Remove the following covers.
Left lower cover (Left Lower Cover)
Controller box (Controller Box (SP 5300/5310))
Remove the spring [A] from the paper exit unit [B].
Disconnect the connector [A] from the Connect-Left PCB [B], and then release it from the plastic harness guide [C].
Release the harness [A], disconnected in the previous step, from the harness guides.
Remove the three screws from the left side of the machine.
The screw [A] is a ground screw and [B] is a big screw. Be careful not to use the wrong screws when installing the paper exit unit.
Remove the bracket [A].
Remove the two screws from the right side of the machine.
Remove the paper exit unit [A].
When removing the paper exit unit [A], release the four hooks from both sides of the paper exit unit.
When removing the paper exit unit [A], disconnect the connector [B] from the paper exit unit.