Lexmark CS310 CS410 CS510 CX310 CX410 CX510 250-Sheet Tray Insert. Lexmark CS310 CS410 CS510 CX310 CX410 CX510 250-Sheet Tray Insert. Genuine Lexmark Parts assure customers they are getting quality OEM parts that are designed and supported by an award-winning global technology company. OEM Color Laser Parts.