Xerox 4050 Maintenance Manual page 21

Guide to Performing Routine Maintenance
8. Pull the length guide forward to touch the back of the paper
stack.
9. Latch the paper feeder assembly by pressing the green dot
next to the green release lever until the assembly clicks into
position.
10. Slide the tray into the printer until it latches. The tray rises
automatically into position.
11. Press the Continue button to resume printing.
Feeder trays
1-5