Lexmark CX725
Note: For a video demonstration, see HVPS removal.
Remove the transfer module. See Transfer module removal.
Remove the controller board. See Controller board removal.
Remove the retainer (A).
Disconnect the cable (B).
Remove the screw (C) securing the HVPS.
Press the three toner contacts (D) from inside the printer, and then remove the power supply.
Lexmark CS/X72x and C/XC41xx: Print Quality Diagnosis ? Light Print on Printed Page Colors
Color Missing or Very Light Print Output Exhibited on All Colors on Pages Printed from the Lexmark CS310, CS410, CS510, CX310, CX410, CX510,