2-4)Stick a screw driver or the like in the hole[A] while holding the tray A[1], release the roller[2] in the direction of arrow[B] and lower to the end.
[Caution] When to lower the tray A[1], do not to let it strike onto the neat stack unit (lower)[2].
2-5)Remove the 3 screws[2] and the stack wall (upper)[1].
2-6)Remove the 4 screws[2] and the neat stack unit (upper) cover (left)[1].
2-7)Check for disconnection of J2520[1] of the upper neat stack unit return roller lifting motor. If no connector is disconnected, check other factors (disconnection