Epson 1010 User Manual page 128

The Cut Sheet Feeder
5. Make sure that the paper release lever is pushed all the way to
the back.
6. Tilt the cut sheet feeder slightly forward to fit the notches at the
base of the unit over the black pins inside the printer. Tilt the
feeder back until it rests on top of the printer.
5-4 Using the Printer Options