Lexmark CX725
Remove the tray insert.
Remove the three screws (A).
Remove the right cover.
Remove the motor cover.
Remove the two screws (B).
Disconnect the cable (C).
Remove the motor.
Prevent jams and paper feed problems. Change the defective tray insert to maintain proper printing performance.
Lexmark CX/CSx2x and XC/Cxxxx: Paper Size Detection Is Incorrect due to Tray Configuration Issue