IBM S544-5343-03 - Manual (Page 228)

c. Install the flat orange/beige spacer to the left of the auxiliary tray pick roll so
that the indented edge is secure against the bottom of the pick roll.
9. Remove all paper from the printer tray.
10. Press down on the bottom plate of the paper tray until it snaps into position. Insert
the orange/beige spacer and place the tray back into the printer.
208 Network Printer 17: User’s Guide