Ricoh fi-8040 Operator's Manual page 173

Insert the left end of the shaft into the slot, and lower the other end gradually.
e
Rotate the bushing in the direction of the arrow.
ATTENTION
Confirm that the pick roller is installed properly. Otherwise, paper jams or other
feeding errors may occur.
f
Close the sheet guide.
Make sure that both ends of the sheet guide are locked firmly.
173
Replacing the Consumables