficeJet R Series Setup Guide