User`s guide

5. Fasten the feeder to the printer using the four screws provided
with the shipment. First, tighten all four screws with your
fingers, then tighten them securely with the screwdriver
provided.
6. Place the printer back in its normal orientation and verify that
the feeder tray is securely installed on the printer. Make sure
that there is no gap between the feeder and printer, and that
the feeder is not loose (fig. 4.5).
Fig. 4.5 Fasten Feeder to Printer Bottom
Chapter 4
4-6 Using Optional Accessories