Fujitsu N7100 Operator's Manual page 342

2. Remove the shaft.
Lift the right side of the roller first, then pull out the shaft from the slot on the
left.
3. Remove the brake roller from its shaft.
4. Attach a new brake roller on the shaft.
Insert the protrusion on the shaft into the slot.
Shaft
Brake roller
Shaft
Protrusion
Slot
Brake roller
342
6.5 Replacing Parts
Brake roller
Shaft