Lexmark CX725
Remove the left cover. See Left cover removal.
Route the cable out of the guides (A).
Disconnect the three motor cables (B).
Route the motor cables out of the guides (C) from under the gear box.
Remove the two screws (D) from under the gear box.
Remove the two screws (E) from the top-left and top-right corners of the EP drive, and then remove the gear box.
Lexmark CX/CS72x and XC/C41xx: Print Quality Diagnosis? A Single Color Is Partially Missing After Printing a Document
Brand New or Out-of-the-box Printer with IPDS Card Does Not Print