Lexmark CX725
Remove the flatbed. See Flatbed removal.
Remove the four screws (A), and then remove the supports (B).
Pull the facade from the flatbed to remove.
Lexmark CS/X72x and C/XC41xx: Print Quality Diagnosis ? Light Print on Printed Page Colors
Lexmark CX/CS8xx_72x and XC/Cxxxx: How to use the Lexmark Scan Center functions found in the 2016 Lexmark printer common utilities package